Question

I have to auto generate timestamp when I am creating a new record and auto generate modified timestamp when I update a record.

can anybody tell me how do I implement this. I am using openJPA.

thanks in advance.

Answer 1

The easiest is to use @Version annotation (documentation here)

Just add the following to your entities:

@Version
private java.sql.Timestamp myTimestamp;

/// normal getters & setters here

And it will do it automatically