Hibernate Compoundkey

package com.hibernate.venkat;

import javax.persistence.Entity;
import javax.persistence.Id;



/**
 * @author vt013s
 *
 */
@Entity
public class Accounts{


private CompoundKey compoundkey;
private int accountbalance;

@Id
public CompoundKey getCompoundkey() {
return compoundkey;
}
public void setCompoundkey(CompoundKey compoundkey) {
this.compoundkey = compoundkey;
}
public int getAccountbalance() {
return accountbalance;
}
public void setAccountbalance(int accountbalance) {
this.accountbalance = accountbalance;
}




}

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package com.hibernate.venkat;

import java.io.Serializable;

import javax.persistence.Embeddable;

@Embeddable

public class CompoundKey  implements Serializable{

/**

* 

*/

private static final long serialVersionUID = -571031490335757858L;

private int userId;

private int accountId;

public CompoundKey(int userId, int accountId) {

super();

this.userId = userId;

this.accountId = accountId;

}

public int getUserId() {

return userId;

}

public void setUserId(int userId) {

this.userId = userId;

}

public int getAccountId() {

return accountId;

}

public void setAccountId(int accountId) {

this.accountId = accountId;

}

}

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package com.hibernate.venkat;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.AnnotationConfiguration;

import org.hibernate.tool.hbm2ddl.SchemaExport;

/**

 * @author vt013s

 *

 */

public class TestAccount {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

AnnotationConfiguration config=new AnnotationConfiguration();

config.addAnnotatedClass(Accounts.class);

config.configure("hibernate.cfg.xml");

new SchemaExport(config).create(true, true);

SessionFactory sf=config.buildSessionFactory();

Session s= sf.getCurrentSession();

s.beginTransaction();

CompoundKey key=new CompoundKey(100,10000);

CompoundKey key1=new CompoundKey(101,20000);

Accounts savings= new Accounts();

savings.setCompoundkey(key);

savings.setAccountbalance(8500);

s.save(savings);

Accounts checking= new Accounts();

checking.setCompoundkey(key1);

checking.setAccountbalance(9500);

s.save(checking);

s.getTransaction().commit();

}

}

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<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration PUBLIC

        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"

        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <!-- Database connection settings -->

        <property name="connection.driver_class">oracle.jdbc.OracleDriver</property>

        <property name="connection.url">jdbc:oracle:thin:@localhost:1521:xe</property>

        <property name="connection.username">venkat</property>

        <property name="connection.password">venkat</property>

        <!-- JDBC connection pool (use the built-in) -->

        <property name="connection.pool_size">2</property>

        <!-- SQL dialect -->

        <property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>

        <!-- Enable Hibernate's current session context -->

        <property name="current_session_context_class">thread</property>

        <!-- Disable the second-level cache  -->

        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->

        <property name="show_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->

<!--         <property name="hbm2ddl.auto">create</property> -->

<!--         <mapping resource="org/hibernate/tutorial/domain/Event.hbm.xml"/> -->

<!--         <mapping resource="org/hibernate/tutorial/domain/Person.hbm.xml"/> -->

    </session-factory>

</hibernate-configuration>