Resetting factory object

[jbeaken]

Hello,

I have a factory method on a stateful bean that by default outjects into the conversation scope.

private Integer trackCount;

@Factory(value = "trackCount")
public Integer getTrackCount() {
   trackCount= calculate();
   return trackCount;
}

At certain points during the application I wish to refresh/reset the factory value. I tried two ways to achieve this, but surprisingly none seam to work for me:

1) Call a reset method

private void resetTrackCount() {
   trackCount = null;
}

2) Use @Observer

@Observer("resetCounts")
@Factory(value = "trackCount")
public Integer getTrackCount() {
    trackCount= calculate();
    return trackCount;
}

private void resetTrackCount() {
   Events.instance().raiseEvent("resetCounts");
}

The second method would have been very elegant if it had worked! After reseting both ways, the value of trackCount holds it's previous value

Can anyone see where I'm going wrong or suggest an alternative way of achieving this?

thanks!

[mokua]

try removing

trackCount

from the Conversation, before re-setting

private void resetTrackCount() {
   Contexts.getConversationContext().put("trackCount",null);
   Events.instance().raiseEvent("resetCounts");
}

Maybe there is a better way?

[jbeaken]

That's exactly what I have done, but I don't raise the event as the factory is called from the jsf layer.

But this seams such a messy way of achieving a common problem!?

[pmuir]

This is the correct approach.

[raoul.schmidiger]

It is ...set:

Contexts.getConversationContext().set(trackCount,null);

not put:

Contexts.getConversationContext().put(trackCount,null);

but I guess people figured out.