org.apache.ignite

## Interface IgniteCache<K,V>

- Type Parameters:
    `K` - Cache key type.
    `V` - Cache value type.
  All Superinterfaces:
    AutoCloseable, javax.cache.Cache<K,V>, Closeable, IgniteAsyncSupport, Iterable<javax.cache.Cache.Entry<K,V>>

      public interface IgniteCache<K,V>
      extends javax.cache.Cache<K,V>, IgniteAsyncSupport

  Main entry point for all Data Grid APIs. You can get a named cache by calling `Ignite.cache(String)` method.

  # Functionality

  This API extends `Cache` API which contains `JCache (JSR107)` cache functionality and documentation. In addition to `Cache` functionality this API provides:
  - Ability to perform basic atomic Map-like operations available on `JCache` API.
  - Ability to bulk load cache via `loadCache(IgniteBiPredicate, Object...)` method.
  - Distributed lock functionality via `lock(Object)` methods.
  - Ability to query cache using Predicate, SQL, and Text queries via `query(Query)` method.
  - Ability to collect cache and query metrics.
  - Ability to force partition rebalancing via `rebalance()` methopd (in case if delayed rebalancing was configured.)
  - Ability to peek into memory without doing actual `get(...)` from cache via `localPeek(Object, CachePeekMode...)` methods
  - Ability to evict and promote entries from on-heap to off-heap or swap and back.
  - Ability to atomically collocate compute and data via `invoke(Object, CacheEntryProcessor, Object...)` methods.

  # Transactions

  Cache API supports transactions. You can group and set of cache methods within a transaction to provide ACID-compliant behavior. See `IgniteTransactions` for more information.
  Methods which can be used inside transaction (put, get...) throw TransactionException. See `TransactionException` for more information.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface javax.cache.Cache

      `javax.cache.Cache.Entry<K,V>`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `clear()`
    `void` | `clear(K key)` Clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `void` | `clearAll(Set<? extends K> keys)` Clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `IgniteFuture<Void>` | `clearAllAsync(Set<? extends K> keys)` Asynchronously clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `IgniteFuture<Void>` | `clearAsync()` Asynchronously clears the contents of the cache, without notifying listeners or `CacheWriter`s.
    `IgniteFuture<Void>` | `clearAsync(K key)` Asynchronously clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `void` | `clearStatistics()` Clear cluster statistics for this cache.
    `void` | `close()` Closes this cache instance.
    `boolean` | `containsKey(K key)`
    `IgniteFuture<Boolean>` | `containsKeyAsync(K key)` Asynchronously determines if the `Cache` contains an entry for the specified key.
    `boolean` | `containsKeys(Set<? extends K> keys)` Determines if the `Cache` contains entries for the specified keys.
    `IgniteFuture<Boolean>` | `containsKeysAsync(Set<? extends K> keys)` Asynchronously determines if the `Cache` contains entries for the specified keys.
    `void` | `destroy()` Completely deletes the cache with all its data from the system on all cluster nodes.
    `void` | `enableStatistics(boolean enabled)` Sets statistics enabled flag cluster wide for this cache.
    `V` | `get(K key)`
    `Map<K,V>` | `getAll(Set<? extends K> keys)`
    `IgniteFuture<Map<K,V>>` | `getAllAsync(Set<? extends K> keys)` Asynchronously gets a collection of entries from the `Cache`, returning them as `Map` of the values associated with the set of keys requested.
    `Map<K,V>` | `getAllOutTx(Set<? extends K> keys)` Gets values from cache.
    `IgniteFuture<Map<K,V>>` | `getAllOutTxAsync(Set<? extends K> keys)` Asynchronously gets values from cache.
    `V` | `getAndPut(K key, V val)`
    `IgniteFuture<V>` | `getAndPutAsync(K key, V val)` Asynchronously associates the specified value with the specified key in this cache, returning an existing value if one existed as the future result.
    `V` | `getAndPutIfAbsent(K key, V val)` Stores given key-value pair in cache only if cache had no previous mapping for it.
    `IgniteFuture<V>` | `getAndPutIfAbsentAsync(K key, V val)` Asynchronously stores given key-value pair in cache only if cache had no previous mapping for it.
    `V` | `getAndRemove(K key)`
    `IgniteFuture<V>` | `getAndRemoveAsync(K key)` Asynchronously removes the entry for a key only if currently mapped to some value.
    `V` | `getAndReplace(K key, V val)`
    `IgniteFuture<V>` | `getAndReplaceAsync(K key, V val)` Asynchronously replaces the value for a given key if and only if there is a value currently mapped by the key.
    `IgniteFuture<V>` | `getAsync(K key)` Asynchronously gets an entry from the cache.
    `<C extends javax.cache.configuration.Configuration<K,V>> C` | `getConfiguration(Class<C> clazz)`
    `Collection<CacheEntry<K,V>>` | `getEntries(Set<? extends K> keys)` Gets a collection of entries from the `Cache`.
    `IgniteFuture<Collection<CacheEntry<K,V>>>` | `getEntriesAsync(Set<? extends K> keys)` Asynchronously gets a collection of entries from the `Cache`.
    `CacheEntry<K,V>` | `getEntry(K key)` Gets an entry from the cache.
    `IgniteFuture<CacheEntry<K,V>>` | `getEntryAsync(K key)` Asynchronously gets an entry from the cache.
    `IgniteFuture<?>` | `indexReadyFuture()` Returns future that will be completed when all indexes for this cache are ready to use.
    `<T> T` | `invoke(K key, CacheEntryProcessor<K,V,T> entryProcessor, Object... arguments)` Invokes an `CacheEntryProcessor` against the `Cache.Entry` specified by the provided key.
    `<T> T` | `invoke(K key, javax.cache.processor.EntryProcessor<K,V,T> entryProcessor, Object... arguments)` Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.
    `<T> Map<K,javax.cache.processor.EntryProcessorResult<T>>` | `invokeAll(Map<? extends K,? extends javax.cache.processor.EntryProcessor<K,V,T>> map, Object... args)` Asynchronously invokes each `EntryProcessor` from map's values against the correspondent `Cache.Entry` specified by map's key set.
    `<T> Map<K,javax.cache.processor.EntryProcessorResult<T>>` | `invokeAll(Set<? extends K> keys, CacheEntryProcessor<K,V,T> entryProcessor, Object... args)` Invokes an `CacheEntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.
    `<T> Map<K,javax.cache.processor.EntryProcessorResult<T>>` | `invokeAll(Set<? extends K> keys, javax.cache.processor.EntryProcessor<K,V,T> entryProcessor, Object... args)` Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.
    `<T> IgniteFuture<Map<K,javax.cache.processor.EntryProcessorResult<T>>>` | `invokeAllAsync(Map<? extends K,? extends javax.cache.processor.EntryProcessor<K,V,T>> map, Object... args)` Asynchronous version of the `invokeAll(Map, Object...)` method.
    `<T> IgniteFuture<Map<K,javax.cache.processor.EntryProcessorResult<T>>>` | `invokeAllAsync(Set<? extends K> keys, CacheEntryProcessor<K,V,T> entryProcessor, Object... args)` Asynchronously invokes an `CacheEntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.
    `<T> IgniteFuture<Map<K,javax.cache.processor.EntryProcessorResult<T>>>` | `invokeAllAsync(Set<? extends K> keys, javax.cache.processor.EntryProcessor<K,V,T> entryProcessor, Object... args)` Asynchronously invokes an `EntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.
    `<T> IgniteFuture<T>` | `invokeAsync(K key, CacheEntryProcessor<K,V,T> entryProcessor, Object... arguments)` Asynchronously invokes an `CacheEntryProcessor` against the `Cache.Entry` specified by the provided key.
    `<T> IgniteFuture<T>` | `invokeAsync(K key, javax.cache.processor.EntryProcessor<K,V,T> entryProcessor, Object... arguments)` Asynchronously invokes an `EntryProcessor` against the `Cache.Entry` specified by the provided key.
    `boolean` | `isLocalLocked(K key, boolean byCurrThread)` Checks if specified key is locked.
    `void` | `loadCache(@Nullable IgniteBiPredicate<K,V> p, Object... args)` Executes `localLoadCache(IgniteBiPredicate, Object...)` on all cache nodes.
    `IgniteFuture<Void>` | `loadCacheAsync(@Nullable IgniteBiPredicate<K,V> p, Object... args)` Asynchronously executes `localLoadCache(IgniteBiPredicate, Object...)` on all cache nodes.
    `void` | `localClear(K key)` Clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `void` | `localClearAll(Set<? extends K> keys)` Clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s.
    `Iterable<javax.cache.Cache.Entry<K,V>>` | `localEntries(CachePeekMode... peekModes)` Allows for iteration over local cache entries.
    `void` | `localEvict(Collection<? extends K> keys)` Attempts to evict all entries associated with keys.
    `void` | `localLoadCache(@Nullable IgniteBiPredicate<K,V> p, Object... args)` Delegates to `CacheStore.loadCache(IgniteBiInClosure,Object...)` method to load state from the underlying persistent storage.
    `IgniteFuture<Void>` | `localLoadCacheAsync(@Nullable IgniteBiPredicate<K,V> p, Object... args)` Asynchronously loads state from the underlying persistent storage by delegating to `CacheStore.loadCache(IgniteBiInClosure,Object...)` method.
    `CacheMetrics` | `localMetrics()` Gets local snapshot metrics (statistics) for this cache.
    `V` | `localPeek(K key, CachePeekMode... peekModes)` Peeks at a value in the local storage using an optional peek mode.
    `boolean` | `localPreloadPartition(int partition)` Efficiently preloads cache partition into page memory if it exists on the local node.
    `int` | `localSize(CachePeekMode... peekModes)` Gets the number of all entries cached on this node.
    `long` | `localSizeLong(CachePeekMode... peekModes)` Gets the number of all entries cached on this node as a long value.
    `long` | `localSizeLong(int partition, CachePeekMode... peekModes)` Gets the number of all entries cached on this node for the partition as a long value.
    `Lock` | `lock(K key)` Creates a `Lock` instance associated with passed key.
    `Lock` | `lockAll(Collection<? extends K> keys)` Deprecated. It is recommended to use `Ignite.reentrantLock(String, boolean, boolean, boolean)` instead. This method will be removed in future releases.
    `Collection<Integer>` | `lostPartitions()` Gets a collection of lost partition IDs.
    `CacheMetrics` | `metrics()` Gets whole cluster snapshot metrics (statistics) for this cache.
    `CacheMetrics` | `metrics(ClusterGroup grp)` Gets cluster group snapshot metrics for caches in cluster group.
    `void` | `preloadPartition(int partition)` Efficiently preloads cache primary partition into page memory.
    `IgniteFuture<Void>` | `preloadPartitionAsync(int partition)` Efficiently preloads cache partition into page memory.
    `void` | `put(K key, V val)`
    `void` | `putAll(Map<? extends K,? extends V> map)` Keys are locked in the order in which they appear in map.
    `IgniteFuture<Void>` | `putAllAsync(Map<? extends K,? extends V> map)` Asynchronously copies all of the entries from the specified map to the `Cache`.
    `IgniteFuture<Void>` | `putAsync(K key, V val)` Asynchronously associates the specified value with the specified key in the cache.
    `boolean` | `putIfAbsent(K key, V val)` For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries.
    `IgniteFuture<Boolean>` | `putIfAbsentAsync(K key, V val)` Asynchronously associates the specified key with the given value if it is not already associated with a value.
    `<R> QueryCursor<R>` | `query(Query<R> qry)` Queries cache.
    `<T,R> QueryCursor<R>` | `query(Query<T> qry, IgniteClosure<T,R> transformer)` Queries the cache transforming the entries on the server nodes.
    `FieldsQueryCursor<List<?>>` | `query(SqlFieldsQuery qry)` Queries cache.
    `Collection<? extends QueryDetailMetrics>` | `queryDetailMetrics()` Gets query detail metrics.
    `QueryMetrics` | `queryMetrics()` Gets query metrics.
    `IgniteFuture<Boolean>` | `rebalance()` Deprecated. Use baseline topology feature instead. Please, be aware this API will be removed in the next releases.
    `boolean` | `remove(K key)`
    `boolean` | `remove(K key, V oldVal)` For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries.
    `void` | `removeAll()` Removes all of the mappings from this cache.
    `void` | `removeAll(Set<? extends K> keys)` Keys are locked in the order in which they appear in key set.
    `IgniteFuture<Void>` | `removeAllAsync()` Asynchronously removes all of the mappings from this cache.
    `IgniteFuture<Void>` | `removeAllAsync(Set<? extends K> keys)` Asynchronously removes entries for the specified keys.
    `IgniteFuture<Boolean>` | `removeAsync(K key)` Asynchronously removes the mapping for a key from this cache if it is present.
    `IgniteFuture<Boolean>` | `removeAsync(K key, V oldVal)` Asynchronously removes the mapping for a key only if currently mapped to the given value.
    `boolean` | `replace(K key, V val)`
    `boolean` | `replace(K key, V oldVal, V newVal)` For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries.
    `IgniteFuture<Boolean>` | `replaceAsync(K key, V val)` Asynchronously replaces the entry for a key only if currently mapped to a given value.
    `IgniteFuture<Boolean>` | `replaceAsync(K key, V oldVal, V newVal)` Asynchronous version of the `replace(Object, Object, Object)`.
    `void` | `resetQueryDetailMetrics()` Reset query detail metrics.
    `void` | `resetQueryMetrics()` Reset query metrics.
    `int` | `size(CachePeekMode... peekModes)` Gets the number of all entries cached across all nodes.
    `IgniteFuture<Integer>` | `sizeAsync(CachePeekMode... peekModes)` Asynchronously gets the number of all entries cached across all nodes.
    `long` | `sizeLong(CachePeekMode... peekModes)` Gets the number of all entries cached across all nodes as a long value.
    `long` | `sizeLong(int partition, CachePeekMode... peekModes)` Gets the number of all entries cached in a partition as a long value.
    `IgniteFuture<Long>` | `sizeLongAsync(CachePeekMode... peekModes)` Asynchronously gets the number of all entries cached across all nodes as a long value.
    `IgniteFuture<Long>` | `sizeLongAsync(int partition, CachePeekMode... peekModes)` Asynchronously gets the number of all entries cached in a partition as a long value.
    `<K1,V1> IgniteCache<K1,V1>` | `withAllowAtomicOpsInTx()` If you want to use atomic operations inside transactions you should allow it before transaction start.
    `IgniteCache<K,V>` | `withAsync()` Deprecated.
    `IgniteCache<K,V>` | `withExpiryPolicy(javax.cache.expiry.ExpiryPolicy plc)` Returns cache with the specified expired policy set.
    `<K1,V1> IgniteCache<K1,V1>` | `withKeepBinary()` Returns cache that will operate with binary objects.
    `IgniteCache<K,V>` | `withNoRetries()`
    `IgniteCache<K,V>` | `withPartitionRecover()` Gets an instance of `IgniteCache` that will be allowed to execute cache read operations regardless of partition loss policy.
    `IgniteCache<K,V>` | `withReadRepair(ReadRepairStrategy strategy)` This is an experimental API.
    `IgniteCache<K,V>` | `withSkipStore()`

