Hi Guys,

I have the following situation while running a stateful session with Drools 4.0.7:

- I want to test that a fact with a given state doesn't exist;
- It works fine
- At a certain point I have to retract all facts and reinsert them at the stateful session - some of them actually changed and I don't want to recreate the session b/c it's expensive
- Again the fact that didn't exist when I first created the session still doesn't exist

** Problem: This time the rule that verified the non-existence is not fired because I didn't insert any fact that would retrigger it.

Rule example:

rule "022"

when

SiteLanguage(language : languageCode)
t : SiteSpecialServiceType(type : specialServiceType)
not SiteLanguageSpecialServiceType(specialServiceType == type, languageCode == language)
then
<<consequence>>
end

How could I solve or workaround that?

Thanks in advance,
Leo.