org.apache.ignite.ml.math.impls.storage.matrix

Class BlockVectorStorage

java.lang.Object

org.apache.ignite.ml.math.distributed.CacheUtils

org.apache.ignite.ml.math.impls.storage.matrix.BlockVectorStorage

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, DistributedStorage<VectorBlockKey>, StorageConstants, StorageOpsMetrics, VectorStorage

public class BlockVectorStorage
extends CacheUtils
implements VectorStorage, StorageConstants, DistributedStorage<VectorBlockKey>

Storage for SparseBlockDistributedVector.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.ignite.ml.math.distributed.CacheUtils

CacheUtils.CacheEntry<K,V>

Field Summary

Fields inherited from interface org.apache.ignite.ml.math.StorageConstants

COLUMN_STORAGE_MODE, RANDOM_ACCESS_MODE, ROW_STORAGE_MODE, SEQUENTIAL_ACCESS_MODE, UNKNOWN_STORAGE_MODE

Constructor Summary

Constructors

Constructor and Description
BlockVectorStorage()
BlockVectorStorage(int size)

Method Summary

Modifier and Type	Method and Description
IgniteCache<VectorBlockKey,VectorBlockEntry>	cache()
String	cacheName()
double[]	data() Avoid this method for large vectors
void	destroy() Delete all data from cache.
boolean	equals(Object obj)
double	get(int x)
Set<VectorBlockKey>	getAllKeys() Build a keyset for this storage.
VectorBlockKey	getCacheKey(long blockId) Build the cache key for the given blocks id.
List<VectorBlockEntry>	getColForBlock(long blockId) Get column for current block.
UUID	getUUID() Get storage UUID.
int	hashCode()
boolean	isArrayBased() Checks if implementation is based on Java arrays.
boolean	isDense() Checks if this implementation should be considered dense so that it explicitly represents every value.
boolean	isDistributed() Checks whether implementation is JVM-local or distributed (multi-JVM).
boolean	isRandomAccess() Checks if this implementation is optimized for random access.
boolean	isSequentialAccess() Checks if this implementation should be considered to be iterable in index order in an efficient way.
void	readExternal(ObjectInput in)
void	set(int x, double v)
int	size()
void	writeExternal(ObjectOutput out)

Methods inherited from class org.apache.ignite.ml.math.distributed.CacheUtils

bcast, bcast, bcast, bcast, distributedFold, fold, fold, foreach, getClusterGroupForGivenKey, ignite, map, max, min, reduce, reduce, sparseMap, sparseMapForVector, sparseMax, sparseMin, sparseSum, sum, update, update

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.ignite.ml.math.StorageConstants

assertAccessMode, assertStorageMode

Constructor Detail

BlockVectorStorage

public BlockVectorStorage()

BlockVectorStorage

public BlockVectorStorage(int size)

Parameters:

size - Amount of columns in the vector.

Method Detail

cache

public IgniteCache<VectorBlockKey,VectorBlockEntry> cache()

get

public double get(int x)

Specified by:

get in interface VectorStorage

Parameters:

x - Vector element index.

Returns:

Value obtained for given element index.

set

public void set(int x,
                double v)

Specified by:

set in interface VectorStorage

Parameters:

x - Vector element index.

v - Value to set at given index.

size

public int size()

Specified by:

size in interface VectorStorage

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

isSequentialAccess

public boolean isSequentialAccess()

Checks if this implementation should be considered to be iterable in index order in an efficient way.

Specified by:

isSequentialAccess in interface StorageOpsMetrics

isDense

public boolean isDense()

Checks if this implementation should be considered dense so that it explicitly represents every value.

Specified by:

isDense in interface StorageOpsMetrics

isRandomAccess

public boolean isRandomAccess()

Checks if this implementation is optimized for random access.

Specified by:

isRandomAccess in interface StorageOpsMetrics

isDistributed

public boolean isDistributed()

Checks whether implementation is JVM-local or distributed (multi-JVM).

Specified by:

isDistributed in interface StorageOpsMetrics

isArrayBased

public boolean isArrayBased()

Checks if implementation is based on Java arrays.

Specified by:

isArrayBased in interface StorageOpsMetrics

destroy

public void destroy()

Delete all data from cache.

Specified by:

destroy in interface Destroyable

getUUID

public UUID getUUID()

Get storage UUID.

Returns:

storage UUID.

getCacheKey

public VectorBlockKey getCacheKey(long blockId)

Build the cache key for the given blocks id. NB: NOT cell indices.

getAllKeys

public Set<VectorBlockKey> getAllKeys()

Build a keyset for this storage.

Specified by:

getAllKeys in interface DistributedStorage<VectorBlockKey>

cacheName

public String cacheName()

Specified by:

cacheName in interface DistributedStorage<VectorBlockKey>

Returns:

The name of cache used in this storage.

getColForBlock

public List<VectorBlockEntry> getColForBlock(long blockId)

Get column for current block.

Parameters:

blockId - block id.

Returns:

The list of block entries.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

data

public double[] data()

Avoid this method for large vectors

Specified by:

data in interface VectorStorage

Returns:

data presented as array

See Also:

StorageOpsMetrics.isArrayBased()