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

[Michael Anstis]

Just thought that rule templates could also be an option for you in Guvnor -
they provide the flexibility of DRL and the multiple rules benefit of
decision tables

sent on the move

On 3 Sep 2011 21:24, "Michael Anstis" <michael.anstis at gmail.com> wrote:
> 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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