Re: [rules-users] Re: access to in working memory generated objects
Hi,
On Wed, Jun 18, 2008 at 1:17 PM, Alexander Claus <styjdt(a)claus4joy.de> wrote:
> I want to use rules which shall generate as a consequence a new
java
> object.
> The GUI of my application shall display the new generated objekt.
> but how can the GUI of my application get informed by the rule engine that
> it has generated a new object (Warning)? And how the GUI or any other java
> component can access this new generated object from outside?
Have a look at org.drools.event.WorkingMemoryEventListener.
I think you find yourself how to use it.
Best regards.
Alexander Claus
another approach would be to register some service as a global to your
working memory. Then, when creating the object in the RHS of your
rule, you call some method on it like this
rule "Value below threshold"
when
FactX ( property < threshold)
then
Warning warning = new Warning( "Under threshold" );
service.addWarning(warning);
insert(warning);
end
Best regards
Marcus