    - ### Methods inherited from interface javax.cache.Cache

      `deregisterCacheEntryListener, getCacheManager, getName, isClosed, iterator, loadAll, registerCacheEntryListener, unwrap`

    - ### Methods inherited from interface java.lang.Iterable

      `forEach, spliterator`

    - ### Methods inherited from interface org.apache.ignite.lang.IgniteAsyncSupport

      `future, isAsync`

- - ### Method Detail

    - #### withAsync

          @Deprecated
          IgniteCache<K,V> withAsync()

      Deprecated.
      Gets instance of this component with asynchronous mode enabled.
      Specified by:
        `withAsync` in interface `IgniteAsyncSupport`
      Returns:
        Instance of this component with asynchronous mode enabled.

    - #### getConfiguration

          <C extends javax.cache.configuration.Configuration<K,V>> C getConfiguration(Class<C> clazz)

      Specified by:
        `getConfiguration` in interface `javax.cache.Cache<K,V>`

    - #### withExpiryPolicy

          IgniteCache<K,V> withExpiryPolicy(javax.cache.expiry.ExpiryPolicy plc)

      Returns cache with the specified expired policy set. This policy will be used for each operation invoked on the returned cache.

      This method does not modify existing cache instance.

      Parameters:
        `plc` - Expire policy to use.
      Returns:
        Cache instance with the specified expiry policy set.

    - #### withSkipStore

          IgniteCache<K,V> withSkipStore()

      Returns:
        Cache with read-through write-through behavior disabled.

    - #### withNoRetries

          IgniteCache<K,V> withNoRetries()

      Returns:
        Cache with no-retries behavior enabled.

    - #### withPartitionRecover

          IgniteCache<K,V> withPartitionRecover()

      Gets an instance of `IgniteCache` that will be allowed to execute cache read operations regardless of partition loss policy.
      Returns:
        Cache without partition loss protection.

    - #### withReadRepair

          IgniteCache<K,V> withReadRepair(ReadRepairStrategy strategy)

      This is an experimental API.

      Gets an instance of `IgniteCache` that will perform backup nodes check on each get attempt.

      Read Repair means that each backup node will be checked to have the same entry as the primary node has.

      In case consistency violations were found, the values across the topology will be replaced by repaired values according to the chosen strategy, see `ReadRepairStrategy` for the details.

