My entities are: @Entity public class ReportSnapshot extends LightEntity { @Id @GeneratedValue private long id;
Assume there are two entities with ManyToOne relation: @Entity public class A { private long code; @Id @GeneratedValue(strategy=GenerationType.AUTO)
I want to do something like this: 开发者_高级运维select count(*) from (select ...) (As it would be in SQL), but in JPA.
I am using JPA 2 with hibernate as the vendor. I have 2 entities, Group and GroupFilter. I have a one-to-one bidirectional mapping between them with a join column in GroupFilter referencing Group. Whi
I am using Hibernate 3.6, JPA 2.0, and Spring 3.0.6. I have fields in my objects like the following: class PersonContact {
I want to do the following: select count(t) from Ticket t where t.id in (select st.id from Ticket st group by st.owner)
Can I create an attribute without relation with DB Table in a 开发者_Go百科Entity ? If it can, which annotation should I use ?Attributes that are part of a persistent entity but not intended to be pe
I have an app using JSF 2, JPA 2 and EJB 3.1 running on GlassFish v3 (so it uses EclipseLink 2). This application has two JPA entities, Person and Message and each Message has a reference for two Pers
I have some classes (entities) with methods annotated by @PostLoad, @PrePersist etc. and classes has @EntityListeners annotation. I want to disable processing of callback methods and listeners in my t
Let\'s start with an example : In my JPA entity public class User { @Pattern(\"^([0-9a-zA-Z]([-.\\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\\w]*[0-9a-zA-Z]\\.)+[a-zA-Z]{2,9})$\", message=\"invalidEmailResou
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