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

Class VectorizedViewMatrixStorage

java.lang.Object

org.apache.ignite.ml.math.primitives.vector.storage.VectorizedViewMatrixStorage

All Implemented Interfaces:

Externalizable, Serializable, Destroyable, VectorStorage, StorageOpsMetrics

public class VectorizedViewMatrixStorage
extends Object
implements VectorStorage

Row, column or diagonal vector-based view of the matrix

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
VectorizedViewMatrixStorage()
VectorizedViewMatrixStorage(Matrix parent, int row, int col, int rowStride, int colStride)

Method Summary

Modifier and Type	Method and Description
double[]	data() Gets underlying array if StorageOpsMetrics.isArrayBased() returns true and all values in vector are Numbers.
double	get(int i) Gets element from vector by index and cast it to double.
<T extends Serializable> T	getRaw(int i)
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	isNumeric()
void	readExternal(ObjectInput in)
void	set(int i, double v)
void	setRaw(int i, Serializable v)
int	size()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.ml.math.primitives.vector.VectorStorage

rawData

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

destroy

Constructor Detail

VectorizedViewMatrixStorage

public VectorizedViewMatrixStorage()

VectorizedViewMatrixStorage

public VectorizedViewMatrixStorage(Matrix parent,
                                   int row,
                                   int col,
                                   int rowStride,
                                   int colStride)

Parameters:

parent - Parent matrix.

row - Starting row in the view.

col - Starting column in the view.

rowStride - Rows stride in the view.

colStride - Columns stride in the view.

Method Detail

size

public int size()

Specified by:

size in interface VectorStorage

get

public double get(int i)

Gets element from vector by index and cast it to double.

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.

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

isDistributed

public boolean isDistributed()

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

Specified by:

isDistributed in interface StorageOpsMetrics

isNumeric

public boolean isNumeric()

Specified by:

isNumeric in interface StorageOpsMetrics

Returns:

true if all stored data are values of Number class.

isArrayBased

public boolean isArrayBased()

Checks if implementation is based on Java arrays.

Specified by:

isArrayBased in interface StorageOpsMetrics

data

public double[] data()

Gets underlying array if StorageOpsMetrics.isArrayBased() returns true and all values in vector are Numbers. Returns null if in other cases.

Specified by:

data in interface VectorStorage

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

getRaw

public <T extends Serializable> T getRaw(int i)

Specified by:

getRaw in interface VectorStorage

Type Parameters:

T - Type of stored element in vector.

Parameters:

i - Vector element index.

Returns:

Value obtained for given element index.

setRaw

public void setRaw(int i,
                   Serializable v)

Specified by:

setRaw in interface VectorStorage

Parameters:

i - Vector element index.

v - Value to set at given index.