TomEE 4 JPA 问题
我正在 TomEE 4.0.0 上尝试简单的 JPA 示例，但无法让 PersistenceContextType.EXTENDED 工作
如果我使会话 bean 无状态并保留 PersistenceContextType 那么它工作正常
@PersistenceContext(unitName = "xxx" )
private EntityManager entityManager;
如果我将会话 bean 保持为无状态，然后尝试使用这
@PersistenceContext(unitName = "xxx", type = PersistenceContextType.EXTENDED))
private EntityManager entityManager;
在部署时给了我一个错误，这完全没问题并且符合预期。
但是现在当我将我的bean设置为@Stateful时，它也会给我一个错误
Managed ejbs are not capable of using EntityManagers with EXTENTED persistence. Convert your bean to a Stateful ejb or update the "java:comp/env/com.testwebservice.TestJPAService/entityManager" PersistenceContext reference to PersistenceContextType.TRANSACTION.
有人可以帮忙吗，我对此感到非常困惑
I am trying out simple JPA example on TomEE 4.0.0 and I am not able to get PersistenceContextType.EXTENDED working
If I make my session bean Stateless and leave PersistenceContextType then it works fine
@PersistenceContext(unitName = "xxx" )
private EntityManager entityManager;
If I keep my session bean as Stateless and then try to use this
@PersistenceContext(unitName = "xxx", type = PersistenceContextType.EXTENDED))
private EntityManager entityManager;
it gives me an error while deploying, which is perfectly fine and in line with expectation.
However now when I make my bean as @Stateful, then also it gives me an error
Managed ejbs are not capable of using EntityManagers with EXTENTED persistence. Convert your bean to a Stateful ejb or update the "java:comp/env/com.testwebservice.TestJPAService/entityManager" PersistenceContext reference to PersistenceContextType.TRANSACTION.
Can some one please help, I am really confused for this
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@Stateful扩展持久化上下文在 TomEE 构建以及 Java EE TCK 中以多种方式进行了测试。可能这完全是另一回事。当您注意到
@Stateless与PersistenceContextType.EXTENDED的不正确组合时，我们会尽力在您犯下明显错误时发出警告。查看包含
的 JNDI 名称com.testwebservice.TestJPAService并考虑到它在更改为@Stateful之前是@Stateless，我的猜测是这个 bean 也是一个@WebService这是非法的。@Statefulbean 不能是@WebServicebean。如果没有适当的检查来防止这种错误，我的猜测是该 bean 实际上被部署了两次；一次作为@Statefulbean，一次作为 pojo@WebService。 pojo Web 服务是导致错误的原因。如果出现这种错误，我已提交 JIRA 供我们明确检查该条件< /a>.
@StatefulEXTENDED persistence contexts are tested in numerous ways in the TomEE build and also in the Java EE TCK.Likely this is something else completely. We do our best to warn you when you make obvious mistakes as you note with the incorrect combination of
@StatelesswithPersistenceContextType.EXTENDEDLooking at the JNDI name which contains
com.testwebservice.TestJPAServiceand given the fact it was@Statelessbefore it was changed to@Stateful, my guess is that this bean is also an@WebServicewhich is illegal.@Statefulbeans cannot be@WebServicebeans. Without a proper check to prevent this mistake, my guess is that the bean is actually being deployed twice; once as a@Statefulbean and once as an pojo@WebService. The pojo web service is the one causing the error.In case that is the error, I've filed a JIRA for us to explicitly check that condition.