Question

I am developing a spring 3 MVC application. I am using hibernate as the ORM. While defining the model, i have an ID field. I want to auto generate it in such a way that its value is the current number of rows in the table + 1. How can it be done?

Answer 1

AUTOINCREMENT column or a sequence will do the trick. In Hibernate simply annotate id with @GeneratedValue:

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;

Hibernate will automatically set the id to next available value.

See also

• Hibernate Auto Increment ID