      A consistency violation exception will be thrown when the repair is impossible.

      `CacheConsistencyViolationEvent` will be recorded for each violation in case it's configured as recordable.

      - For transactional caches, values will be repaired:
        - automatically for transactions that have `TransactionConcurrency.OPTIMISTIC` concurrency mode or `TransactionIsolation.READ_COMMITTED` isolation level,
        - at commit() phase for transactions that have `TransactionConcurrency.PESSIMISTIC` concurrency mode and isolation level other than `TransactionIsolation.READ_COMMITTED`
        Warning:

        This proxy usage does not guarantee "all copies check" in case the value have been already cached inside the transaction. In case you don't use a READ_COMMITTED isolation mode and already have a cached value, for example have already read the value or performed a write, you'll just get the cached value.

      - For atomic caches, values will be repaired automatically.

        Warning:

        Due to the nature of an atomic cache, false-positive results can be observed. For example, an attempt to check consistency under cache's loading may lead to a consistency violation exception. By default, the implementation tries to check the given key three times. The number of attempts can be changed using `IgniteSystemProperties.IGNITE_NEAR_GET_MAX_REMAPS` property.

      A consistency check is incompatible with the following cache configurations:
      - Caches without backups.
      - Near caches.
      - Caches that use "read-through" mode.

      Full list of repairable methods:

      - `containsKey(K)` && `containsKeyAsync(K)`
      - `containsKeys(java.util.Set<? extends K>)` && `containsKeysAsync(java.util.Set<? extends K>)`
      - `getEntry(K)` && `getEntryAsync(K)`
      - `getEntries(java.util.Set<? extends K>)` && `getEntriesAsync(java.util.Set<? extends K>)`
      - `get(K)` && `getAsync(K)`
      - `getAll(java.util.Set<? extends K>)` && `getAllAsync(java.util.Set<? extends K>)`
      Parameters:
        `strategy` - Read Repair strategy.
      Returns:
        Cache with explicit consistency check on each read and repair if necessary.

    - #### withKeepBinary

          <K1,V1> IgniteCache<K1,V1> withKeepBinary()

      Returns cache that will operate with binary objects.

      Cache returned by this method will not be forced to deserialize binary objects, so keys and values will be returned from cache API methods without changes. Therefore, signature of the cache can contain only following types:

      - `org.apache.ignite.binary.BinaryObject` for binary classes
      - All primitives (byte, int, ...) and there boxed versions (Byte, Integer, ...)
      - Arrays of primitives (byte[], int[], ...)
      - `String` and array of `String`s
      - `UUID` and array of `UUID`s
      - `Date` and array of `Date`s
      - `Timestamp` and array of `Timestamp`s
      - Enums and array of enums
      - Maps, collections and array of objects (but objects inside them will still be converted if they are binary)

      For example, if you use `Integer` as a key and `Value` class as a value (which will be stored in binary format), you should acquire following projection to avoid deserialization:

           IgniteCache prj = cache.withKeepBinary();

           // Value is not deserialized and returned in binary format.
           BinaryObject po = prj.get(1);

      Note that this method makes sense only if cache is working in binary mode if default marshaller is used. If not, this method is no-op and will return current cache.

      Type Parameters:
        `V1` - Type of the cache value binary objects.
        `K1` - Type of the cache key.
      Returns:
        New cache instance for binary objects.

    - #### withAllowAtomicOpsInTx

          <K1,V1> IgniteCache<K1,V1> withAllowAtomicOpsInTx()

      If you want to use atomic operations inside transactions you should allow it before transaction start. To enable this behavior by default you can set system property `IGNITE_ALLOW_ATOMIC_OPS_IN_TX` to `true`.
      Type Parameters:
        `V1` - Type of the cache value.
        `K1` - Type of the cache key.
      Returns:
        Cache with atomic operations allowed in transactions.

    - #### loadCache

          @IgniteAsyncSupported
          void loadCache(@Nullable
                                               @Nullable IgniteBiPredicate<K,V> p,
                                               @Nullable
                                               Object... args)
                                        throws javax.cache.CacheException

      Executes `localLoadCache(IgniteBiPredicate, Object...)` on all cache nodes.
      Parameters:
        `p` - Optional predicate (may be `null`). If provided, will be used to filter values loaded from storage before they are put into cache.
        `args` - Optional user arguments to be passed into `CacheStore.loadCache(IgniteBiInClosure, Object...)` method.
      Throws:
        `javax.cache.CacheException` - If loading failed.

    - #### loadCacheAsync

          IgniteFuture<Void> loadCacheAsync(@Nullable
                                            @Nullable IgniteBiPredicate<K,V> p,
                                            @Nullable
                                            Object... args)
                                     throws javax.cache.CacheException

      Asynchronously executes `localLoadCache(IgniteBiPredicate, Object...)` on all cache nodes.
      Parameters:
        `p` - Optional predicate (may be `null`). If provided, will be used to filter values loaded from storage before they are put into cache.
        `args` - Optional user arguments to be passed into `CacheStore.loadCache(IgniteBiInClosure, Object...)` method.
      Returns:
        a Future representing pending completion of the cache loading.
      Throws:
        `javax.cache.CacheException` - If loading failed.

    - #### localLoadCache

          @IgniteAsyncSupported
          void localLoadCache(@Nullable
                                                    @Nullable IgniteBiPredicate<K,V> p,
                                                    @Nullable
                                                    Object... args)
                                             throws javax.cache.CacheException

      Delegates to `CacheStore.loadCache(IgniteBiInClosure,Object...)` method to load state from the underlying persistent storage. The loaded values will then be given to the optionally passed in predicate, and, if the predicate returns `true`, will be stored in cache. If predicate is `null`, then all loaded values will be stored in cache.

      Note that this method does not receive keys as a parameter, so it is up to `CacheStore` implementation to provide all the data to be loaded.

      This method is not transactional and may end up loading a stale value into cache if another thread has updated the value immediately after it has been loaded. It is mostly useful when pre-loading the cache from underlying data store before start, or for read-only caches.

      Parameters:
        `p` - Optional predicate (may be `null`). If provided, will be used to filter values to be put into cache.
        `args` - Optional user arguments to be passed into `CacheStore.loadCache(IgniteBiInClosure, Object...)` method.
      Throws:
        `javax.cache.CacheException` - If loading failed.

    - #### localLoadCacheAsync

          IgniteFuture<Void> localLoadCacheAsync(@Nullable
                                                 @Nullable IgniteBiPredicate<K,V> p,
                                                 @Nullable
                                                 Object... args)
                                          throws javax.cache.CacheException

      Asynchronously loads state from the underlying persistent storage by delegating to `CacheStore.loadCache(IgniteBiInClosure,Object...)` method. The loaded values will then be given to the optionally passed in predicate, and, if the predicate returns `true`, will be stored in cache. If predicate is `null`, then all loaded values will be stored in cache.

      Note that this method does not receive keys as a parameter, so it is up to `CacheStore` implementation to provide all the data to be loaded.

      This method is not transactional and may end up loading a stale value into cache if another thread has updated the value immediately after it has been loaded. It is mostly useful when pre-loading the cache from underlying data store before start, or for read-only caches.

      Parameters:
        `p` - Optional predicate (may be `null`). If provided, will be used to filter values to be put into cache.
        `args` - Optional user arguments to be passed into `CacheStore.loadCache(IgniteBiInClosure, Object...)` method.
      Returns:
        a Future representing pending completion of the cache loading.
      Throws:
        `javax.cache.CacheException` - If loading failed.

    - #### getAndPutIfAbsent

          @IgniteAsyncSupported
          V getAndPutIfAbsent(K key,
                                                    V val)
                                             throws javax.cache.CacheException,
                                                    TransactionException

      Stores given key-value pair in cache only if cache had no previous mapping for it. If cache previously contained value for the given key, then this value is returned. In case of `CacheMode.PARTITIONED` or `CacheMode.REPLICATED` caches, the value will be loaded from the primary node, which in its turn may load the value from the swap storage, and consecutively, if it's not in swap, from the underlying persistent storage. If value has to be loaded from persistent storage, `CacheLoader.load(Object)` method will be used.

      If the returned value is not needed, method `putIfAbsent(Object, Object)` should always be used instead of this one to avoid the overhead associated with returning of the previous value.

      If write-through is enabled, the stored value will be persisted to `CacheStore` via `CacheWriter.write(javax.cache.Cache.Entry)` method.

      ## Transactions

      This method is transactional and will enlist the entry into ongoing transaction if there is one.
      Parameters:
        `key` - Key to store in cache.
        `val` - Value to be associated with the given key.
      Returns:
        Previously contained value regardless of whether put happened or not (`null` if there was no previous value).
      Throws:
        `NullPointerException` - If either key or value are `null`.
        `javax.cache.CacheException` - If put operation failed.
        `TransactionException` - If operation within transaction is failed.

