simple hibernate example with annotations

Hibernate simple program:

Required jars:

hibernate-distribution-3.6.10.Final\hibernate3.jar

hibernate-distribution-3.6.10.Final\lib\required\antlr-2.7.6.jar

hibernate-distribution-3.6.10.Final\lib\required\commons-collections-3.1.jar

hibernate-distribution-3.6.10.Final\lib\required\dom4j-1.6.1.jar

hibernate-distribution-3.6.10.Final\lib\required\javassist-3.12.0.GA.jar

hibernate-distribution-3.6.10.Final\lib\required\jta-1.1.jar

hibernate-distribution-3.6.10.Final\lib\required\slf4j-api-1.6.1.jar

hibernate-distribution-3.6.10.Final\lib\jpa\hibernate-jpa-2.0-api-1.0.1.Final.jar

hibernate-distribution-3.6.10.Final\lib\bytecode\javassist\javassist-3.12.0.GA.jar

ojdbc14.jar

hibernate.cfg.xml

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

<!DOCTYPE hibernate-configuration PUBLIC

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

"http://www.hibernate.org/dtd/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">system</property>

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

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

<property name="connection.pool_size">1</property>

<!-- SQL dialect -->

<property name="dialect">org.hibernate.dialect.OracleDialect</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">update</property>

<mapping class="com.hibernate.model.UserDetails"/>

</session-factory>

</hibernate-configuration>

UserDetails.java

package com.hibernate.model;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

@Entity(name="USER_DETAILS")

public class UserDetails {

@Id

@Column(name="USER_ID")

private Integer userId;

public Integer getUserId() {

return userId;

}

public void setUserId(Integer userId) {

this.userId = userId;

}

@Column(name="USER_NAME")

public String getUserName() {

return userName + " from getter";

}

public void setUserName(String userName) {

this.userName = userName;

}

private String userName;

}

UserAccess.java

package com.hibernate;

import java.util.Scanner;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.cfg.Configuration;

import com.hibernate.model.UserDetails;

public class UserAccess {

public static void main(String[] args) {

// TODO Auto-generated method stub

UserDetails user = new UserDetails();

Scanner scan = new Scanner(System.in);

System.out.println("Enter the id");

int userId = scan.nextInt();

System.out.println("Enter the name");

String userName = scan.next();

user.setUserId(userId);

user.setUserName(userName);

SessionFactory factory = new Configuration().configure()

.buildSessionFactory();

Session session = factory.openSession();

session.beginTransaction();

session.save(user);

session.getTransaction().commit();

session.close();

factory.close();

}

}

sample output:

Enter the id

1

Enter the name

karthik

Hibernate: insert into USER_DETAILS (userName, USER_ID) values (?, ?)