[rules-users] Check if fact is subset of items in the rule

[Swindells, Thomas]

So you want the rule to fire if there exists a String from subset which is not in superset?

From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Kumar Pandey
Sent: 11 October 2010 13:19
To: rules-users at lists.jboss.org
Subject: [rules-users] Check if fact is subset of items in the rule

Posting a new thread for this specific problem that has been a head scratcher for me for days now.

Here is the problem space.

I have a rule that can have a superset of elements such as say "String1", "String2", "String3" , "String4". These are known in rule creation time.

Fact can have subset say "String1", "String4"

How can I form a drl to check to verify that fact is a subset of elements in the rule?

I need to not fire the rule if fact is a subset but I should  be able to add a not if I can first figure out if it is a sub set.

Any help would be greatly appreciated.

Thanks
Kumar



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