    - #### getAndPutIfAbsentAsync

          IgniteFuture<V> getAndPutIfAbsentAsync(K key,
                                                 V val)
                                          throws javax.cache.CacheException,
                                                 TransactionException

      Asynchronously stores given key-value pair in cache only if cache had no previous mapping for it. If cache previously contained value for the given key, then this value is returned. In case of `CacheMode.PARTITIONED` or `CacheMode.REPLICATED` caches, the value will be loaded from the primary node, which in its turn may load the value from the swap storage, and consecutively, if it's not in swap, from the underlying persistent storage. If value has to be loaded from persistent storage, `CacheLoader.load(Object)` method will be used.

      If the returned value is not needed, method `putIfAbsentAsync(Object, Object)` should always be used instead of this one to avoid the overhead associated with returning of the previous value.

      If write-through is enabled, the stored value will be persisted to `CacheStore` via `CacheWriter.write(javax.cache.Cache.Entry)` method.

      ## Transactions

      This method is transactional and will enlist the entry into ongoing transaction if there is one.
      Parameters:
        `key` - Key to store in cache.
        `val` - Value to be associated with the given key.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `NullPointerException` - If either key or value are `null`.
        `javax.cache.CacheException` - If put operation failed.
        `TransactionException` - If operation within transaction is failed.

    - #### lock

          Lock lock(K key)

      Creates a `Lock` instance associated with passed key. This method does not acquire lock immediately, you have to call appropriate method on returned instance. Returned lock does not support `Lock.newCondition()` method, other methods defined in `Lock` are supported.
      Parameters:
        `key` - Key for lock.
      Returns:
        New lock instance associated with passed key.
      See Also:
        `Lock.lock()`, `Lock.tryLock(long, TimeUnit)`

    - #### lockAll

          Lock lockAll(Collection<? extends K> keys)

      Deprecated. It is recommended to use `Ignite.reentrantLock(String, boolean, boolean, boolean)` instead. This method will be removed in future releases.
      Creates a `Lock` instance associated with passed keys. This method does not acquire lock immediately, you have to call appropriate method on returned instance. Returned lock does not support `Lock.newCondition()` method, other methods defined in `Lock` are supported.
      Parameters:
        `keys` - Keys for lock.
      Returns:
        New lock instance associated with passed key.
      See Also:
        `Lock.lock()`, `Lock.tryLock(long, TimeUnit)`

    - #### isLocalLocked

          boolean isLocalLocked(K key,
                                boolean byCurrThread)

      Checks if specified key is locked.

      This is a local in-VM operation and does not involve any network trips or access to persistent storage in any way.

      Parameters:
        `key` - Key to check.
        `byCurrThread` - If `true` method will check that current thread owns a lock on this key, otherwise will check that any thread on any node owns a lock on this key.
      Returns:
        `True` if lock is owned by some node.

    - #### query

          <R> QueryCursor<R> query(Query<R> qry)

      Queries cache. Accepts any subclass of `Query` interface. See also `query(SqlFieldsQuery)`.
      Type Parameters:
        `R` - Type of the query result.
      Parameters:
        `qry` - Query.
      Returns:
        Cursor.
      See Also:
        `ScanQuery`, `SqlFieldsQuery`, `TextQuery`, `SpiQuery`

    - #### query

          FieldsQueryCursor<List<?>> query(SqlFieldsQuery qry)

      Queries cache. Accepts `SqlFieldsQuery` class.
      Parameters:
        `qry` - SqlFieldsQuery.
      Returns:
        Cursor.
      See Also:
        `SqlFieldsQuery`

    - #### query

          <T,R> QueryCursor<R> query(Query<T> qry,
                                     IgniteClosure<T,R> transformer)

      Queries the cache transforming the entries on the server nodes. Can be used, for example, to avoid network overhead in case only one field out of the large is required by client.

      Currently transformers are supported ONLY for `ScanQuery`. Passing any other subclass of `Query` interface to this method will end up with `UnsupportedOperationException`.

      Type Parameters:
        `T` - Type of the initial query result.
        `R` - Type of the transformed query result.
      Parameters:
        `qry` - Query.
        `transformer` - Transformer.
      Returns:
        Cursor.

    - #### localEntries

          Iterable<javax.cache.Cache.Entry<K,V>> localEntries(CachePeekMode... peekModes)
                                                       throws javax.cache.CacheException

      Allows for iteration over local cache entries.
      Parameters:
        `peekModes` - Peek modes.
      Returns:
        Iterable over local cache entries.
      Throws:
        `javax.cache.CacheException` - If failed.

    - #### queryMetrics

          QueryMetrics queryMetrics()

      Gets query metrics.
      Returns:
        Metrics.

    - #### resetQueryMetrics

          void resetQueryMetrics()

      Reset query metrics.

    - #### queryDetailMetrics

          Collection<? extends QueryDetailMetrics> queryDetailMetrics()

      Gets query detail metrics. Query detail metrics could be enabled via `CacheConfiguration.setQueryDetailMetricsSize(int)` method.
      Returns:
        Metrics.

    - #### resetQueryDetailMetrics

          void resetQueryDetailMetrics()

      Reset query detail metrics.

    - #### localEvict

          void localEvict(Collection<? extends K> keys)

      Attempts to evict all entries associated with keys. Note, that entry will be evicted only if it's not used (not participating in any locks or transactions).
      Parameters:
        `keys` - Keys to evict.

    - #### localPeek

          V localPeek(K key,
                      CachePeekMode... peekModes)

      Peeks at a value in the local storage using an optional peek mode.

      This method will not load a value from the configured `CacheStore` or from a remote node.

      ## Transactions

      This method does not participate in any transactions.
      Parameters:
        `key` - Entry key.
        `peekModes` - Peek modes.
      Returns:
        Peeked value, or `null` if not found.
      Throws:
        `NullPointerException` - If key is `null`.

    - #### size

          @IgniteAsyncSupported
          int size(CachePeekMode... peekModes)
                                  throws javax.cache.CacheException

      Gets the number of all entries cached across all nodes. By default, if `peekModes` value isn't defined, only size of primary copies across all nodes will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.

      NOTE: this operation is distributed and will query all participating nodes for their cache sizes.

      Parameters:
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        Cache size across all nodes.
      Throws:
        `javax.cache.CacheException` - On error.

    - #### sizeAsync

          IgniteFuture<Integer> sizeAsync(CachePeekMode... peekModes)
                                   throws javax.cache.CacheException

      Asynchronously gets the number of all entries cached across all nodes. By default, if `peekModes` value isn't defined, only size of primary copies across all nodes will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.

      NOTE: this operation is distributed and will query all participating nodes for their cache sizes.

      Parameters:
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `javax.cache.CacheException` - On error.

    - #### sizeLong

          @IgniteAsyncSupported
          long sizeLong(CachePeekMode... peekModes)
                                       throws javax.cache.CacheException

      Gets the number of all entries cached across all nodes as a long value. By default, if `peekModes` value isn't defined, only size of primary copies across all nodes will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.

      NOTE: this operation is distributed and will query all participating nodes for their cache sizes.

      Parameters:
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        Cache size across all nodes.
      Throws:
        `javax.cache.CacheException` - On error.

    - #### sizeLongAsync

          IgniteFuture<Long> sizeLongAsync(CachePeekMode... peekModes)
                                    throws javax.cache.CacheException

      Asynchronously gets the number of all entries cached across all nodes as a long value. By default, if `peekModes` value isn't defined, only size of primary copies across all nodes will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.

      NOTE: this operation is distributed and will query all participating nodes for their cache sizes.

      Parameters:
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `javax.cache.CacheException` - On error.

    - #### sizeLong

          @IgniteAsyncSupported
          long sizeLong(int partition,
                                              CachePeekMode... peekModes)
                                       throws javax.cache.CacheException

      Gets the number of all entries cached in a partition as a long value. By default, if `peekModes` value isn't defined, only size of primary copies across all nodes will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.

      NOTE: this operation is distributed and will query all participating nodes for their partition cache sizes.

      Parameters:
        `partition` - partition.
        `peekModes` - Optional peek modes. If not provided, then total partition cache size is returned.
      Returns:
        Partition cache size across all nodes.
      Throws:
        `javax.cache.CacheException` - On error.

    - #### sizeLongAsync

          IgniteFuture<Long> sizeLongAsync(int partition,
                                           CachePeekMode... peekModes)
                                    throws javax.cache.CacheException

      Asynchronously gets the number of all entries cached in a partition as a long value. By default, if `peekModes` value isn't defined, only size of primary copies across all nodes will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.

      NOTE: this operation is distributed and will query all participating nodes for their partition cache sizes.

      Parameters:
        `partition` - partition.
        `peekModes` - Optional peek modes. If not provided, then total partition cache size is returned.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `javax.cache.CacheException` - On error.

