Hibernate example source code file (Item.java)

This example Hibernate source code file (Item.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

bigdecimal, bigdecimal, by, column, column, i_name, id, io, item, item, math, override, query_by_category, string, string, table

The Hibernate Item.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat, Inc. and/or its affiliates 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.e1.b.specjmapid;
import java.io.Serializable;
import java.math.BigDecimal;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.persistence.Version;


@NamedQueries({
		@NamedQuery(name = "Item.findByCategory",
				query = "SELECT i FROM Item i WHERE i.category=:category ORDER BY i.id")
})
@SuppressWarnings("serial")
@Entity
@Table(name = "O_ITEM")
public class Item implements Serializable {

	public static final String QUERY_BY_CATEGORY = "Item.findByCategory";

	@Id
	@Column(name = "I_ID")
	private String id;

	@Column(name = "I_NAME")
	private String name;

	@Column(name = "I_PRICE")
	private BigDecimal price;

	@Column(name = "I_DESC")
	private String description;

	@Column(name = "I_DISCOUNT")
	private BigDecimal discount;

	@Column(name = "I_CATEGORY")
	private int category;

	@Version
	@Column(name = "I_VERSION")
	int version;

	public String getId() {
		return id;
	}

	public void setId(String i) {
		id = i;
	}

	public int getCategory() {
		return category;
	}

	public void setCategory(int category) {
		this.category = category;
	}

	public String getDescription() {
		return description;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public BigDecimal getDiscount() {
		return discount;
	}

	public void setDiscount(BigDecimal discount) {
		if ( discount.doubleValue() < 0 || discount.doubleValue() > 100.0 ) {
			throw new IllegalArgumentException(
					this + " discount " + discount
							+ " is invalid. Must be between 0.0 and 100.0"
			);
		}
		this.discount = discount;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public BigDecimal getPrice() {
		return price;
	}

	public void setPrice(BigDecimal price) {
		this.price = price;
	}

	public int getVersion() {
		return version;
	}

	@Override
	public boolean equals(Object other) {
		if ( other == null || other.getClass() != this.getClass() ) {
			return false;
		}
		if ( other == this ) {
			return true;
		}
		return id.equals( ( ( Item ) other ).id );
	}

	@Override
	public int hashCode() {
		return id.hashCode();
	}
}