Hibernate basic configuration example

Hibernate Configuration

This example demonstrates how to configure hibernate framework for running a simple standalone program. Here the sample program uses programmatic configuration to set all the properties required for running hibernate. Also the example uses derby as the database to connect and update the values. This is not the big change, you only have to change few parameters if you are using any other databases.

also read:

• Introduction to Hibernate
• Hibernate Interview Questions
• Interceptors in Hibernate
• Hibernate Books

The following are the jar files required to run this example:

• hibernate3.jar
• dom4j.jar
• commons-logging.jar
• derby.jar
• commons-collections.jar
• cglib.jar
• asm.jar
• cuncurrent.jar
• jta.jar

JavaBeatHibernateExample.java

package javabeat.net.hibernate;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

/**
*
* source : www.javabeat.net
*/
public class JavaBeatHibernateExample {
public static void main(String args[]){
Configuration configuration = new Configuration();
configuration.addClass(javabeat.net.hibernate.EmployeeInfo.class);
configuration.setProperty("hibernate.dialect",
"org.hibernate.dialect.DerbyDialect");
configuration.setProperty("hibernate.connection.url",
"jdbc:derby://localhost:1527/SampleDB");
configuration.setProperty("hibernate.connection.username", "root");
configuration.setProperty("hibernate.connection.driver_class",
"org.apache.derby.jdbc.ClientDriver");
configuration.setProperty("hibernate.connection.password", "root");
configuration.setProperty("hibernate.transaction.factory_class",
"org.hibernate.transaction.JDBCTransactionFactory");
configuration.setProperty("hibernate.current_session_context_class",
"thread");
configuration.setProperty("hibernate.show_sql", "true");
SessionFactory sessionFactory = configuration.buildSessionFactory();
Session session = sessionFactory.openSession();
Transaction transaction = session.beginTransaction();
transaction.begin();
EmployeeInfo employeeInfo = new EmployeeInfo();
employeeInfo.setSno(1);;
employeeInfo.setName("KamalHasan");
session.save(employeeInfo);
transaction.commit();
session.close();
}
}

EmployeeInfo.java

 package javabeat.net.hibernate;

/**
 * source : www.javabeat.net
 */
public class EmployeeInfo {
 private int sno;
 private String name;

 public String getName() {
 return name;
 }

 public void setName(String name) {
 this.name = name;
 }

 public int getSno() {
 return sno;
 }

 public void setSno(int sno) {
 this.sno = sno;
 }
}

EmployeeInfo.hbm.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
    <class name="javabeat.net.hibernate.EmployeeInfo" table="Employee_Info">
        <id name="sno" column="sno" type="java.lang.Integer">
        </id>
        <property name="name" column="name" type="java.lang.String"/>
    </class>
</hibernate-mapping>