    - #### localSize

          int localSize(CachePeekMode... peekModes)

      Gets the number of all entries cached on this node. By default, if `peekModes` value isn't defined, only size of primary copies will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.
      Parameters:
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        Cache size on this node.

    - #### localSizeLong

          long localSizeLong(CachePeekMode... peekModes)

      Gets the number of all entries cached on this node as a long value. By default, if `peekModes` value isn't defined, only size of primary copies will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.
      Parameters:
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        Cache size on this node.

    - #### localSizeLong

          long localSizeLong(int partition,
                             CachePeekMode... peekModes)

      Gets the number of all entries cached on this node for the partition as a long value. By default, if `peekModes` value isn't defined, only size of primary copies will be returned. This behavior is identical to calling this method with `CachePeekMode.PRIMARY` peek mode.
      Parameters:
        `partition` - partition.
        `peekModes` - Optional peek modes. If not provided, then total cache size is returned.
      Returns:
        Cache size on this node.

    - #### invokeAll

          @IgniteAsyncSupported
          <T> Map<K,javax.cache.processor.EntryProcessorResult<T>> invokeAll(Map<? extends K,? extends javax.cache.processor.EntryProcessor<K,V,T>> map,
                                                                                                   Object... args)
                                                                                            throws TransactionException

      Asynchronously invokes each `EntryProcessor` from map's values against the correspondent `Cache.Entry` specified by map's key set.

      If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key and a value of null is provided.

      The order that the entries for the keys are processed is undefined. Implementations may choose to process the entries in any order, including concurrently. Furthermore there is no guarantee implementations will use the same `EntryProcessor` instance to process each entry, as the case may be in a non-local cache topology.

      The result of executing the `EntryProcessor` is returned in the future as a `Map` of `EntryProcessorResult`s, one result per key. Should the `EntryProcessor` or Caching implementation throw an exception, the exception is wrapped and re-thrown when a call to `EntryProcessorResult.get()` is made.

      Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.

      Keys are locked in the order in which they appear in map. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeMap`. Using unordered map, such as `HashMap`, while calling this method in parallel will lead to deadlock.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `map` - Map containing keys and entry processors to be applied to values.
        `args` - Additional arguments to pass to the `EntryProcessor`.
      Returns:
        The map of `EntryProcessorResult`s of the processing per key, if any, defined by the `EntryProcessor` implementation. No mappings will be returned for `EntryProcessor`s that return a `null` value for a key.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### invokeAllAsync

          <T> IgniteFuture<Map<K,javax.cache.processor.EntryProcessorResult<T>>> invokeAllAsync(Map<? extends K,? extends javax.cache.processor.EntryProcessor<K,V,T>> map,
                                                                                                Object... args)
                                                                                         throws TransactionException

      Asynchronous version of the `invokeAll(Map, Object...)` method.
      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `map` - Map containing keys and entry processors to be applied to values.
        `args` - Additional arguments to pass to the `EntryProcessor`.
      Returns:
        a Future representing pending completion of the operation. See more about future result at the `invokeAll(Map, Object...)`.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### get

          @IgniteAsyncSupported
          V get(K key)
                               throws TransactionException

      Specified by:
        `get` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAsync

          IgniteFuture<V> getAsync(K key)

      Asynchronously gets an entry from the cache.

      If the cache is configured to use read-through, and a future result would be null because the entry is missing from the cache, the Cache's `CacheLoader` is called in an attempt to load the entry.

      Parameters:
        `key` - Key.
      Returns:
        a Future representing pending completion of the operation.

    - #### getEntry

          @IgniteAsyncSupported
          CacheEntry<K,V> getEntry(K key)
                                                  throws TransactionException

      Gets an entry from the cache.

      If the cache is configured to use read-through, and get would return null because the entry is missing from the cache, the Cache's `CacheLoader` is called in an attempt to load the entry.

      Parameters:
        `key` - The key whose associated value is to be returned.
      Returns:
        The element, or null, if it does not exist.
      Throws:
        `IllegalStateException` - If the cache is `Cache.isClosed()`.
        `NullPointerException` - If the key is `null`.
        `javax.cache.CacheException` - If there is a problem fetching the value.
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `TransactionException` - If operation within transaction is failed.

    - #### getEntryAsync

          IgniteFuture<CacheEntry<K,V>> getEntryAsync(K key)
                                               throws TransactionException

      Asynchronously gets an entry from the cache.

      If the cache is configured to use read-through, and a future result would be null because the entry is missing from the cache, the Cache's `CacheLoader` is called in an attempt to load the entry.

      Parameters:
        `key` - The key whose associated value is to be returned.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `IllegalStateException` - If the cache is `Cache.isClosed()`.
        `NullPointerException` - If the key is `null`.
        `javax.cache.CacheException` - If there is a problem fetching the value.
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `TransactionException` - If operation within transaction is failed.

    - #### getAll

          @IgniteAsyncSupported
          Map<K,V> getAll(Set<? extends K> keys)
                                         throws TransactionException

      Specified by:
        `getAll` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAllAsync

          IgniteFuture<Map<K,V>> getAllAsync(Set<? extends K> keys)
                                      throws TransactionException

      Asynchronously gets a collection of entries from the `Cache`, returning them as `Map` of the values associated with the set of keys requested.

      If the cache is configured read-through, and a future result for a key would be null because an entry is missing from the cache, the Cache's `CacheLoader` is called in an attempt to load the entry. If an entry cannot be loaded for a given key, the key will not be present in the returned Map.

      Parameters:
        `keys` - Keys set.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getEntries

          @IgniteAsyncSupported
          Collection<CacheEntry<K,V>> getEntries(Set<? extends K> keys)
                                                                throws TransactionException

      Gets a collection of entries from the `Cache`.

      If the cache is configured read-through, and a get for a key would return null because an entry is missing from the cache, the Cache's `CacheLoader` is called in an attempt to load the entry. If an entry cannot be loaded for a given key, the key will not be present in the returned Collection.

      Parameters:
        `keys` - The keys whose associated values are to be returned.
      Returns:
        A collection of entries that were found for the given keys. Entries not found in the cache are not in the returned collection.
      Throws:
        `NullPointerException` - If keys is null or if keys contains a `null`.
        `IllegalStateException` - If the cache is `Cache.isClosed()`.
        `javax.cache.CacheException` - If there is a problem fetching the values.
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `TransactionException` - If operation within transaction is failed.

    - #### getEntriesAsync

          IgniteFuture<Collection<CacheEntry<K,V>>> getEntriesAsync(Set<? extends K> keys)
                                                             throws TransactionException

      Asynchronously gets a collection of entries from the `Cache`.

      If the cache is configured read-through, and a future result for a key would be null because an entry is missing from the cache, the Cache's `CacheLoader` is called in an attempt to load the entry. If an entry cannot be loaded for a given key, the key will not be present in the returned Collection.

      Parameters:
        `keys` - The keys whose associated values are to be returned.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `NullPointerException` - If keys is null or if keys contains a `null`.
        `IllegalStateException` - If the cache is `Cache.isClosed()`.
        `javax.cache.CacheException` - If there is a problem fetching the values.
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `TransactionException` - If operation within transaction is failed.

    - #### getAllOutTx

          @IgniteAsyncSupported
          Map<K,V> getAllOutTx(Set<? extends K> keys)

      Gets values from cache. Will bypass started transaction, if any, i.e. will not enlist entries and will not lock any keys if pessimistic transaction is started by thread.
      Parameters:
        `keys` - The keys whose associated values are to be returned.
      Returns:
        A map of entries that were found for the given keys.

    - #### getAllOutTxAsync

          IgniteFuture<Map<K,V>> getAllOutTxAsync(Set<? extends K> keys)

      Asynchronously gets values from cache. Will bypass started transaction, if any, i.e. will not enlist entries and will not lock any keys if pessimistic transaction is started by thread.
      Parameters:
        `keys` - The keys whose associated values are to be returned.
      Returns:
        a Future representing pending completion of the operation.

    - #### containsKey

          @IgniteAsyncSupported
          boolean containsKey(K key)
                                             throws TransactionException

      Specified by:
        `containsKey` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### containsKeyAsync

          IgniteFuture<Boolean> containsKeyAsync(K key)
                                          throws TransactionException

      Asynchronously determines if the `Cache` contains an entry for the specified key.

      More formally, future result is `true` if and only if this cache contains a mapping for a key `k` such that `key.equals(k)`. (There can be at most one such mapping.)

