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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 2010 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.move;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import org.drools.planner.core.score.director.ScoreDirector;
/**
* A CompositeMove is composed out of multiple other moves.
*
* Warning: one of the moveList moves should not rely on the effect on of a previous moveList move
* to create an uncorrupted undoMove. In other words,
* @see Move
*/
public class CompositeMove implements Move {
protected List moveList;
/**
* @param moveList cannot be null
*/
public CompositeMove(List moveList) {
this.moveList = moveList;
}
public boolean isMoveDoable(ScoreDirector scoreDirector) {
for (Move move : moveList) {
if (!move.isMoveDoable(scoreDirector)) {
return false;
}
}
return true;
}
public Move createUndoMove(ScoreDirector scoreDirector) {
List undoMoveList = new ArrayList(moveList.size());
for (Move move : moveList) {
// Note: this undoMove doesn't have the affect of a previous move in the moveList
// This could be made possible by merging the methods createUndoMove and doMove...
Move undoMove = move.createUndoMove(scoreDirector);
undoMoveList.add(undoMove);
}
Collections.reverse(undoMoveList);
return new CompositeMove(undoMoveList);
}
public void doMove(ScoreDirector scoreDirector) {
for (Move move : moveList) {
move.doMove(scoreDirector);
}
}
public Collection getPlanningEntities() {
Set