SpringORM - Scoped proxies for EntityManager injected with @PersistenceContext [SPR-6684]

[spring-projects-issues]

Mauricio Noda opened SPR-6684 and commented

Instances of EntityManager injected with @PersistenceContext can´t have scoped proxies in them, creating serialization issues.

The workaround is to declare org.springframework.orm.jpa.support.SharedEntityManagerBean in the XML, configure it with <aop:scoped-proxy /> and them inject with @Autowired or @Resource.

Being able to use @PersistenceContext without the serialization issues would be nice.

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Affects: 3.0 GA

Referenced from: commits db71811

[spring-projects-issues]

Juergen Hoeller commented

As of Spring 3.0.1, @PersistenceContext's shared EntityManager is serializable itself. In other words, there is no extra scoped proxy in front: It's the EntityManager itself being serializable in conjunction with its backing EntityManagerFactory.

This relies on Spring 3.0's BeanFactory serialization feature just like #11346 and #11347 do now.

Juergen

[spring-projects-issues]

Mauricio Noda commented

Thanks! It is working perfectly in Spring 3.0.1.