net.sf.cpsolver.coursett.heuristics
Class NeighbourSelectionWithSuggestions

java.lang.Object
  extended by net.sf.cpsolver.ifs.heuristics.StandardNeighbourSelection<Lecture,Placement>
      extended by net.sf.cpsolver.coursett.heuristics.NeighbourSelectionWithSuggestions
All Implemented Interfaces:
NeighbourSelection<Lecture,Placement>

public class NeighbourSelectionWithSuggestions
extends StandardNeighbourSelection<Lecture,Placement>

Neighbour selection which does the standard time neighbour selection most of the time, however, the very best neighbour is selected time to time (using backtracking based search).

Version:
CourseTT 1.2 (University Course Timetabling)
Copyright (C) 2006 - 2010 Tomas Muller
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/.
See Also:
StandardNeighbourSelection

Nested Class Summary
 class NeighbourSelectionWithSuggestions.SuggestionNeighbour
           
 
Field Summary
 
Fields inherited from class net.sf.cpsolver.ifs.heuristics.StandardNeighbourSelection
sLogger
 
Constructor Summary
NeighbourSelectionWithSuggestions(DataProperties properties)
           
NeighbourSelectionWithSuggestions(Solver<Lecture,Placement> solver)
           
 
Method Summary
 void init(Solver<Lecture,Placement> solver)
          Initialization -- methods VariableSelection.init(Solver) and ValueSelection.init(Solver) are called.
 Neighbour<Lecture,Placement> selectNeighbour(Solution<Lecture,Placement> solution)
          Select neighbour.
 Neighbour<Lecture,Placement> selectNeighbourWithSuggestions(Solution<Lecture,Placement> solution, Lecture lecture, int depth)
           
 
Methods inherited from class net.sf.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

NeighbourSelectionWithSuggestions

public NeighbourSelectionWithSuggestions(DataProperties properties)
                                  throws Exception
Throws:
Exception

NeighbourSelectionWithSuggestions

public NeighbourSelectionWithSuggestions(Solver<Lecture,Placement> solver)
                                  throws Exception
Throws:
Exception
Method Detail

init

public void init(Solver<Lecture,Placement> solver)
Description copied from class: StandardNeighbourSelection
Initialization -- methods VariableSelection.init(Solver) and ValueSelection.init(Solver) are called.

Specified by:
init in interface NeighbourSelection<Lecture,Placement>
Overrides:
init in class StandardNeighbourSelection<Lecture,Placement>

selectNeighbour

public Neighbour<Lecture,Placement> selectNeighbour(Solution<Lecture,Placement> solution)
Description copied from class: StandardNeighbourSelection
Select neighbour. A value is selected to the selected variable.

Specified by:
selectNeighbour in interface NeighbourSelection<Lecture,Placement>
Overrides:
selectNeighbour in class StandardNeighbourSelection<Lecture,Placement>
Parameters:
solution - given solution
Returns:
a neighbour assignment

selectNeighbourWithSuggestions

public Neighbour<Lecture,Placement> selectNeighbourWithSuggestions(Solution<Lecture,Placement> solution,
                                                                   Lecture lecture,
                                                                   int depth)


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