How to inject JPA EntityManager using spring

by

Yes, although it’s full of gotchas, since JPA is a bit peculiar. It’s very much worth reading the documentation on injecting JPA EntityManager and EntityManagerFactory, without explicit Spring dependencies in your code:

http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/orm.html#orm-jpa

This allows you to either inject the EntityManagerFactory, or else inject a thread-safe, transactional proxy of an EntityManager directly. The latter makes for simpler code, but means more Spring plumbing is required.

More Related Contents:

  1. What is this spring.jpa.open-in-view=true property in Spring Boot?
  2. Error creating bean with name ‘entityManagerFactory’ defined in class path resource : Invocation of init method failed
  3. setMaxResults for Spring-Data-JPA annotation?
  4. Spring Boot, Spring Data JPA with multiple DataSources
  5. Spring Data JPA – ZonedDateTime format for json serialization
  6. How to fetch FetchType.LAZY associations with JPA and Hibernate in a Spring Controller
  7. What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
  8. Handling soft-deletes with Spring JPA
  9. Persistence unit as RESOURCE_LOCAL or JTA?
  10. Implementing custom methods of Spring Data repository and exposing them through REST
  11. Spring – Is it possible to use multiple transaction managers in the same application?
  12. Why does Hibernate disable INSERT batching when using an IDENTITY identifier generator
  13. Spring JPA @Query with LIKE
  14. Spring-Data FETCH JOIN with Paging is not working
  15. Could not commit JPA transaction: Transaction marked as rollbackOnly
  16. Change database schema during runtime based on logged in user
  17. Why use returned instance after save() on Spring Data JPA Repository?
  18. Spring JpaRepository – Detach and Attach entity
  19. Use abstract super class as parameter for Spring data repository
  20. How to use @Transactional with Spring Data?
  21. How to map sql native query result into DTO in spring jpa repository?
  22. Spring-boot: required a bean named ‘entityManagerFactory’ that could not be found
  23. JPA using multiple database schemas
  24. java.lang.NoSuchMethodError: javax.persistence.spi.PersistenceUnitInfo.getValidationMode()Ljavax/persistence/ValidationMode;
  25. Injecting EntityManager Vs. EntityManagerFactory
  26. DAO and Service layers (JPA/Hibernate + Spring) [duplicate]
  27. How to use Spring Boot with MySQL database and JPA?
  28. java.lang.IllegalStateException: No transactional EntityManager available
  29. FetchMode join makes no difference for ManyToMany relations in spring JPA repositories
  30. How to find distinct rows with field in list using JPA and Spring?

Leave a Comment