[rules-users] Problem with date

[Enda J Diggins]

Maybe something like:

rule "Prix premier semestre"
    when
        p1 : Produit( eval(dDeb.isBefore(new Date(2010,1,1) ) ) )
    then
        p1.setPrix( 10 );
        update( p1 );
end

Obviously you'll have to import whatever type of date you're using and
change the call to the constructor to match.

I may be wrong but I think you need to use eval here because you want to
create the comparison date within the rule. If you had already created the
date using "<" would be fine:

rule "Prix premier semestre"
    when
        p1 : Produit( dateProperty1 < dateProperty2 )
    then
        p1.setPrix( 10 );
        update( p1 );
end


2010/3/8 Bertrand Grottier <b_grottier at hotmail.com>

>  Hello,
> Ok, I understand the problem. dDeb is indeed a Date type.
> What is the proper/simplest way to achieve such a comparison ?
> Thank you in advance for your help.
> Regards,
> Benoît
>
> ------------------------------
> Date: Thu, 4 Mar 2010 10:01:23 +0000
> From: ejdiggins at gmail.com
> To: rules-users at lists.jboss.org
> Subject: Re: [rules-users] Problem with date
>
>
> Hi,
>
> What is the type of the dDeb field? It looks like you're trying to check if
> a date is less than a string.
>
> Enda
>
> 2010/3/3 Bertrand Grottier <b_grottier at hotmail.com>
>
>  Dear all,
>
> I am a newbie with Drools (Drools 5). I just want to make a date comparison
> but failed until now. Here is my drl file :
>
> package com.sample
>
> import com.sample.DroolsTest.Produit;
>
>
> rule "Prix premier semestre"
>     when
>         p1 : Produit( dDeb < "01-Jan-2010" )
>     then
>         p1.setPrix( 10 );
>         update( p1 );
> end
>
> I get a build error in Eclipse : Unable to create restriction.
>
> This must be an obvious problem but I am struggling for a while now.
>
> Any help would be appreciated.
>
> Benoit
>
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>
>
> --
> Enda J Diggins
>
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-- 
Enda J Diggins
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