Hibernate example source code file (OrderLine.java)

This example Hibernate source code file (OrderLine.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

id, integer, integer, io, joincolumn, manytoone, order, orderline, orderline, override, prime, prime, product, product, table

The Hibernate OrderLine.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.test.annotations.derivedidentities.bidirectional;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;

@SuppressWarnings("serial")
@Entity
@Table(name = "order_line")
// @IdClass(OrderLinePK.class)
public class OrderLine implements Serializable
{
	@Id
	@ManyToOne(targetEntity = Order.class)
	@JoinColumn(name = "order_id", nullable = false)
	private Order order;
	@Id
	@ManyToOne(targetEntity = Product.class)
	@JoinColumn(name = "product_id", nullable = false)
	private Product product;
	@Column(name = "amount")
	private Integer amount;
	
	public OrderLine()
	{
		super();
	}

	public OrderLine(Order order, Product product, Integer amount)
	{
		this();
		this.order = order;
		this.product = product;
		this.amount = amount;
	}

	public Product getProduct()
	{
		return product;
	}

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

	public Order getOrder()
	{
		return order;
	}

	public void setOrder(Order order)
	{
		this.order = order;
	}

	public Integer getAmount()
	{
		return amount;
	}

	public void setAmount(Integer amount)
	{
		this.amount = amount;
	}

	@Override
	public int hashCode()
	{
		final int PRIME = 31;
		int result = 1;
		result = PRIME * result + ((amount == null) ? 0 : amount.hashCode());
		result = PRIME * result + ((order == null) ? 0 : order.hashCode());
		result = PRIME * result + ((product == null) ? 0 : product.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj)
	{
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		final OrderLine other = (OrderLine) obj;
		if (amount == null)
		{
			if (other.amount != null)
				return false;
		} else if (!amount.equals(other.amount))
			return false;
		if (order == null)
		{
			if (other.order != null)
				return false;
		} else if (!order.equals(other.order))
			return false;
		if (product == null)
		{
			if (other.product != null)
				return false;
		} else if (!product.equals(other.product))
			return false;
		return true;
	}
}