raiseEvent and bijection

[jbuechel]

How can I raise an event, modify an object within the called event method and get the modified object outjected back to the origin instance?

I'm trying to raise an event as following:

Class A:

@In(required = false)
@Out(required = false)
private MappingRule mappingRuleSelection;

public void accept() {
  log.debug("accept() called");
  mappingRuleSelection.setMappingProject(mappingProjectSelection);
  mappingRuleSelection.setActions(actions);
  Events.instance().raiseEvent("valueTuples.accept");
  log.debug(mappingRuleSelection);
}

This class is observing the event and modifying the object.

Class B:

@In(required = false)
@Out(required = false)
private MappingRule mappingRuleSelection;

@Observer("valueTuples.accept")
public void accept() {
  log.debug("accept() called");
  
  mappingRuleSelection = ValueTupleHelper.convertMappingRule(mappingRuleSelection);
  log.debug(mappingRuleSelection);
}

Back to class A the mappingRuleSelection object is still the same as before raising the event. I would expect it to be changed (injected again) after the event is completed, though.

Is it possible to do what I whant? What am I doing wrong?
Some hints would be very appreciated.

[jbuechel]

Found a solution for this:

@In(required = false)
@Out(required = false)
private MappingRule mappingRuleSelection;

public void accept() {
  log.debug("accept() called");
  mappingRuleSelection.setMappingProject(mappingProjectSelection);
  mappingRuleSelection.setActions(actions);
  Events.instance().raiseEvent("valueTuples.accept");
  
  //look it up manually
  mappingRuleSelection = (MappingRule) Contexts.lookupInStatefulContexts("mappingRuleSelection");

  log.debug(mappingRuleSelection);
}

Can someone tell me, is this the (correct) way to do it?

[ivat]

Hi,

You can use :

public void accept() {
   ....
   Events.instance().raiseEvent("valueTuples.accept", mappingRuleSelection);
   ...
}

@Observer("valueTuples.accept")
public void accept(MappingRule mappingRuleSelection) {
  log.debug("accept() called");
  log.debug(mappingRuleSelection);
}

Regards