[rules-users] How to count number of facts of a type in memory?

[Michael Anstis]

Sure, just look at the examples of "collect".

You could use a XLS decision table, or IIRC a guided DRL rule in Guvnor -
just not the web guided decision table.

2011/9/3 puja nandamuri <med_9501 at yahoo.com>

> Michael,
>
> ThankYou for your speedy feedback.
>
> Is it possible to count the number of fact types in a drl if not in a
> Guided decision table editor ?
>
> --- On *Sat, 9/3/11, Michael Anstis <michael.anstis at gmail.com>* wrote:
>
>
> From: Michael Anstis <michael.anstis at gmail.com>
> Subject: Re: [rules-users] How to count number of facts of a type in
> memory?
> To: "Rules Users List" <rules-users at lists.jboss.org>
> Date: Saturday, September 3, 2011, 11:27 AM
>
>
> It is not possible with the web guided decision table at this stage as you
> need to use "collect" as you rightly suspect.
>
> We have numerous improvements to complete to make the web editor more
> powerful.
>
> 2011/9/3 puja nandamuri <med_9501 at yahoo.com<http://mc/compose?to=med_9501@yahoo.com>
> >
>
> Hi,
>
> How can I count the number of facts of a partilcuar type inserted into the
> rules session?
>
> lets say, I insert several instances of fact called Asset into the rules
> session.
>
> I need to write a web guided decision table that outputs a specifc text
> value in an action column based on the number of assets in memory.
>
>
>
> numberofAssets      result
>
> 1                            result1
> 2                            result2
> 3                            result3
>
> How can I create a condition column that counts the number of Assets in
> memory ?
>
>
>
> question2:
>
> If I want to write a drl  that needs to count number of Assets in memory
> and print that value, can I use a collect from or is it only used with a
> Collection ?
>
> As always ,
>
>  Thank You all for your fast responses and ideas.
>
> Thanks,
>
> Ram
>
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