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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.curriculumcourse.domain;
import java.util.List;
import com.thoughtworks.xstream.annotations.XStreamAlias;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.drools.planner.examples.common.domain.AbstractPersistable;
@XStreamAlias("Lecture")
public class Lecture extends AbstractPersistable implements Comparable {
private Course course;
private int lectureIndexInCourse;
// Changed by moves, between score calculations.
private Period period;
private Room room;
public Course getCourse() {
return course;
}
public void setCourse(Course course) {
this.course = course;
}
public int getLectureIndexInCourse() {
return lectureIndexInCourse;
}
public void setLectureIndexInCourse(int lectureIndexInCourse) {
this.lectureIndexInCourse = lectureIndexInCourse;
}
public Period getPeriod() {
return period;
}
public void setPeriod(Period period) {
this.period = period;
}
public Room getRoom() {
return room;
}
public void setRoom(Room room) {
this.room = room;
}
public String getLabel() {
return course + "-" + lectureIndexInCourse;
}
public int getStudentSize() {
return course.getStudentSize();
}
public List getCurriculumList() {
return course.getCurriculumList();
}
public Day getDay() {
return period.getDay();
}
public int getTimeslotIndex() {
return period.getTimeslot().getTimeslotIndex();
}
public int compareTo(Lecture other) {
return new CompareToBuilder()
.append(period, other.period)
.append(room, other.room)
.append(course, other.course)
.toComparison();
}
public Lecture clone() {
Lecture clone = new Lecture();
clone.id = id;
clone.course = course;
clone.lectureIndexInCourse = lectureIndexInCourse;
clone.period = period;
clone.room = room;
return clone;
}
/**
* The normal methods {@link #equals(Object)} and {@link #hashCode()} cannot be used because the rule engine already
* requires them (for performance in their original state).
* @see #solutionHashCode()
*/
public boolean solutionEquals(Object o) {
if (this == o) {
return true;
} else if (o instanceof Lecture) {
Lecture other = (Lecture) o;
return new EqualsBuilder()
.append(id, other.id)
.append(course, other.course)
.append(period, other.period)
.append(room, other.room)
.isEquals();
} else {
return false;
}
}
/**
* The normal methods {@link #equals(Object)} and {@link #hashCode()} cannot be used because the rule engine already
* requires them (for performance in their original state).
* @see #solutionEquals(Object)
*/
public int solutionHashCode() {
return new HashCodeBuilder()
.append(id)
.append(course)
.append(period)
.append(room)
.toHashCode();
}
@Override
public String toString() {
return course + "-" + lectureIndexInCourse + " @ " + period + " + " + room;
}
}