      Parameters:
        `key` - Key.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### containsKeys

          @IgniteAsyncSupported
          boolean containsKeys(Set<? extends K> keys)
                                              throws TransactionException

      Determines if the `Cache` contains entries for the specified keys.
      Parameters:
        `keys` - Key whose presence in this cache is to be tested.
      Returns:
        `True` if this cache contains a mapping for the specified keys.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### containsKeysAsync

          IgniteFuture<Boolean> containsKeysAsync(Set<? extends K> keys)
                                           throws TransactionException

      Asynchronously determines if the `Cache` contains entries for the specified keys.
      Parameters:
        `keys` - Key whose presence in this cache is to be tested.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### put

          @IgniteAsyncSupported
          void put(K key,
                                         V val)
                                  throws TransactionException

      Specified by:
        `put` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### putAsync

          IgniteFuture<Void> putAsync(K key,
                                      V val)
                               throws TransactionException

      Asynchronously associates the specified value with the specified key in the cache.

      If the `Cache` previously contained a mapping for the key, the old value is replaced by the specified value. (A cache `c` is said to contain a mapping for a key `k` if and only if `c.containsKey(k)` would return `true`.)

      Parameters:
        `key` - Key.
        `val` - Value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAndPut

          @IgniteAsyncSupported
          V getAndPut(K key,
                                            V val)
                                     throws TransactionException

      Specified by:
        `getAndPut` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAndPutAsync

          IgniteFuture<V> getAndPutAsync(K key,
                                         V val)
                                  throws TransactionException

      Asynchronously associates the specified value with the specified key in this cache, returning an existing value if one existed as the future result.

      If the cache previously contained a mapping for the key, the old value is replaced by the specified value. (A cache `c` is said to contain a mapping for a key `k` if and only if `c.containsKey(k)` would return `true`.)

      The previous value is returned as the future result, or future result is null if there was no value associated with the key previously.

      Parameters:
        `key` - Key.
        `val` - Value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### putAll

          @IgniteAsyncSupported
          void putAll(Map<? extends K,? extends V> map)
                                     throws TransactionException

      Keys are locked in the order in which they appear in map. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeMap`. Using unordered map, such as `HashMap`, while calling this method in parallel will lead to deadlock.

      Specified by:
        `putAll` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### putAllAsync

          IgniteFuture<Void> putAllAsync(Map<? extends K,? extends V> map)
                                  throws TransactionException

      Asynchronously copies all of the entries from the specified map to the `Cache`.

      The effect of this call is equivalent to that of calling `putAsync(Object, Object)` putAsync(k, v)} on this cache once for each mapping from key `k` to value `v` in the specified map.

      The order in which the individual puts occur is undefined.

      The behavior of this operation is undefined if entries in the cache corresponding to entries in the map are modified or removed while this operation is in progress. or if map is modified while the operation is in progress.

      In Default Consistency mode, individual puts occur atomically but not the entire putAll. Listeners may observe individual updates.

      Keys are locked in the order in which they appear in map. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeMap`. Using unordered map, such as `HashMap`, while calling this method in parallel will lead to deadlock.

      Parameters:
        `map` - Map containing keys and values to put into the cache.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### putIfAbsent

          @IgniteAsyncSupported
          boolean putIfAbsent(K key,
                                                    V val)
                                             throws TransactionException

      For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries. It is recommended to disable retries with `withNoRetries()` and manually restore primary-backup consistency in case of update failure.

      Specified by:
        `putIfAbsent` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### putIfAbsentAsync

          IgniteFuture<Boolean> putIfAbsentAsync(K key,
                                                 V val)

      Asynchronously associates the specified key with the given value if it is not already associated with a value.

      For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries. It is recommended to disable retries with `withNoRetries()` and manually restore primary-backup consistency in case of update failure.

      Parameters:
        `key` - Key.
        `val` - Value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionTimeoutException` - If operation performs within transaction and timeout occurred.
        `TransactionRollbackException` - If operation performs within transaction that automatically rolled back.
        `TransactionHeuristicException` - If operation performs within transaction that entered an unknown state.

    - #### remove

          @IgniteAsyncSupported
          boolean remove(K key)
                                        throws TransactionException

      Specified by:
        `remove` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### removeAsync

          IgniteFuture<Boolean> removeAsync(K key)
                                     throws TransactionException

      Asynchronously removes the mapping for a key from this cache if it is present.

      More formally, if this cache contains a mapping from key `k` to value `v` such that `(key==null ? k==null : key.equals(k))`, that mapping is removed. (The cache can contain at most one such mapping.)

      A future result is `true` if this cache previously associated the key, or `false` if the cache contained no mapping for the key.

      The cache will not contain a mapping for the specified key once the returned future is completed.

      Parameters:
        `key` - Key.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### remove

          @IgniteAsyncSupported
          boolean remove(K key,
                                               V oldVal)
                                        throws TransactionException

      For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries. It is recommended to disable retries with `withNoRetries()` and manually restore primary-backup consistency in case of update failure.

      Specified by:
        `remove` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### removeAsync

          IgniteFuture<Boolean> removeAsync(K key,
                                            V oldVal)
                                     throws TransactionException

      Asynchronously removes the mapping for a key only if currently mapped to the given value.

      For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries. It is recommended to disable retries with `withNoRetries()` and manually restore primary-backup consistency in case of update failure.

      Parameters:
        `key` - Key.
        `oldVal` - Old value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAndRemove

          @IgniteAsyncSupported
          V getAndRemove(K key)
                                        throws TransactionException

      Specified by:
        `getAndRemove` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAndRemoveAsync

          IgniteFuture<V> getAndRemoveAsync(K key)
                                     throws TransactionException

      Asynchronously removes the entry for a key only if currently mapped to some value.
      Parameters:
        `key` - Key.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### replace

          @IgniteAsyncSupported
          boolean replace(K key,
                                                V oldVal,
                                                V newVal)
                                         throws TransactionException

      For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries. It is recommended to disable retries with `withNoRetries()` and manually restore primary-backup consistency in case of update failure.

      Specified by:
        `replace` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### replaceAsync

          IgniteFuture<Boolean> replaceAsync(K key,
                                             V oldVal,
                                             V newVal)
                                      throws TransactionException

      Asynchronous version of the `replace(Object, Object, Object)`.

      For `CacheAtomicityMode.ATOMIC` return value on primary node crash may be incorrect because of the automatic retries. It is recommended to disable retries with `withNoRetries()` and manually restore primary-backup consistency in case of update failure.

      Parameters:
        `key` - Key.
        `oldVal` - Old value.
        `newVal` - New value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### replace

          @IgniteAsyncSupported
          boolean replace(K key,
                                                V val)
                                         throws TransactionException

      Specified by:
        `replace` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### replaceAsync

          IgniteFuture<Boolean> replaceAsync(K key,
                                             V val)
                                      throws TransactionException

      Asynchronously replaces the entry for a key only if currently mapped to a given value.
      Parameters:
        `key` - Key.
        `val` - Value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAndReplace

          @IgniteAsyncSupported
          V getAndReplace(K key,
                                                V val)
                                         throws TransactionException

      Specified by:
        `getAndReplace` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### getAndReplaceAsync

          IgniteFuture<V> getAndReplaceAsync(K key,
                                             V val)

      Asynchronously replaces the value for a given key if and only if there is a value currently mapped by the key.
      Parameters:
        `key` - Key.
        `val` - Value.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionTimeoutException` - If operation performs within transaction and timeout occurred.
        `TransactionRollbackException` - If operation performs within transaction that automatically rolled back.
        `TransactionHeuristicException` - If operation performs within transaction that entered an unknown state.

    - #### removeAll

          @IgniteAsyncSupported
          void removeAll(Set<? extends K> keys)
                                        throws TransactionException

      Keys are locked in the order in which they appear in key set. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeSet`. Using unordered map, such as `HashSet`, while calling this method in parallel will lead to deadlock.

      Specified by:
        `removeAll` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### removeAllAsync

          IgniteFuture<Void> removeAllAsync(Set<? extends K> keys)
                                     throws TransactionException

      Asynchronously removes entries for the specified keys.

      The order in which the individual entries are removed is undefined.

      For every entry in the key set, the following are called:

      - any registered `CacheEntryRemovedListener`s
      - if the cache is a write-through cache, the `CacheWriter`
      If the key set is empty, the `CacheWriter` is not called.

      Keys are locked in the order in which they appear in key set. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeSet`. Using unordered map, such as `HashSet`, while calling this method in parallel will lead to deadlock.

      Parameters:
        `keys` - Keys set.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### removeAll

          @IgniteAsyncSupported
          void removeAll()

      Removes all of the mappings from this cache.

      The order that the individual entries are removed is undefined.

      For every mapping that exists the following are called:

      - any registered `CacheEntryRemovedListener`s
      - if the cache is a write-through cache, the `CacheWriter`
      If the cache is empty, the `CacheWriter` is not called.

      This operation is not transactional. It calls broadcast closure that deletes all primary keys from remote nodes.

      This is potentially an expensive operation as listeners are invoked. Use `clear()` to avoid this.

