Does using fetch with jpa queri开发者_运维知识库es have any performance boosts in the long run?
My current project uses JPA and HSQLDB. I would like to persist multiple related objcts at one go, is that by any means possible in JPA?
I want to create some sample code for JPA2 that can be run inside a Java EE container. Running those sample normally require to have a Java EE server but i want to make things easier and to run them
I\'m new to JPA/Hibernate and I\'m wondering, what is usually the best way of updating a complex entity?
I have JPA mapping to HSQLDB and persistence.xml reads as below: <persistence-unit name=\"HMC\">
here\'s my show case code: CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<Tuple> q = cb.createTupleQuery();
I have a JPA 2 query that is driving me nuts.A SurveyQuestion may have an Organization.Here\'s the mapping within SurveyQuestion
I am trying to load an entity with byte data (annotated with @Lob) from an HSQL 2.0 database using Hibernate 3.5.6. This entity is able to be saved without any problems and is loaded fine if it is in
i have the following (partial) hierarchy: @MappedSuperclass public abstract class PersistentEntity { @Id
I have an application scoped managed bean which main purpose is to serve the rest of the application with less dynamic data such as all available languages and a few more things.
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