org.cpsolver.studentsct.heuristics

Class TwoPhaseStudentSctNeighbourSelection

java.lang.Object

org.cpsolver.ifs.heuristics.StandardNeighbourSelection<V,T>

org.cpsolver.ifs.heuristics.RoundRobinNeighbourSelection<Request,Enrollment>

org.cpsolver.studentsct.heuristics.StudentSctNeighbourSelection

org.cpsolver.studentsct.heuristics.TwoPhaseStudentSctNeighbourSelection

All Implemented Interfaces:

NeighbourSelection<Request,Enrollment>, SolverListener<Request,Enrollment>

public class TwoPhaseStudentSctNeighbourSelection
extends StudentSctNeighbourSelection

Two-phase (Batch) student sectioning neighbour selection. It is based on StudentSctNeighbourSelection, however in the first round, only real students are sectioned. All dummy students are removed from the problem during initialization of this neighbour selection, they are returned into the problem after the first round of StudentSctNeighbourSelection.

Version:

StudentSct 1.3 (Student Sectioning)
Copyright (C) 2007 - 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/.

Author:

Tomáš Müller

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	TwoPhaseStudentSctNeighbourSelection.RestoreDummyStudents Return all dummy students into the problem, executed as the last phase of the first round

Field Summary

Fields inherited from class org.cpsolver.ifs.heuristics.RoundRobinNeighbourSelection

iSolver, sLogger

Fields inherited from class org.cpsolver.ifs.heuristics.StandardNeighbourSelection

iStat

Constructor Summary

Constructors

Constructor and Description
TwoPhaseStudentSctNeighbourSelection(DataProperties properties)

Method Summary

Modifier and Type	Method and Description
void	init(Solver<Request,Enrollment> solver) Initialization -- also remove all the dummy students from the problem

Methods inherited from class org.cpsolver.studentsct.heuristics.StudentSctNeighbourSelection

changeSelection, neighbourFailed, neighbourSelected, setup, valueSelected, variableSelected

Methods inherited from class org.cpsolver.ifs.heuristics.RoundRobinNeighbourSelection

getSelection, getSelectionIndex, registerSelection, selectNeighbour

Methods inherited from class org.cpsolver.ifs.heuristics.StandardNeighbourSelection

getValueSelection, getVariableSelection, selectValue, selectVariable, setValueSelection, setVariableSelection

Methods inherited from class java.lang.Object

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

Constructor Detail

TwoPhaseStudentSctNeighbourSelection

public TwoPhaseStudentSctNeighbourSelection(DataProperties properties)
                                     throws Exception

Throws:

Exception

Method Detail

init

public void init(Solver<Request,Enrollment> solver)

Initialization -- also remove all the dummy students from the problem

Specified by:

init in interface NeighbourSelection<Request,Enrollment>

Overrides:

init in class StudentSctNeighbourSelection

Parameters:

solver - current solver