      Specified by:
        `removeAll` in interface `javax.cache.Cache<K,V>`
      Throws:
        `IllegalStateException` - if the cache is `Cache.isClosed()`
        `javax.cache.CacheException` - if there is a problem during the remove
      See Also:
        `clear()`, `CacheWriter.deleteAll(java.util.Collection<?>)`

    - #### removeAllAsync

          IgniteFuture<Void> removeAllAsync()

      Asynchronously removes all of the mappings from this cache.

      The order that the individual entries are removed is undefined.

      For every mapping that exists the following are called:

      - any registered `CacheEntryRemovedListener`s
      - if the cache is a write-through cache, the `CacheWriter`
      If the cache is empty, the `CacheWriter` is not called.

      This is potentially an expensive operation as listeners are invoked. Use `clearAsync()` to avoid this.

      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `IllegalStateException` - if the cache is `Cache.isClosed()`
        `javax.cache.CacheException` - if there is a problem during the remove
      See Also:
        `clearAsync()`, `CacheWriter.deleteAll(java.util.Collection<?>)`

    - #### clear

          @IgniteAsyncSupported
          void clear()

      Specified by:
        `clear` in interface `javax.cache.Cache<K,V>`

    - #### clearAsync

          IgniteFuture<Void> clearAsync()

      Asynchronously clears the contents of the cache, without notifying listeners or `CacheWriter`s.
      Returns:
        a Future representing pending completion of the operation.

    - #### clear

          @IgniteAsyncSupported
          void clear(K key)

      Clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s. Entry is cleared only if it is not currently locked, and is not participating in a transaction.
      Parameters:
        `key` - Key to clear.
      Throws:
        `IllegalStateException` - if the cache is `Cache.isClosed()`
        `javax.cache.CacheException` - if there is a problem during the clear

    - #### clearAsync

          IgniteFuture<Void> clearAsync(K key)

      Asynchronously clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s. Entry is cleared only if it is not currently locked, and is not participating in a transaction.
      Parameters:
        `key` - Key to clear.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `IllegalStateException` - if the cache is `Cache.isClosed()`
        `javax.cache.CacheException` - if there is a problem during the clear

    - #### clearAll

          @IgniteAsyncSupported
          void clearAll(Set<? extends K> keys)

      Clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s. Entry is cleared only if it is not currently locked, and is not participating in a transaction.
      Parameters:
        `keys` - Keys to clear.
      Throws:
        `IllegalStateException` - if the cache is `Cache.isClosed()`
        `javax.cache.CacheException` - if there is a problem during the clear

    - #### clearAllAsync

          IgniteFuture<Void> clearAllAsync(Set<? extends K> keys)

      Asynchronously clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s. Entry is cleared only if it is not currently locked, and is not participating in a transaction.
      Parameters:
        `keys` - Keys to clear.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `IllegalStateException` - if the cache is `Cache.isClosed()`
        `javax.cache.CacheException` - if there is a problem during the clear

    - #### localClear

          void localClear(K key)

      Clears entry from the cache and swap storage, without notifying listeners or `CacheWriter`s. Entry is cleared only if it is not currently locked, and is not participating in a transaction.

      Note that this operation is local as it merely clears an entry from local cache, it does not remove entries from remote caches.
      Parameters:
        `key` - Key to clear.

    - #### localClearAll

          void localClearAll(Set<? extends K> keys)

      Clears entries from the cache and swap storage, without notifying listeners or `CacheWriter`s. Entry is cleared only if it is not currently locked, and is not participating in a transaction.

      Note that this operation is local as it merely clears an entry from local cache, it does not remove entries from remote caches.
      Parameters:
        `keys` - Keys to clear.

    - #### invoke

          @IgniteAsyncSupported
          <T> T invoke(K key,
                                             javax.cache.processor.EntryProcessor<K,V,T> entryProcessor,
                                             Object... arguments)
                                      throws TransactionException

      Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.

      Specified by:
        `invoke` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### invokeAsync

          <T> IgniteFuture<T> invokeAsync(K key,
                                          javax.cache.processor.EntryProcessor<K,V,T> entryProcessor,
                                          Object... arguments)
                                   throws TransactionException

      Asynchronously invokes an `EntryProcessor` against the `Cache.Entry` specified by the provided key. If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key with a null value is used instead.

      Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `key` - The key to the entry.
        `entryProcessor` - The `EntryProcessor` to invoke.
        `arguments` - Additional arguments to pass to the `EntryProcessor`.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### invoke

          @IgniteAsyncSupported
          <T> T invoke(K key,
                                             CacheEntryProcessor<K,V,T> entryProcessor,
                                             Object... arguments)
                                      throws TransactionException

      Invokes an `CacheEntryProcessor` against the `Cache.Entry` specified by the provided key. If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key with a null value is used instead.

      An instance of entry processor must be stateless as it may be invoked multiple times on primary and backup nodes in the cache. It is guaranteed that the value passed to the entry processor will be always the same.

      Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `key` - The key to the entry.
        `entryProcessor` - The `CacheEntryProcessor` to invoke.
        `arguments` - Additional arguments to pass to the `CacheEntryProcessor`.
      Returns:
        The result of the processing, if any, defined by the `CacheEntryProcessor` implementation.
      Throws:
        `NullPointerException` - If key or `CacheEntryProcessor` is null
        `IllegalStateException` - If the cache is `Cache.isClosed()`
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `javax.cache.processor.EntryProcessorException` - If an exception is thrown by the `CacheEntryProcessor`, a Caching Implementation must wrap any `Exception` thrown wrapped in an `EntryProcessorException`.
        `TransactionException` - If operation within transaction is failed.
      See Also:
        `CacheEntryProcessor`

    - #### invokeAsync

          <T> IgniteFuture<T> invokeAsync(K key,
                                          CacheEntryProcessor<K,V,T> entryProcessor,
                                          Object... arguments)
                                   throws TransactionException

      Asynchronously invokes an `CacheEntryProcessor` against the `Cache.Entry` specified by the provided key. If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key with a null value is used instead.

      An instance of entry processor must be stateless as it may be invoked multiple times on primary and backup nodes in the cache. It is guaranteed that the value passed to the entry processor will be always the same.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `key` - The key to the entry.
        `entryProcessor` - The `CacheEntryProcessor` to invoke.
        `arguments` - Additional arguments to pass to the `CacheEntryProcessor`.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `NullPointerException` - If key or `CacheEntryProcessor` is null
        `IllegalStateException` - If the cache is `Cache.isClosed()`
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `javax.cache.processor.EntryProcessorException` - If an exception is thrown by the `CacheEntryProcessor`, a Caching Implementation must wrap any `Exception` thrown wrapped in an `EntryProcessorException`.
        `TransactionException` - If operation within transaction is failed.
      See Also:
        `CacheEntryProcessor`

    - #### invokeAll

          @IgniteAsyncSupported
          <T> Map<K,javax.cache.processor.EntryProcessorResult<T>> invokeAll(Set<? extends K> keys,
                                                                                                   javax.cache.processor.EntryProcessor<K,V,T> entryProcessor,
                                                                                                   Object... args)
                                                                                            throws TransactionException

      Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.

      Keys are locked in the order in which they appear in key set. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeSet`. Using unordered map, such as `HashSet`, while calling this method in parallel will lead to deadlock.

      Specified by:
        `invokeAll` in interface `javax.cache.Cache<K,V>`
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### invokeAllAsync

          <T> IgniteFuture<Map<K,javax.cache.processor.EntryProcessorResult<T>>> invokeAllAsync(Set<? extends K> keys,
                                                                                                javax.cache.processor.EntryProcessor<K,V,T> entryProcessor,
                                                                                                Object... args)
                                                                                         throws TransactionException

      Asynchronously invokes an `EntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.

      If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key and a value of null is provided.

      The order that the entries for the keys are processed is undefined. Implementations may choose to process the entries in any order, including concurrently. Furthermore there is no guarantee implementations will use the same `EntryProcessor` instance to process each entry, as the case may be in a non-local cache topology.

      The result of executing the `EntryProcessor` is returned in the future as a `Map` of `EntryProcessorResult`s, one result per key. Should the `EntryProcessor` or Caching implementation throw an exception, the exception is wrapped and re-thrown when a call to `EntryProcessorResult.get()` is made.

      Please refer to documentation for `CacheAtomicityMode.ATOMIC` for information on system behavior in crash scenarios for atomic caches.

      Keys are locked in the order in which they appear in key set. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeSet`. Using unordered map, such as `HashSet`, while calling this method in parallel will lead to deadlock.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `keys` - The set of keys.
        `entryProcessor` - The `EntryProcessor` to invoke.
        `args` - Additional arguments to pass to the `EntryProcessor`.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `TransactionException` - If operation within transaction is failed.

    - #### invokeAll

          @IgniteAsyncSupported
          <T> Map<K,javax.cache.processor.EntryProcessorResult<T>> invokeAll(Set<? extends K> keys,
                                                                                                   CacheEntryProcessor<K,V,T> entryProcessor,
                                                                                                   Object... args)
                                                                                            throws TransactionException

      Invokes an `CacheEntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.

