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

Class CacheVectorStorage<K,V>

java.lang.Object

org.apache.ignite.ml.math.impls.storage.vector.CacheVectorStorage<K,V>

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, StorageOpsMetrics, VectorStorage

public class CacheVectorStorage<K,V>
extends Object
implements VectorStorage

Vector storage based on existing cache and index and value mapping functions.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CacheVectorStorage()
CacheVectorStorage(int size, IgniteCache<K,V> cache, VectorKeyMapper<K> keyMapper, ValueMapper<V> valMapper)

Method Summary

Modifier and Type	Method and Description
IgniteCache<K,V>	cache()
boolean	equals(Object obj)
double	get(int i)
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.
VectorKeyMapper<K>	keyMapper()
void	readExternal(ObjectInput in)
void	set(int i, double v)
int	size()
ValueMapper<V>	valueMapper()
void	writeExternal(ObjectOutput out)

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.VectorStorage

data

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

destroy

Constructor Detail

CacheVectorStorage

public CacheVectorStorage()

CacheVectorStorage

public CacheVectorStorage(int size,
                          IgniteCache<K,V> cache,
                          VectorKeyMapper<K> keyMapper,
                          ValueMapper<V> valMapper)

Parameters:

size - Vector size.

cache - Ignite cache.

keyMapper - VectorKeyMapper to validate cache key.

valMapper - ValueMapper to obtain value for given cache key.

Method Detail

cache

public IgniteCache<K,V> cache()

Returns:

Ignite cache.

keyMapper

public VectorKeyMapper<K> keyMapper()

Returns:

Key mapper to validate cache keys.

valueMapper

public ValueMapper<V> valueMapper()

Returns:

Value mapper to obtain vector element values.

size

public int size()

Specified by:

size in interface VectorStorage

get

public double get(int i)

Specified by:

get in interface VectorStorage

Parameters:

i - Vector element index.

Returns:

Value obtained for given element index.

set

public void set(int i,
                double v)

Specified by:

set in interface VectorStorage

Parameters:

i - Vector element index.

v - Value to set at given index.

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

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object