[rules-users] Reusing predicates

[Mark Proctor]

Kris Nuttycombe wrote:
> Hi, all,
>
> I have a set of rules where the LHS is essentially the same except for
> a couple of additional conditions in each case. What is the best way
> to factor out these common predicates? Should I simply create an
> intermediate fact based upon the common set of conditions and then
> reason with that fact, or is there a way of reusing them without
> adding another fact to the mix?
>   
'or' conditional element will result in subrule generation, but you 
would need to put all your logic in a single rule. You could try a DSL 
to create building blocks of your re-usable parts. Also your predicate 
logic should be in a function, so that function is re-usable.
> Thanks,
>
> Kris
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