saleline.java

web开发经典案例shoppingcart的EJB实现其entity部分

/*
 * SaleLine.java
 *
 * Created on 2008年6月2日, 上午9:40
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package stateful;

import java.io.Serializable;

/**
 *
 * @author teacher
 */
public class SaleLine implements Serializable{
    private int qty;
    private Product product;
    /** Creates a new instance of SaleLine */
    public SaleLine() {
    }

    public int getQty() {
        return qty;
    }

    public void setQty(int qty) {
        this.qty = qty;
    }

    public Product getProduct() {
        return product;
    }

    public void setProduct(Product product) {
        this.product = product;
    }

    public boolean equals(Object obj) {
        boolean retValue = false;
        if(obj instanceof SaleLine){
            SaleLine s = (SaleLine)obj;
            retValue = s.getProduct().equals(product);
        }
        return retValue;
    }

    public int hashCode() {
        return product.hashCode();
    }
    
}