11:16 p.m.
Hi. I'm trying to figure out how to express a Condition that does the
following:
Column name: FeV1 exists
Possible values: true, false, n/a
I wish to test for the existence of an FeV1 fact and have a different
condition in the rule generated, as follows:
true, generates 'exists FeV1()'
false, generates 'not FeV1()'
n/a, generates nothing
Is there some way to do this?
Thanks,
Herm
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8:22 a.m.
n:Number((n.intValue()>0)==$param) from accumulate( FeV1(), count(1) )
-W
On 20/06/2012, Hrumph <Herman.Post(a)imail.org> wrote:
Hi. I'm trying to figure out how to express a Condition that
does the
following:
Column name: FeV1 exists
Possible values: true, false, n/a
I wish to test for the existence of an FeV1 fact and have a different
condition in the rule generated, as follows:
true, generates 'exists FeV1()'
false, generates 'not FeV1()'
n/a, generates nothing
Is there some way to do this?
Thanks,
Herm
--
View this message in context:
http://drools.46999.n3.nabble.com/Decision-Table-column-testing-for-exist...
Sent from the Drools: User forum mailing list archive at Nabble.com.
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8:53 a.m.
As an alternative that avoids the unnecessary counting of FeV1,
consider adding a helper fact type and a couple of (DRL) rules.
declare Existence
value: boolean
end
rule not2exists
when
exists FeV1()
$e: Existence( value == false )
then
modify( $e ){ setValue( true ) }
end
rule exists2not
when
not FeV1()
$e: Existence( value == true )
then
modify( $e ){ setValue( false ) }
end
Insert one Existence fact. The decitions table condition should be self-evident.
-W
On 21/06/2012, Wolfgang Laun <wolfgang.laun(a)gmail.com> wrote:
n:Number((n.intValue()>0)==$param) from accumulate( FeV1(),
count(1) )
-W
On 20/06/2012, Hrumph <Herman.Post(a)imail.org> wrote:
> Hi. I'm trying to figure out how to express a Condition that does the
> following:
>
> Column name: FeV1 exists
> Possible values: true, false, n/a
>
> I wish to test for the existence of an FeV1 fact and have a different
> condition in the rule generated, as follows:
>
> true, generates 'exists FeV1()'
> false, generates 'not FeV1()'
> n/a, generates nothing
>
> Is there some way to do this?
>
> Thanks,
>
> Herm
>
>
>
> --
> View this message in context:
>
http://drools.46999.n3.nabble.com/Decision-Table-column-testing-for-exist...
> Sent from the Drools: User forum mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
9:42 p.m.
Thanks Wolfgang, that makes sense.
Herm
-----Original Message-----
From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On
Behalf Of Wolfgang Laun
Sent: Thursday, June 21, 2012 12:53 AM
To: Rules Users List
Subject: Re: [rules-users] Decision Table column testing for exists
As an alternative that avoids the unnecessary counting of FeV1,
consider adding a helper fact type and a couple of (DRL) rules.
declare Existence
value: boolean
end
rule not2exists
when
exists FeV1()
$e: Existence( value == false )
then
modify( $e ){ setValue( true ) }
end
rule exists2not
when
not FeV1()
$e: Existence( value == true )
then
modify( $e ){ setValue( false ) }
end
Insert one Existence fact. The decitions table condition should be self-evident.
-W
On 21/06/2012, Wolfgang Laun <wolfgang.laun(a)gmail.com> wrote:
n:Number((n.intValue()>0)==$param) from accumulate( FeV1(),
count(1) )
-W
On 20/06/2012, Hrumph <Herman.Post(a)imail.org> wrote:
> Hi. I'm trying to figure out how to express a Condition that does the
> following:
>
> Column name: FeV1 exists
> Possible values: true, false, n/a
>
> I wish to test for the existence of an FeV1 fact and have a different
> condition in the rule generated, as follows:
>
> true, generates 'exists FeV1()'
> false, generates 'not FeV1()'
> n/a, generates nothing
>
> Is there some way to do this?
>
> Thanks,
>
> Herm
>
>
>
> --
> View this message in context:
>
http://drools.46999.n3.nabble.com/Decision-Table-column-testing-for-exist...
> Sent from the Drools: User forum mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
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3 comments
3 participants
participants (3)
-
Herman Post -
Hrumph
-
Wolfgang Laun