Re: [rules-users] query or global
what are disadvantages and advantages of the following
possibillities to to
get access to working memory facts from outside:
Is there a
reason why you want to use something other than queries?
I would suggest to use queries _unless_ you have a definitive
requirement that requires something else. Queries are easy and you get
constraints for free.
Everything else is just work. ;-) If you need to use logicals, you
also have to implement an event listener in your facts to track them
properly.
Cheers
--I
Am 28.07.2008 um 15:15 schrieb thomas kukofka:
Hello again,
what are disadvantages and advantages of the following
possibillities to to
get access to working memory facts from outside:
- -uses a query:
in drl:
query "queryname"
...
end
in java code
queryResults results = workingMemory.getQueryResults( "queryname" );
- -use globals that store facts:
global java.util.HashMap service
rule "XY"
when
f: FactX ()
then
ResultFact resultFact = new ResultFact();
service.put(f.getName(), resultFact);
insert(resultFact);
end
kind regards
tom
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