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@Parent in Hibernate Annotation

By Arvind Rai, February 05, 2013
In Hibernate Annotation, while using embeddable object we can assign parent class reference in embeddable class. @Parent annotation is used to assign the parent reference. We can call this reference through the parent class. In the below example we have an Entity that will embed the Address entity.
package com.concretepage.persistence;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Embeddable;
import javax.persistence.Id;
import javax.persistence.Table;

import org.hibernate.annotations.Parent;

@Embeddable
@Table(name="address")
public class Address implements Serializable {
	private static final long serialVersionUID = 1L;
    @Id
	private int  addId;
	@Column(name = "city")
	private String city;
	@Column(name = "country")
	private String country;
	@Parent
	public Person person; 
   
}
 



package com.concretepage.persistence;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Embeddable;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="person")
public class Person implements Serializable {
	private static final long serialVersionUID = 1L;
	@Id
	@Column(name="person_id")
	private int personId;
	
	@Column(name="name")
	private String name;
	
	@Embedded 
	public Address address;	
 }
 
The referenced object can be fetched as person.address.person
POSTED BY
ARVIND RAI
ARVIND RAI
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