Questions tagged as 'jpa-2.0'

I'm using JPA and Hibernate and encountering difficulties regarding querys errors. I wonder if there is a specific library for JPQL? and what are needed for projects to profile this.     

How do I, by annotations or methods to exclude, or make a update in a parent entity without being forced to delete the child entity, eg public class Produto{ @Id @GeneratedValue int id; //... @ManyToOne() //fetch.LAZY Categoria categor...