In Weblogic 10.3, how do I inject a remote EJB from one EAR into a Stateless bean of another, both EARs being deployed in the same container? Ideally I'd like to do as much as possible with annotations.
So suppose I have the following interface:
public interface HelloService {
public String hello();
}
implemented by the following EJB:
@Stateless
@Remote
public class HelloServiceBean implements HelloService {
public String hello() {
return "hello";
}
}
Suppose they're packaged and deployed in server.ear
. Now in client.ear
, I have the following:
@Stateless
public class HelloClientBean {
@EJB
HelloService helloService;
// other methods...
}
What do I need to add so that Weblogic figures out the wiring correctly between HelloClientBean
in client.ear
and HelloServiceBean
in server.ear
? Pointers to official documentations and/or books warmly welcome.
The easiest solution I've found so far is the following.
First, annotate the stateless bean with a mappedName
attribute:
@Stateless(mappedName="HelloService")
@Remote
public class HelloServiceBean implements HelloService {
public String hello() {
return "hello";
}
}
According to http://forums.oracle.com/forums/thread.jspa?threadID=800314&tstart=1, Weblogic will never create a JNDI entry for an EJB unless a JNDI name is given as the mappedName
attribute (or in the deployment descriptor, or in a proprietary annotation).
Next, you can now annotate your client field with @EJB
with a mappedName
attribute, which should be the same as the attribute on the server bean. (I am honestly baffled by this. NameNotFoundException when calling a EJB in Weblogic 10.3 suggests that I should be able to use the mappedName#interfaceName
syntax, but in my tests this doesn't work.):
@Stateless
public class HelloClientBean {
@EJB(mappedName="HelloService")
HelloService helloService;
// other methods...
}
This now works, as long as both EARs are deployed in the same container. Next I'll try to figure out the right syntax when they are deployed on different machines.
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