net.sf.cpsolver.ifs.solution
Interface SolutionComparator
- All Known Implementing Classes:
- GeneralSolutionComparator, MPPSolutionComparator, TimetableComparator
public interface SolutionComparator
IFS solution comparator.
The solution comparator compares two solutions: the current solution and the best solution found. This comparison can
be based on several criteria. For example, it can lexicographically order solutions according to the number of
unassigned variables (smaller number is better) and the number of violated soft constraints.
- Version:
- IFS 1.1 (Iterative Forward Search)
Copyright (C) 2006 Tomáš Müller
muller@unitime.org
Lazenska 391, 76314 Zlin, Czech Republic
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 2.1 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- See Also:
Solution,
Solver
isBetterThanBestSolution
boolean isBetterThanBestSolution(Solution currentSolution)
- Compares two solutions. Returns true if the given solution is better than its best ever found solution (see
Solution.saveBest() and Solution.restoreBest()).
- Parameters:
currentSolution - given solution
- Returns:
- true if the given solution is better than the best ever found solution