Is it possible to access the outer instance of a Seam Compon

[youngm]

I have a class with methods like so:

public class SomeClass {
 public void createSomething() {
 sendAnEmail();
 }

 @Asynchronous
 public void sendAnEmail() {
 //Send an email asynchronously
 }
}

What is the recommended way to call "sendAnEmail" from createSomething so that the Asynchronous interceptor can intercept the call?

Mike

[pmuir]

AFAIK calls to this. aren't intercepted so you can't. You need to put the async method on separate component, inject the component and call cmp.sendAnEmail() - though this does seem quite convoluted. Hmmm.

[youngm]

EJB provides the context.getThis() method....perhaps ther e is some kind of Seam execution context we can make available somehow?

[pmuir]

Does it apply interceptors to getThis() - if so then the Seam interceptors will be applied and you are there...

[youngm]

I believe it does apply interceptors, however, my bean isn't an EJB. :)

[youngm]

I was just mentioning that as an idea. Perhaps Seam could provide an invocation context in ThreadLocal so I could do something like:

InvocationContext.getContext().sendAnEmail();

Just a thought.

[pmuir]

Ask Gavin what he thinks, I think that we can improve on where we are at now :)

[gavin.king]

@Name("someClass")
public class SomeClass {

 @In SomeClass someClass;

 public void createSomething() {
 someClass.sendAnEmail();
 }

 @Asynchronous
 public void sendAnEmail() {
 //Send an email asynchronously
 }
}

I *think* that should work....

[youngm]

Actually it doesn't work. It appears that MethodContextInterceptor is unwrapping the component and placing it in the method context so when you attempt to inject SomeClass it is an unwrapped instance. This is also going to cause problems if you try to do:

@Name("someClass")
public class SomeClass {

 @In SomeClass someClass;

 public void createSomething() {
 someOtherClass.createSomething();
 }

 @Asynchronous
 public void sendAnEmail() {
 //Send an email asynchronously
 }
}

@Name("someOtherClass")
public class SomeOtherClass {

 @In SomeClass someClass;

 public void createSomething() {
 someClass.sendAnEmail();
 }
}

Is this MethodContextInterceptor necessary for all component types or just Session Beans? It's currently being applied to all components except ENTITY.

[gavin.king]

Ahyes, that's true, didn't think of that.

I dunno, tough problem to solve then. Report it in JIRA I guess.

[youngm]

http://jira.jboss.org/jira/browse/JBSEAM-1642