[rules-users] StatefulKnowledgeSession insert Fact using Dynamic option ?

[Remi Barraquand]

> Shadow proxies are no longer needed in drools 5.0

Does that mean, in order to reflect Fact changes that happened outside the
engine (java side), we need to call explicitly:

session.update(FactHandle handle,Object object)

instead of putting firepropertyChange inside each setter ? since inserting
fact in dynamic mode is no longer supported.

What is the best approach when fact properties are changing really often on
the java side ?

thanks, Rémi


Remi Barraquand wrote:
> 
> Hi everyone,
> 
> Well i'm trying to upgrade my project to use the last Drools 5.0 API
> (5.0.0.M4) and i don't understand something, where is the insert(Object
> object, boolean dynamic) method gone ?
> 
> In the project i'm working on, one important aspect is to be able to
> change the properties of a fact both from Java side and from Drools side.
> That is calling 
>    myFact.setPropertyName(theValue); 
> on the java side should modify the fact in the working memory and of
> course doing 
>    modify( $myFact ) { 
>       property = theValue
>    }
> in a rule should modify the value of that fact on the java side.
> 
> In the 4.0.7 version of drools i was using firePropertyChange in each
> setter to propagate the change, and i inserted each fact in the working
> memory using the insert(myFact, true) method. However in the new 5.0 API
> this function is gone from the StatefulKnowledgeSession class
> (WorkingMemoryEntryPoint).
> 
> How could i use dynamic fact using Drools 5.0 ? what should i need to
> change, or what i did i miss ? :)
> 
> Thanks a lot for any help.
> 
> Rémi
> 


-----
________________________________________

Rémi Barraquand, PhD I.N.P.G

Projet PRIMA - Laboratoire  LIG

INRIA Grenoble Rhones-Alpes Research Centre

655 Ave de l'Europe

38330 Montbonnot, France

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