[hibernate-issues] [Hibernate-JIRA] Created: (JPA-10) JPA Criteria API Typesafety on equal

JPA Criteria API Typesafety on equal ------------------------------------ Key: JPA-10 URL: http://opensource.atlassian.com/projects/hibernate/browse/JPA-10 Project: Java Persistence API Issue Type: Bug Affects Versions: 1.0.0 Environment: Java 1.6.0_18 Hibernate 3.5.1-Final Reporter: Sebastian Braun Attachments: Example.zip By Using the Typesafe JPA Criteria API i _dont_ get a Compile Error by compiling the code below: EntityManagerFactory emf = Persistence.createEntityManagerFactory("hibernatetest"); EntityManager em = emf.createEntityManager(); CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<Employee> c = cb.createQuery(Employee.class); Root<Employee> root = c.from(Employee.class) // No Compile Error, but Exception on Runtime, because "name" is a String and the check parameter is an Integer Predicate condition = cb.equal(root.get(Employee_.name), 1); Obviously thats because the method in CriteriaBuilderImpl takes an Object as the second argument: public Predicate equal(Expression<?> x, Object y) {...} If this method would look like this the code above will show the correct Compile error public <T> Predicate equal(Expression<T> x, T y) {...} Corresponding Example Project is attached. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira