org.cpsolver.ifs.model

Class LazySwap<V extends Variable<V,T>,T extends Value<V,T>>

java.lang.Object

org.cpsolver.ifs.model.LazyNeighbour<V,T>

org.cpsolver.ifs.model.LazySwap<V,T>

Type Parameters:

V - Variable

T - Value

All Implemented Interfaces:

Neighbour<V,T>

public class LazySwap<V extends Variable<V,T>,T extends Value<V,T>>
extends LazyNeighbour<V,T>

Lazy swap of two variables. See LazyNeighbour.

Version:

IFS 1.3 (Iterative Forward Search)
Copyright (C) 2013 - 2014 Tomáš Müller
muller@unitime.org
http://muller.unitime.org

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not see http://www.gnu.org/licenses/.

Nested Class Summary

Nested classes/interfaces inherited from class org.cpsolver.ifs.model.LazyNeighbour

LazyNeighbour.LazyNeighbourAcceptanceCriterion<V extends Variable<V,T>,T extends Value<V,T>>

Constructor Summary

Constructors

Constructor and Description
LazySwap(T v1, T v2) Constructor

Method Summary

Modifier and Type	Method and Description
Map<V,T>	assignments() Return assignments to be done.
protected void	doAssign(Assignment<V,T> assignment, long iteration) Perform swap
Model<V,T>	getModel() Return problem model
String	toString() String representation
protected void	undoAssign(Assignment<V,T> assignment, long iteration) Undo the swap

Methods inherited from class org.cpsolver.ifs.model.LazyNeighbour

assign, getAcceptanceCriterion, setAcceptanceCriterion, value

Methods inherited from class java.lang.Object

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

Constructor Detail

LazySwap

public LazySwap(T v1,
                T v2)

Constructor

Parameters:

v1 - first variable

v2 - second variable

Method Detail

doAssign

protected void doAssign(Assignment<V,T> assignment,
                        long iteration)

Perform swap

Specified by:

doAssign in class LazyNeighbour<V extends Variable<V,T>,T extends Value<V,T>>

Parameters:

assignment - current assignment

iteration - current iteration

undoAssign

protected void undoAssign(Assignment<V,T> assignment,
                          long iteration)

Undo the swap

Specified by:

undoAssign in class LazyNeighbour<V extends Variable<V,T>,T extends Value<V,T>>

Parameters:

assignment - current assignment

iteration - current iteration

getModel

public Model<V,T> getModel()

Return problem model

Specified by:

getModel in class LazyNeighbour<V extends Variable<V,T>,T extends Value<V,T>>

Returns:

problem model

toString

public String toString()

String representation

Overrides:

toString in class Object

assignments

public Map<V,T> assignments()

Description copied from interface: Neighbour

Return assignments to be done.

Returns:

list of assignments (including unassignments) of this neighbour