JPQL and SQL Criteria Api

Question

JPA 1.0 specification is not defining the Criteria API which provides a programmatic approach for creating and modifying JPA Queries. Is there any API for building SQL and JPQL Queries like the way Hibernate Criteria Api is doing?

Answer 1

I found what I wanted.

http://source.mysema.com/display/querydsl/Querydsl

Thanks

Answer 2

Querydsl is an API for type-safe construction of HQL (extended JPAQL), JDOQL and SQL queries. It can be seen as a type-safe of SQL and Criteria style querying APIs.

Answer 3

I have modified the Hibernate Criteria API to generate JPQL queries. Name of my project is Criteria2JPQL:

https://sourceforge.net/projects/criteria2jpql/