org.apfloat.internal

Class DoubleNTTBuilder

java.lang.Object

org.apfloat.internal.AbstractNTTBuilder

org.apfloat.internal.DoubleNTTBuilder

All Implemented Interfaces:

NTTBuilder

public class DoubleNTTBuilder
extends AbstractNTTBuilder

Creates Number Theoretic Transforms for the double type.

Version:

1.7.0

Author:

Mikko Tommila

See Also:

DoubleTableFNTStrategy, SixStepFNTStrategy, TwoPassFNTStrategy, Factor3NTTStrategy

Constructor Summary

Constructors

Constructor and Description
DoubleNTTBuilder() Default constructor.

Method Summary

Modifier and Type	Method and Description
Factor3NTTStepStrategy	createFactor3NTTSteps() Creates an object for implementing the steps of factor-3 NTT.
protected NTTStrategy	createFactor3NTTStrategy(NTTStrategy nttStrategy) Create a factor-3 NTT strategy on top of another NTT strategy.
NTTConvolutionStepStrategy	createNTTConvolutionSteps() Creates an object for implementing the steps of a three-NTT based convolution.
NTTStepStrategy	createNTTSteps() Creates an object for implementing the steps of a step-based Number Theoretic Transform.
protected NTTStrategy	createSimpleFNTStrategy() Create a simple NTT strategy.
protected NTTStrategy	createSixStepFNTStrategy() Create a six-step NTT strategy.
protected NTTStrategy	createTwoPassFNTStrategy() Create a two-pass NTT strategy.

Methods inherited from class org.apfloat.internal.AbstractNTTBuilder

createNTT

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleNTTBuilder

public DoubleNTTBuilder()

Default constructor.

Method Detail

createNTTSteps

public NTTStepStrategy createNTTSteps()

Description copied from interface: NTTBuilder

Creates an object for implementing the steps of a step-based Number Theoretic Transform.

Returns:

A suitable object for performing the transform steps.

createNTTConvolutionSteps

public NTTConvolutionStepStrategy createNTTConvolutionSteps()

Description copied from interface: NTTBuilder

Creates an object for implementing the steps of a three-NTT based convolution.

Returns:

A suitable object for performing the convolution steps.

createFactor3NTTSteps

public Factor3NTTStepStrategy createFactor3NTTSteps()

Description copied from interface: NTTBuilder

Creates an object for implementing the steps of factor-3 NTT.

Returns:

A suitable object for performing the factor-3 NTT steps.

createSimpleFNTStrategy

protected NTTStrategy createSimpleFNTStrategy()

Description copied from class: AbstractNTTBuilder

Create a simple NTT strategy.

Specified by:

createSimpleFNTStrategy in class AbstractNTTBuilder

Returns:

A new simple NTT strategy.

createSixStepFNTStrategy

protected NTTStrategy createSixStepFNTStrategy()

Description copied from class: AbstractNTTBuilder

Create a six-step NTT strategy.

Specified by:

createSixStepFNTStrategy in class AbstractNTTBuilder

Returns:

A new six-step NTT strategy.

createTwoPassFNTStrategy

protected NTTStrategy createTwoPassFNTStrategy()

Description copied from class: AbstractNTTBuilder

Create a two-pass NTT strategy.

Specified by:

createTwoPassFNTStrategy in class AbstractNTTBuilder

Returns:

A new two-pass NTT strategy.

createFactor3NTTStrategy

protected NTTStrategy createFactor3NTTStrategy(NTTStrategy nttStrategy)

Description copied from class: AbstractNTTBuilder

Create a factor-3 NTT strategy on top of another NTT strategy.

Specified by:

createFactor3NTTStrategy in class AbstractNTTBuilder

Parameters:

nttStrategy - The underlying factor-2 NTT strategy.

Returns:

A new factor-3 NTT strategy.