/**
* 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.nqueens.domain;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.drools.planner.examples.common.domain.AbstractPersistable;
/**
* @author Geoffrey De Smet
*/
public class Queen extends AbstractPersistable implements Comparable<Queen> {
private int x;
private int y;
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public int getAscendingD() {
return (x + y);
}
public int getDescendingD() {
return (x - y);
}
public int compareTo(Queen other) {
return new CompareToBuilder()
.append(x, other.x)
.append(y, other.y)
.append(id, other.id)
.toComparison();
}
public Queen clone() {
Queen clone = new Queen();
clone.id = id;
clone.x = x;
clone.y = y;
return clone;
}
@Override
public String toString() {
return super.toString() + " " + x + " @ " + y;
}
}