I am trying to build a function that uses my userPrincipal name, that is my user login, and with this find the associated id in mysql user information database. Not ressource wise, but for now i can cope with this.
I have an Entity Bean linked to my database with JPA, I can find some content with :
EntityManagerFactory emf = Persistence.createEntityManagerFactory("alloPU");
EntityManager em = emf.createEntityManager();
myEntity = em.find(User.class, *id*)
Is there an equivilalent function to find an object without using the id property, but another attribute, like say the login, and then get the id from this...?
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