net.sf.cpsolver.ifs.solution
Class GeneralSolutionComparator<V extends Variable<V,T>,T extends Value<V,T>>
java.lang.Object
net.sf.cpsolver.ifs.solution.GeneralSolutionComparator<V,T>
- All Implemented Interfaces:
- SolutionComparator<V,T>
- Direct Known Subclasses:
- TimetableComparator
public class GeneralSolutionComparator<V extends Variable<V,T>,T extends Value<V,T>>
- extends Object
- implements SolutionComparator<V,T>
General implementation of solution comparator.
The solution is better than the best ever found solution when it has more
variables assigned. In the case, when both solutions have the same number of
assigned variables, the better solution is the one with smaller total value,
i.e., the sum of Value.toDouble()
over all
assigned variables.
- Version:
- IFS 1.2 (Iterative Forward Search)
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:
Solution
,
Solver
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
GeneralSolutionComparator
public GeneralSolutionComparator()
GeneralSolutionComparator
public GeneralSolutionComparator(DataProperties properties)
- No parameters are used so far.
isBetterThanBestSolution
public boolean isBetterThanBestSolution(Solution<V,T> currentSolution)
- Description copied from interface:
SolutionComparator
- Compares two solutions. Returns true if the given solution is better than
its best ever found solution (see
Solution.saveBest()
and
Solution.restoreBest()
).
- Specified by:
isBetterThanBestSolution
in interface SolutionComparator<V extends Variable<V,T>,T extends Value<V,T>>
- Parameters:
currentSolution
- given solution
- Returns:
- true if the given solution is better than the best ever found
solution
Copyright © 2014 UniTime LLC. All Rights Reserved.