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

Class ViewMatrixStorage

java.lang.Object

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

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, MatrixStorage, StorageOpsMetrics

public class ViewMatrixStorage
extends Object
implements MatrixStorage

MatrixStorage implementation that delegates to parent matrix.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ViewMatrixStorage()
ViewMatrixStorage(MatrixStorage dlg, int rowOff, int colOff, int rows, int cols)

Method Summary

Modifier and Type	Method and Description
int	accessMode()
int	columnOffset()
int	columnSize()
int	columnsLength()
double[]	data() Gets underlying data, if StorageOpsMetrics.isArrayBased() returns false this method return copy of data.
MatrixStorage	delegate()
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.
void	readExternal(ObjectInput in)
int	rowOffset()
int	rowSize()
int	rowsLength()
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.primitives.matrix.MatrixStorage

isNumeric

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

destroy

Constructor Detail

ViewMatrixStorage

public ViewMatrixStorage()

ViewMatrixStorage

public ViewMatrixStorage(MatrixStorage dlg,
                         int rowOff,
                         int colOff,
                         int rows,
                         int cols)

Parameters:

dlg - Backing parent storage.

rowOff - Row offset to parent matrix.

colOff - Column offset to parent matrix.

rows - Amount of rows in the view.

cols - Amount of columns in the view.

Method Detail

delegate

public MatrixStorage delegate()

rowOffset

public int rowOffset()

columnOffset

public int columnOffset()

rowsLength

public int rowsLength()

columnsLength

public int columnsLength()

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

isArrayBased

public boolean isArrayBased()

Checks if implementation is based on Java arrays.

Specified by:

isArrayBased 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

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()

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

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object