refresh « EntityManager « JPA Q&A





1. EntityManager refresh    stackoverflow.com

I have web application using JPA. This entity manager keeps bunch of entites and suddenly I update the database from other side. I use MySQL and I use PhpMyAdmin and change ...

2. what is the purpose of refresh() in EntityManager    forum.hibernate.org

I am trying out a simple test case, But I get an exception java.lang.IllegalArgumentException: Entity not managed. Can somebody give me a test case to test how the refresh() of entitymanager works //get username User user = ObjectManager.findById(2L); //make dirty user.setUsername("xyz"); //undo dirty changes ObjectManager.refresh(user); assertEquals(eventLog.getUsername(), "john"); Also for the contains() method of the entityManager. It always returns false. I have ...