MutablePoint.java

/*
 * Created on 12-11-20
 * 
 * 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.
 * 
 * Copyright @2012 the original author or authors.
 */
package org.cneng.models;

/**
 * Description of this file.
 *
 * @author XiongNeng
 * @version 1.0
 * @since 12-11-20
 */
public class MutablePoint {
    private int x;
    private int y;

    public MutablePoint(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    // Problematic
    public void setX(int x) {
        this.x = x;
    }

    public void setY(int y) {
        this.y = y;
    }

    @Override
    public boolean equals(Object other) {
        boolean result = false;
        if (other instanceof MutablePoint) {
            MutablePoint that = (MutablePoint) other;
            result = (this.getX() == that.getX() && this.getY() == that.getY());
        }
        return result;
    }

    @Override
    public int hashCode() {
        return (41 * (41 + getX()) + getY());
    }
}