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With the new EJB 3.1 spec is it possible to inject an EJB into a pojo? I know in EJB 3.0 the @EJB annotation could be used to inject an EJB but this did not work on simple pojos.
If it is not do I have to look the bean up in JNDI as I know you cannot simple use the new keyword.
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@EJB injects EJBs only, but @Inject can be used to inject POJOs rather than EJBs. However, @Inject requires that your archive be a BDA (contain beans. xml for EE 6, or implicitly in EE 7). @Inject also has additional CDI-specific capabilities (scopes, interceptors, etc.), but those capabilities incur extra overhead.
To facilitate test driven development, the EJB 3.0 specification allows you to use annotations to inject dependencies through annotations on fields or setter methods.
Like resource injection, you can inject Session bean references into another EJB or other managed class using annotations or deployment XML. If you prefer annotations you can use @javax. ejb. EJB annotations to inject either remote or local EJB references.
EJB 3.0 specification provides annotations, which can be applied on fields or setter methods to inject dependencies. EJB Container uses the global JNDI registry to locate the dependency. Following annotations are used in EJB 3.0 for dependency injection. @EJB − used to inject other EJB reference.
With the new EJB 3.1 spec is it possible to inject an EJB into a pojo? I know in EJB 3.0 the @EJB annotation could be used to inject an EJB but this did not work on simple pojos.
Injection of EJB into an POJO is possible IF you use JSR-299 (Java Contexts and Dependency Injection) i.e. if your POJO is a CDI managed bean. In that case, you could do:
@Inject MyEJB service
But this is not an EJB 3.1 feature, this comes from CDI. And if you're not using CDI, you'll have to do a lookup.
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Yes, use JNDI lookup.
Since your POJO is created by you (I assume), the container is not responsible for injecting the dependencies.
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