hi i create the application and using hibernate i it...


i create simple class and try to save the value in it...using that code


Session session = null;

try{
SessionFactory sessionFactory = new

Configuration().configure().buildSessionFactory();
session =sessionFactory.openSession();
//Create new instance of Contact and set
System.out.println("Inserting Record");

Product prd=new Product();
prd.setTitle("new Hibernate Product by softwarepattern");
prd.setProductId(3600);
prd.setUrl("http://www.google.com");
session.save(prd);
System.out.println("Done");
}catch(Exception e){
System.out.println(e.getMessage());
}finally{
// Actual contact insertion will happen at this step
session.flush();
session.close();

}



it show me that msg when i run the class but no change occur in DB i using mySQL and there is no Exception occur when i run the classs..

can any one tell me why my values not save in DB...

although if i create the DAO obj using that code


ProductDAO pdao=new ProductDAO();
List<Product> li=pdao.findAll();

System.out.println("size "+li.size());
for(Product p:li)
{
System.out.println(p.getTitle());

}



it run sucessfully in same class and sho me the out put from the table...





plzz GUIDE me how i save value from hibernate using simple java class


[/code]

I'm new to Hibernate, but I think your solution will be to open a transaction for each DML (Insert, Update, Delete):

Example:

Indeed, your problem is likely the issue of transaction demarcation.

It looks like you're expecting your DAOs to begin and end a transaction. That's not a great design pattern, as you get far too many database transactions. Instead, allow the client to demarcate the transaction, by starting and stopping the transaction.

yaa thanx fr reply...




ession.beginTransaction();
session.save(obj);
session.getTransaction().commit();
//Now check the DB for new updates of the data



its working and my transection save in DB through hibernate...
thanx...
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