How to use JPA2’s @Cacheable instead of Hibernate’s @Cache

by

According to the JPA 2.0 specification, if you want to selectively cache entities using the @Cacheable annotation, you’re supposed to specify a <shared-cache-mode> in the persistence.xml (or the equivalent javax.persistence.sharedCache.mode when creating the EntityManagerFactory).

Below, a sample persistence.xml with the relevant element and properties:

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0">
  <persistence-unit name="FooPu" transaction-type="RESOURCE_LOCAL">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    ...
    <shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode>
    <properties>
      ...
      <property name="hibernate.cache.provider_class" value="org.hibernate.cache.SingletonEhCacheProvider"/>
      <property name="hibernate.cache.use_second_level_cache" value="true"/>
      <property name="hibernate.cache.use_query_cache" value="true"/>
    </properties>
  </persistence-unit>
</persistence>

Note that I’ve seen at least one issue HHH-5303 related to caching. So the above is not guaranteed 🙂

References

  • Hibernate EntityManager reference guide
  • JPA 2.0 Specification
    • Section 3.7.1 “The shared-cache-mode Element”
    • Section 11.1.7 “Cacheable Annotation”

More Related Contents:

  1. JPA 2.0 many-to-many with extra column
  2. JPA CriteriaBuilder – How to use “IN” comparison operator
  3. JPA CascadeType.ALL does not delete orphans
  4. Hibernate – @ElementCollection – Strange delete/insert behavior
  5. @OrderColumn annotation in Hibernate 3.5
  6. JPQL Constructor Expression – org.hibernate.hql.ast.QuerySyntaxException:Table is not mapped
  7. Hibernate throws org.hibernate.AnnotationException: No identifier specified for entity: com..domain.idea.MAE_MFEView
  8. What is referencedColumnName used for in JPA?
  9. How do I properly cascade save a one-to-one, bidirectional relationship on primary key in Hibernate 3.6
  10. Hibernate triggering constraint violations using orphanRemoval
  11. Change Table Name of an Entity on runtime? [duplicate]
  12. Persist java.time.Instant (JDK8) with JPA2/Hibernate
  13. How to fix the Hibernate “object references an unsaved transient instance – save the transient instance before flushing” error
  14. When and why JPA entities should implement the Serializable interface?
  15. How to remove entity with ManyToMany relationship in JPA (and corresponding join table rows)?
  16. I found JPA, or alike, don’t encourage DAO pattern
  17. Getting Database connection in pure JPA setup
  18. How to query data for Primefaces dataTable using lazy loading and pagination
  19. Hibernate/JPA – annotating bean methods vs fields [duplicate]
  20. Spring Boot & Spring Data: how are Hibernate Sessions managed?
  21. Hibernate – why use many-to-one to represent a one-to-one?
  22. Silently ignored remove()
  23. Is it possible to dynamically define column names in Hibernate / JPA?
  24. Deleted object would be re-saved by cascade (remove deleted object from associations)
  25. Invalidating JPA EntityManager session
  26. Batch inserts with JPA/EJB3
  27. Hibernate inserts duplicates into a @OneToMany collection
  28. Hibernate 3.6 – session.get() vs session.load()
  29. createEntityManager throws java.lang.NullPointerException at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus
  30. CDI injection in EntityListeners

Leave a Comment