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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.localsearch.decider.acceptor;
import java.util.List;
import org.drools.planner.core.localsearch.LocalSearchSolverPhaseScope;
import org.drools.planner.core.localsearch.LocalSearchStepScope;
import org.drools.planner.core.localsearch.decider.MoveScope;
/**
* Combines several acceptors into one.
* Does a logical AND over the accepted status of its acceptors.
* For example: combine planning entity and planning value tabu to do tabu on both.
*/
public class CompositeAcceptor extends AbstractAcceptor {
protected List acceptorList;
public void setAcceptorList(List acceptorList) {
this.acceptorList = acceptorList;
}
// ************************************************************************
// Worker methods
// ************************************************************************
@Override
public void phaseStarted(LocalSearchSolverPhaseScope localSearchSolverPhaseScope) {
for (Acceptor acceptor : acceptorList) {
acceptor.phaseStarted(localSearchSolverPhaseScope);
}
}
@Override
public void beforeDeciding(LocalSearchStepScope localSearchStepScope) {
for (Acceptor acceptor : acceptorList) {
acceptor.beforeDeciding(localSearchStepScope);
}
}
public boolean isAccepted(MoveScope moveScope) {
for (Acceptor acceptor : acceptorList) {
boolean accepted = acceptor.isAccepted(moveScope);
if (!accepted) {
return false;
}
}
return true;
}
@Override
public void stepTaken(LocalSearchStepScope localSearchStepScope) {
for (Acceptor acceptor : acceptorList) {
acceptor.stepTaken(localSearchStepScope);
}
}
@Override
public void phaseEnded(LocalSearchSolverPhaseScope localSearchSolverPhaseScope) {
for (Acceptor acceptor : acceptorList) {
acceptor.phaseEnded(localSearchSolverPhaseScope);
}
}
}