Step.java

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
 */
package org.hibernate.test.schemaupdate.inheritance.hhh_x;

import javax.persistence.Column;
import javax.persistence.DiscriminatorColumn;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import java.io.Serializable;

/**
 * @author Andrea Boriero
 */
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "type")
@Table(name = "step")
@Entity
public abstract class Step implements Serializable {

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	@Column(unique = true, nullable = false)
	protected Integer id;

	@ManyToOne
	private Step parent;
}