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Drools Planner optimizes automated planning by combining metaheuristic search algorithms with rule
engine powered score calculation. This is the drools-planner-core module which contains metaheuristic
algorithms.
/*
* Copyright 2011 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.planner.core.solver;
import java.util.Collection;
import java.util.List;
import java.util.Random;
import org.drools.planner.core.domain.solution.SolutionDescriptor;
import org.drools.planner.core.score.Score;
import org.drools.planner.core.score.definition.ScoreDefinition;
import org.drools.planner.core.score.director.ScoreDirector;
import org.drools.planner.core.solution.Solution;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultSolverScope {
protected final transient Logger logger = LoggerFactory.getLogger(getClass());
protected boolean restartSolver = false;
protected long startingSystemTimeMillis;
protected ScoreDirector scoreDirector;
protected Random workingRandom;
protected Score startingInitializedScore; // TODO after initialization => ambiguous with setPlanningProblem
protected Solution bestSolution;
protected Score bestScore; // TODO remove me
public boolean isRestartSolver() {
return restartSolver;
}
public long getStartingSystemTimeMillis() {
return startingSystemTimeMillis;
}
public void setStartingSystemTimeMillis(long startingSystemTimeMillis) {
this.startingSystemTimeMillis = startingSystemTimeMillis;
}
public void setRestartSolver(boolean restartSolver) {
this.restartSolver = restartSolver;
}
public ScoreDirector getScoreDirector() {
return scoreDirector;
}
public void setScoreDirector(ScoreDirector scoreDirector) {
this.scoreDirector = scoreDirector;
}
public SolutionDescriptor getSolutionDescriptor() {
return scoreDirector.getSolutionDescriptor();
}
public ScoreDefinition getScoreDefinition() {
return scoreDirector.getScoreDefinition();
}
public Solution getWorkingSolution() {
return scoreDirector.getWorkingSolution();
}
public List