      If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key and a value of null is provided.

      The order that the entries for the keys are processed is undefined. Implementations may choose to process the entries in any order, including concurrently. Furthermore there is no guarantee implementations will use the same `CacheEntryProcessor` instance to process each entry, as the case may be in a non-local cache topology.

      The result of executing the `CacheEntryProcessor` is returned as a `Map` of `EntryProcessorResult`s, one result per key. Should the `CacheEntryProcessor` or Caching implementation throw an exception, the exception is wrapped and re-thrown when a call to `EntryProcessorResult.get()` is made.

      An instance of entry processor must be stateless as it may be invoked multiple times on primary and backup nodes in the cache. It is guaranteed that the value passed to the entry processor will be always the same.

      Keys are locked in the order in which they appear in key set. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeSet`. Using unordered map, such as `HashSet`, while calling this method in parallel will lead to deadlock.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `keys` - The set of keys for entries to process.
        `entryProcessor` - The `CacheEntryProcessor` to invoke.
        `args` - Additional arguments to pass to the `CacheEntryProcessor`.
      Returns:
        The map of `EntryProcessorResult`s of the processing per key, if any, defined by the `CacheEntryProcessor` implementation. No mappings will be returned for `CacheEntryProcessor`s that return a `null` value for a key.
      Throws:
        `NullPointerException` - If keys or `CacheEntryProcessor` are {#code null}.
        `IllegalStateException` - If the cache is `Cache.isClosed()`.
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `TransactionException` - If operation within transaction is failed.
      See Also:
        `CacheEntryProcessor`

    - #### invokeAllAsync

          <T> IgniteFuture<Map<K,javax.cache.processor.EntryProcessorResult<T>>> invokeAllAsync(Set<? extends K> keys,
                                                                                                CacheEntryProcessor<K,V,T> entryProcessor,
                                                                                                Object... args)
                                                                                         throws TransactionException

      Asynchronously invokes an `CacheEntryProcessor` against the set of `Cache.Entry`s specified by the set of keys.

      If an `Cache.Entry` does not exist for the specified key, an attempt is made to load it (if a loader is configured) or a surrogate `Cache.Entry`, consisting of the key and a value of null is provided.

      The order that the entries for the keys are processed is undefined. Implementations may choose to process the entries in any order, including concurrently. Furthermore there is no guarantee implementations will use the same `CacheEntryProcessor` instance to process each entry, as the case may be in a non-local cache topology.

      The result of executing the `CacheEntryProcessor` is returned in the future as a `Map` of `EntryProcessorResult`s, one result per key. Should the `CacheEntryProcessor` or Caching implementation throw an exception, the exception is wrapped and re-thrown when a call to `EntryProcessorResult.get()` is made.

      An instance of entry processor must be stateless as it may be invoked multiple times on primary and backup nodes in the cache. It is guaranteed that the value passed to the entry processor will be always the same.

      Keys are locked in the order in which they appear in key set. It is caller's responsibility to make sure keys always follow same order, such as by using `TreeSet`. Using unordered map, such as `HashSet`, while calling this method in parallel will lead to deadlock.

      Type Parameters:
        `T` - Type of the cache entry processing result.
      Parameters:
        `keys` - The set of keys for entries to process.
        `entryProcessor` - The `CacheEntryProcessor` to invoke.
        `args` - Additional arguments to pass to the `CacheEntryProcessor`.
      Returns:
        a Future representing pending completion of the operation.
      Throws:
        `NullPointerException` - If keys or `CacheEntryProcessor` are {#code null}.
        `IllegalStateException` - If the cache is `Cache.isClosed()`.
        `ClassCastException` - If the implementation is configured to perform runtime-type-checking, and the key or value types are incompatible with those that have been configured for the `Cache`.
        `TransactionException` - If operation within transaction is failed.
      See Also:
        `CacheEntryProcessor`

    - #### close

          void close()

      Closes this cache instance.

      For local cache equivalent to `destroy()`. For distributed caches, if called on clients, stops client cache, if called on a server node, just closes this cache instance and does not destroy cache data.

      After cache instance is closed another `IgniteCache` instance for the same cache can be created using `Ignite.cache(String)` method.

      Specified by:
        `close` in interface `AutoCloseable`
      Specified by:
        `close` in interface `javax.cache.Cache<K,V>`
      Specified by:
        `close` in interface `Closeable`

    - #### destroy

          void destroy()

      Completely deletes the cache with all its data from the system on all cluster nodes.

    - #### rebalance

          @Deprecated
          IgniteFuture<Boolean> rebalance()

      Deprecated. Use baseline topology feature instead. Please, be aware this API will be removed in the next releases.
      This cache node to re-balance its partitions. This method is usually used when `CacheConfiguration.getRebalanceDelay()` configuration parameter has non-zero value. When many nodes are started or stopped almost concurrently, it is more efficient to delay rebalancing until the node topology is stable to make sure that no redundant re-partitioning happens.

      In case of`CacheMode.PARTITIONED` caches, for better efficiency user should usually make sure that new nodes get placed on the same place of consistent hash ring as the left nodes, and that nodes are restarted before `rebalanceDelay` expires. To place nodes on the same place in consistent hash ring, use `IgniteConfiguration.setConsistentId(Serializable)` to make sure that a node maps to the same hash ID if re-started.

      See `CacheConfiguration.getRebalanceDelay()` for more information on how to configure rebalance re-partition delay.

      Returns:
        Future that will be completed when rebalancing is finished. Future.get() returns `true` when rebalance was successfully finished.

    - #### indexReadyFuture

          IgniteFuture<?> indexReadyFuture()

      Returns future that will be completed when all indexes for this cache are ready to use.
      Returns:
        Future.

    - #### metrics

          CacheMetrics metrics()

      Gets whole cluster snapshot metrics (statistics) for this cache.
      Returns:
        Cache metrics.

    - #### metrics

          CacheMetrics metrics(ClusterGroup grp)

      Gets cluster group snapshot metrics for caches in cluster group.
      Parameters:
        `grp` - Cluster group.
      Returns:
        Cache metrics.

    - #### localMetrics

          CacheMetrics localMetrics()

      Gets local snapshot metrics (statistics) for this cache.
      Returns:
        Cache metrics.

    - #### lostPartitions

          Collection<Integer> lostPartitions()

      Gets a collection of lost partition IDs. This method provides a facility for fine-tuned handling of lost partitions. Once all lost partitions are considered recovered (for example, after the previously failed primary and backup nodes, that stored partition data in Ignite persistence, are booted) `Ignite.resetLostPartitions(Collection)` can used in order to clear `lost` flag making all partitions fully operational.
      Returns:
        Lost partitions.
      See Also:
        `PartitionLossPolicy`, `EventType.EVT_CACHE_REBALANCE_PART_DATA_LOST`, `Ignite.resetLostPartitions(Collection)`

    - #### enableStatistics

          void enableStatistics(boolean enabled)

      Sets statistics enabled flag cluster wide for this cache.
      Parameters:
        `enabled` - Statistics enabled flag.

    - #### clearStatistics

          void clearStatistics()

      Clear cluster statistics for this cache.

    - #### preloadPartition

          void preloadPartition(int partition)

      Efficiently preloads cache primary partition into page memory.

      This is useful for fast iteration over cache partition data if persistence is enabled and the data is "cold".

      Preload will reduce available amount of page memory for subsequent operations and may lead to earlier page replacement.

      This method is irrelevant for in-memory caches. Calling this method on an in-memory cache will result in exception.

      Parameters:
        `partition` - Partition.

    - #### preloadPartitionAsync

          IgniteFuture<Void> preloadPartitionAsync(int partition)

      Efficiently preloads cache partition into page memory.

      This is useful for fast iteration over cache partition data if persistence is enabled and the data is "cold".

      Preload will reduce available amount of page memory for subsequent operations and may lead to earlier page replacement.

      This method is irrelevant for in-memory caches. Calling this method on an in-memory cache will result in exception.

      Parameters:
        `partition` - Partition.
      Returns:
        A future representing pending completion of the partition preloading.

    - #### localPreloadPartition

          boolean localPreloadPartition(int partition)

      Efficiently preloads cache partition into page memory if it exists on the local node.

      This is useful for fast iteration over cache partition data if persistence is enabled and the data is "cold".

      Preload will reduce available amount of page memory for subsequent operations and may lead to earlier page replacement.

      This method is irrelevant for in-memory caches. Calling this method on an in-memory cache will result in exception.

      Parameters:
        `partition` - Partition.
      Returns:
        `True` if partition was preloaded, `false` if it doesn't belong to local node.

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Ignite Database and Caching Platform | : ver. 2.15.0
Release Date | : April 25 2023