Example of @EnableTransactionManagement in Spring
March 21, 2013
In spring , when we are using @Configuration i.e XML free configuration and need to connect to database with hibernate. We need to use @EnableTransactionManagement. This is applied on class level.
@Configuration
@EnableTransactionManagement
public class AppConfig {}
We need to create bean for HibernateTemplate and sessionFactory and HibernateTransactionManager. Find the example below.
AppConfig.javapackage com.concretepage;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.orm.hibernate3.HibernateTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import com.concretepage.persistence.User;
@Configuration
@EnableTransactionManagement
public class AppConfig {
@Bean
public User user() {
return new User();
}
@Bean
public HibernateTemplate hibTemp() {
return new HibernateTemplate(sessionFactory(), true);
}
@Bean
public SessionFactory sessionFactory() {
SessionFactory sf = new AnnotationConfiguration().configure()
.buildSessionFactory();
return sf;
}
@Bean
public HibernateTransactionManager hibTransMan(){
return new HibernateTransactionManager(sessionFactory());
}
}
package com.concretepage;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.orm.hibernate3.HibernateTemplate;
import com.concretepage.persistence.User;
public class AppTest {
public static void main(String[] args) {
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();
ctx.register(AppConfig.class);
ctx.refresh();
HibernateTemplate hibtemp= ctx.getBean(HibernateTemplate.class);
User u1= new User(1,"Ankita");
hibtemp.persist(u1);
User u2= new User(2,"Renu");
hibtemp.save(u2);
}
}
package com.concretepage.persistence;
import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.Id;
@Entity
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
private int id;
private String name;
public User(){
}
public User(int id,String name){
this.id=id;
this.name=name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
