[rules-users] Batch processing large volume of Same type Of Facts

[Stephen Masters]

Generally speaking, if you are seeing combinatorial explosions as a result of matching facts of the same type, then you should be looking to add constraints to your pattern matches to reduce them.

It’s always possible that there are no additional constraints that you could apply to achieve this, however, I’m not too sure that anyone can help much without seeing some examples of your rules.

Steve


On 7 Feb 2014, at 18:35, mattmadhavan <mmadhavan at facs.org> wrote:

> Hi Stephen,
> Thank you very much for your reply! I have another requirement.
> 
> Each FACT produces set of records (ArrayList of results). Due to some
> constraint I need to keep each array set in the memory as a working fact
> because I need to have another rule that will evaluate the array list (for
> Each original FACT) and stop processing that particular after certain set of
> constraint (combination of records) have reached.
> 
> In this situation due to "cartesian' products (n*n) it does becomes
> expensive! I am thinking may be I process one FACT at a time as each FACT
> produces an ARRAY List which is a FACT it self.
> 
> Any ideas please?
> 
> Thanks
> Matt
> 
> 
> 
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