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package com.concretepage.persistence;
import javax.persistence.Column;
import javax.persistence.Embeddable;

@Embeddable
public class Animal {

	@Column(name = "name")
	private String name;
	
	@Column(name = "location")
	private String location;
	public Animal(){
	}
	public Animal(String name,String location){
		this.name=name;
		this.location=location;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getLocation() {
		return location;
	}
	public void setLocation(String location) {
		this.location = location;
	}
}
 

package com.concretepage.persistence;
import javax.persistence.AttributeOverride;
import javax.persistence.AttributeOverrides;
import javax.persistence.Column;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "elephant")
public class Elephant {
	@Id
	@Column(name = "id")
	private int id;

	@Embedded
	@AttributeOverrides({ @AttributeOverride(name = "location", column = @Column(name = "place")) })
	private Animal animal;

	public Elephant(int id,Animal animal){
		this.id=id;
		this.animal=animal;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public Animal getAnimal() {
		return animal;
	}
	public void setAnimal(Animal animal) {
		this.animal = animal;
	}
}

package com.concretepage.persistence;
import javax.persistence.Column;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="lion")
public class Lion {
	@Id
	@Column(name = "id")
	private int id;

	@Embedded
	private Animal animal;
	public Lion(int id,Animal animal){
		this.id=id;
		this.animal=animal;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public Animal getAnimal() {
		return animal;
	}
	public void setAnimal(Animal animal) {
		this.animal = animal;
	}
}

Session session = getSession();
session.beginTransaction();

Animal animal = new Animal("Lion A", "Africa");
Lion lion = new Lion(1, animal);

animal = new Animal("Elephnat A", "Asia");
Elephant elephant = new Elephant(1, animal);

session.save(lion);
session.save(elephant);

session.getTransaction().commit();
session.close();