Access UIDatascroller from EAR deployed component

[supernovasoftware.com]

I have the following Seam component bound to a richfaces dataScroller.

@Name("datascrollerUI")
public class BaseUIDatascroller implements Serializable
{
 private static final long serialVersionUID = 884462853355775648L;

 private UIDatascroller datascroller;
 public UIDatascroller getDatascroller() { return datascroller; }
 public void setDatascroller(UIDatascroller datascroller) { this.datascroller = datascroller; }

 @Observer("reset.pipe.search.datascroller")
 public void resetDatascroller()
 {
 datascroller.setPage(UIDatascroller.FIRST_FACET_NAME);
 }
}

All of my components were in one jar in the root of my ear, but since UIDatascroller is in one of the richfaces jars in WEB-INF/lib I had to put this class in a jar under WEB-INF/lib as well.

I had to raise and event to call this other component because if I reference this class directly from one of my other components there is a class loading problem.

Is there any way around this?

Here is a quote from the richfaces forum.

"ishabalov" wrote:
I guess Seam developers do not need such advanced function like you need in there samples. There is nothing wrong having Java classes in presentation tier, and your situation is perfect for such case. Backing beans must be in web tier.

Here is a link to that comment.
http://jboss.com/index.html?module=bb&op=viewtopic&t=117840

[supernovasoftware.com]

Does anyone know the best way around this?

[pmuir]

Igor is correct, putting presentation java code in the WAR is correct. Putting business logic in the ear is correct to. Making them communicate is harder (this is where you want loose coupling...). Remember that the WAR can see classes in the EAR, but not the other way around.

So, there isn't really a way around this - except designing your app nicely.

[supernovasoftware.com]

Thanks Pete.

The loose coupling with the event seems to work well. I will continue to use this approach until I find something better.

I did not know that the WAR classes could see the ear. Thanks for the tip.

Is it possible to deploy EJBs from the WAR?

[pmuir]

Not currently. EJB 3.1 will address this (yay!) Then some of this packaging nightmare will go away.

[supernovasoftware.com]

Do you know the status of EJB 3.1?

Is this months or years away from having a production ready implementation?

[pmuir]

I *believe* that we are talking around 12 months - but I'm really not sure.