On 24/05/2011 09:51, Abhay B. Chaware wrote:
Could be a basic question, but thought I should get clarified.
I insert a fact say, a Computer object with some attributes ( hdd=10GB
) set, in working memory. Then I have a rule that checks if a Computer
with 10GB hdd is inserted .. if yes, then it does a logicalInsert of
an Alert object with computerId = this computer's id.
Now I would like to re-insert the same fact with HDD changed to '20gb'
and would like drools to automatically retract the Alert for this
computerId .. how do I achieve this ?
logical insertions are immutable. The act of calling "modify" will state
the fact, losing all justifications.
Mark
-abhay
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