[rules-users] object creation

[thomas kukofka]

Hello,

I have a rule which creates an object in the consequence part and updates
this object each time teh rule is executed. So the object has to be created
only the first time.
So I always need two rules, one init rule which creates the object if it
doesn't exist yet and one if it already exists and it should only be
updated:

rule "init rule"
when
   "condition"
   AND
   not OutputObject()
then
   OutputObject oo = new OutputObject();
   insert(oo);

rule "update rule"
when
   "condition"
   AND
   oo: OutputObject()
then
   #do something with the object
   update(oo);

But is it really neccessary to write an extra rule only to create the
output-fact initially? Is it possible/good style to make this in one single
rule?

Appreciate your help.

Regards
Thomas
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