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

Class CacheMatrixStorage<K,V>

java.lang.Object

org.apache.ignite.ml.math.impls.storage.matrix.CacheMatrixStorage<K,V>

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, MatrixStorage, StorageOpsMetrics

public class CacheMatrixStorage<K,V>
extends Object
implements MatrixStorage

Matrix storage based on arbitrary cache and key and value mapping functions.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CacheMatrixStorage()
CacheMatrixStorage(int rows, int cols, IgniteCache<K,V> cache, MatrixKeyMapper<K> keyMapper, ValueMapper<V> valMapper)

Method Summary

Modifier and Type	Method and Description
int	accessMode()
IgniteCache<K,V>	cache()
int	columnSize()
boolean	equals(Object o)
double	get(int x, int y)
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.
MatrixKeyMapper<K>	keyMapper()
void	readExternal(ObjectInput in)
int	rowSize()
void	set(int x, int y, double v)
int	storageMode()
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.MatrixStorage

data

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

destroy

Constructor Detail

CacheMatrixStorage

public CacheMatrixStorage()

CacheMatrixStorage

public CacheMatrixStorage(int rows,
                          int cols,
                          IgniteCache<K,V> cache,
                          MatrixKeyMapper<K> keyMapper,
                          ValueMapper<V> valMapper)

Parameters:

rows - Amount of rows in matrix.

cols - Amount of columns in matrix.

cache - Ignite cache.

keyMapper - MatrixKeyMapper 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 MatrixKeyMapper<K> keyMapper()

Returns:

Key mapper.

valueMapper

public ValueMapper<V> valueMapper()

Returns:

Value mapper.

get

public double get(int x,
                  int y)

Specified by:

get in interface MatrixStorage

Parameters:

x - Matrix row index.

y - Matrix column index.

Returns:

Value corresponding to given row and column.

set

public void set(int x,
                int y,
                double v)

Specified by:

set in interface MatrixStorage

Parameters:

x - Matrix row index.

y - Matrix column index.

v - Value to set at given row and column.

columnSize

public int columnSize()

Specified by:

columnSize in interface MatrixStorage

rowSize

public int rowSize()

Specified by:

rowSize in interface MatrixStorage

storageMode

public int storageMode()

Specified by:

storageMode in interface MatrixStorage

Returns:

Matrix elements storage mode.

See Also:

StorageConstants

accessMode

public int accessMode()

Specified by:

accessMode in interface MatrixStorage

Returns:

Matrix access mode.

See Also:

StorageConstants

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 o)

Overrides:

equals in class Object