How to use existing Oracle sequence to generate id in hibernate?

Question

I have legacy Oracle db with a sequence named PRODUCT_ID_SEQ.

Here is the mapping of Product class for which I need generate correct ids:<

Answer 1

The answer to the original question:

@SequenceGenerator(name="EL_SEQ", sequenceName="EL_SEQ",allocationSize=1)

It is allocationSize that sets the value to increment by.