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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-examples module which contains examples on how to use
Drools Planner.
/*
* 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.examples.pas.domain.solver;
import java.io.Serializable;
import java.util.Comparator;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.drools.planner.examples.pas.domain.Bed;
import org.drools.planner.examples.pas.domain.Room;
public class BedStrengthComparator implements Comparator, Serializable {
public int compare(Bed a, Bed b) {
Room aRoom = a.getRoom();
Room bRoom = b.getRoom();
return new CompareToBuilder()
.append(bRoom.getCapacity(), aRoom.getCapacity()) // Descending (smaller rooms are stronger)
.append(aRoom.getRoomEquipmentList().size() + aRoom.getRoomSpecialismList().size(),
bRoom.getRoomEquipmentList().size() + bRoom.getRoomSpecialismList().size())
.append(a.getId(), b.getId())
.toComparison();
}
}