cc.redberry.core.transformations.reverse

Class ReverseTransformation

java.lang.Object

cc.redberry.core.transformations.reverse.ReverseTransformation

All Implemented Interfaces:

Transformation

public final class ReverseTransformation
extends java.lang.Object
implements Transformation

Reverses the order of matrices in expression.

Nested Class Summary

Nested classes/interfaces inherited from interface cc.redberry.core.transformations.Transformation

Transformation.Util

Field Summary

Fields inherited from interface cc.redberry.core.transformations.Transformation

INDENTITY

Constructor Summary

Constructors

Constructor and Description
ReverseTransformation(IndexType type) Creates transformations that reverses order of matrices of specified type.

Method Summary

Modifier and Type	Method and Description
static void	assertType(IndexType type)
static Tensor	inverseOrderOfMatrices(Tensor t, IndexType type) Reverses the order of matrices of specified type in expression.
Tensor	transform(Tensor t) Transforms specified tensor and returns the result.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReverseTransformation

public ReverseTransformation(IndexType type)

Creates transformations that reverses order of matrices of specified type.

Parameters:

type - index type

Throws:

java.lang.IllegalArgumentException - if type is not a matrix type (i.e. it has metric)

Method Detail

transform

public Tensor transform(Tensor t)

Description copied from interface: Transformation

Transforms specified tensor and returns the result.

Specified by:

transform in interface Transformation

Parameters:

t - tensor

Returns:

transformed tensor

assertType

public static void assertType(IndexType type)

inverseOrderOfMatrices

public static Tensor inverseOrderOfMatrices(Tensor t,
                                            IndexType type)

Reverses the order of matrices of specified type in expression.

Parameters:

t - tensor

type - matrix type

Returns:

reversed tensor