[rules-users] How to write a rule that fires when it matches against specific facts in working memory.

[Wolfgang Laun]

Accumulate functions are very well documented in the Expert manual. Look for
a section titled "Accumulate Functions".

You could also use accumulate with all the steps in inline code, which is
documented in the preceding section.

-W



On 26 January 2011 16:50, groovenarula <gnarula1 at la-z-boy.com> wrote:

>
> Thanks for outlining the approach, Edson.
>
> Unfortunately, I'm a newbie using drools, so I just need some clarification
> on what you mean by 'matchAll is your own accumulate function with the
> semantics you described.' ? Do you mean that I have to create a 'custom'
> accumulate function ?
>
> Edson, if that's the case, then I'll try to search for example of creating
> a
> custom function. When I last searched, I did find an example on the
> Internet, however, I don't think I found details of how to make the
> function
> available to the rules engine (is it as simple as including the jar in the
> classpath or do I need to take addtional steps to use Matchall in drl ?)
>
> Can you please elaborate for the benefit of a noobie ?
>
> Thanks
> Gurvinder
>
> --
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