OrderItem.java

/*******************************************************************************
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013,2014 by Peter Pilgrim, Addiscombe, Surrey, XeNoNiQUe UK
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU GPL v3.0
 * which accompanies this distribution, and is available at:
 * http://www.gnu.org/licenses/gpl-3.0.txt
 *
 * Developers:
 * Peter Pilgrim -- design, development and implementation
 *               -- Blog: http://www.xenonique.co.uk/blog/
 *               -- Twitter: @peter_pilgrim
 *
 * Contributors:
 *
 *******************************************************************************/

package je7hb.basic.ejb;

import java.io.Serializable;

/**
 * The immutable type OrderItem
 *
 * @author Peter Pilgrim
 */
public final class OrderItem implements Serializable {
    private final int quantity;
    private final Product product;

    public OrderItem(int quantity, Product product) {
        this.quantity = quantity;
        this.product = product;
    }

    public int getQuantity() {
        return quantity;
    }

    public Product getProduct() {
        return product;
    }

    @Override
    public String toString() {
        return "OrderItem{" +
                "quantity=" + quantity +
                ", product=" + product +
                '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof OrderItem)) return false;

        OrderItem orderItem = (OrderItem) o;

        if (quantity != orderItem.quantity) return false;
        if (product != null ? !product.equals(orderItem.product) : orderItem.product != null) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = quantity;
        result = 31 * result + (product != null ? product.hashCode() : 0);
        return result;
    }
}