Hi folks!

I'm implementing a java Web Application that store it's data on a MySql database. For the implementation, I'm using eclipse and the hibernate synchornizer plugin.

I already got success accessing the tables on the database.

But I had problems when tried to save to a specif table...
This is a User table that has some attributes like: username, firstname, lastname, email, etc.
The username attribute is the table primary key and is a String type attribute.

I created a bean for this user, setting up the required information.

At the moment that I tried to save the Bean, the hibernate returned this exception:
net.sf.hibernate.id.IdentifierGenerationException: this id generator generates long, integer, short

Do you know what is happening?

Thanks!

use generator="assigned" if you don't want the id to be autogenerated. Bad design though.