Re: [rules-users] How to execute a rule only when a fact is retracted
On 17/10/2012, Greg Barton <greg_barton(a)yahoo.com> wrote:
And if you can't modify the original fact class, like Wolfie says
below,
insert a control fact that points back to the original, and have rules match
off of that:
class RetractionHandler {
public OriginalFactClass theDoomedFact;
}
It's probably sufficient to have one generic class for all kinds of doomies:
class RetractionHandler {
public Object theDoomedFact;
}
-W