//$Id: Parent.java,v 1.2 2004/12/05 21:30:17 epbernard Exp $package org.hibernate.test.metadata.manytoone;import javax.ejb.Entity;import javax.ejb.AccessType;import javax.ejb.Id;import java.io.Serializable;/** * @author Emmanuel Bernard */@Entity(access = AccessType.FIELD)public class Parent implements Serializable {	@Id	public ParentPk id;	public int age;	public int hashCode() {		//a NPE can occurs, but I don't expect hashcode to be used before pk is set		return id.hashCode();	}	public boolean equals(Object obj) {		//a NPE can occurs, but I don't expect equals to be used before pk is set		if (obj != null && obj instanceof Parent) {			return id.equals( ( (Parent) obj).id );		}		else {			return false;		}	}}