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

Class DenseMatrixStorage

java.lang.Object

org.apache.ignite.ml.math.primitives.matrix.storage.DenseMatrixStorage

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, MatrixStorage, StorageOpsMetrics

public class DenseMatrixStorage
extends Object
implements MatrixStorage

Array based MatrixStorage implementation.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DenseMatrixStorage()
DenseMatrixStorage(double[][] data)
DenseMatrixStorage(double[][] data, int stoMode)
DenseMatrixStorage(double[] data, int rows)
DenseMatrixStorage(double[] data, int rows, int stoMode)
DenseMatrixStorage(int rows, int cols)
DenseMatrixStorage(int rows, int cols, int stoMode)

Method Summary

Modifier and Type	Method and Description
int	accessMode() Get the access mode of this storage.
int	columnSize()
double[]	data() Gets underlying data, if StorageOpsMetrics.isArrayBased() returns false this method return copy of data.
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.
void	readExternal(ObjectInput in)
int	rowSize()
void	set(int x, int y, double v)
int	storageMode()
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.Destroyable

destroy

Constructor Detail

DenseMatrixStorage

public DenseMatrixStorage()

DenseMatrixStorage

public DenseMatrixStorage(int rows,
                          int cols)

Parameters:

rows - Amount of rows in the matrix.

cols - Amount of columns in the matrix.

DenseMatrixStorage

public DenseMatrixStorage(int rows,
                          int cols,
                          int stoMode)

DenseMatrixStorage

public DenseMatrixStorage(double[][] data,
                          int stoMode)

Parameters:

data - Backing data array.

DenseMatrixStorage

public DenseMatrixStorage(double[][] data)

Parameters:

data - Backing data array.

DenseMatrixStorage

public DenseMatrixStorage(double[] data,
                          int rows,
                          int stoMode)

Parameters:

data - Backing data array.

DenseMatrixStorage

public DenseMatrixStorage(double[] data,
                          int rows)

Parameters:

data - Backing data array.

Method Detail

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.

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

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

isArrayBased

public boolean isArrayBased()

Checks if implementation is based on Java arrays.

Specified by:

isArrayBased in interface StorageOpsMetrics

data

public double[] data()

Gets underlying data, if StorageOpsMetrics.isArrayBased() returns false this method return copy of data. The data must be adapted for Blas.

Specified by:

data in interface MatrixStorage

See Also:

StorageOpsMetrics.isArrayBased()

storageMode

public int storageMode()

Specified by:

storageMode in interface MatrixStorage

Returns:

Matrix elements storage 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

accessMode

public int accessMode()

Get the access mode of this storage.

Specified by:

accessMode in interface MatrixStorage

Returns:

Matrix access mode.

See Also:

StorageConstants

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object