[rules-users] Template salience

[Bertrand Grottier]

Great !
It even works with a long.
Many thanks.
Benoît

Date: Wed, 10 Mar 2010 14:34:57 +0000
From: ejdiggins at gmail.com
To: rules-users at lists.jboss.org
Subject: Re: [rules-users] Template salience

Hi,

Yes it is possible but I think the function has to return an int. Also, it should be called as follows:

rule "Periode@{row.rowNumber}"
    salience ( getNbJours("@{ddeb}", 
"@{dfin}") );

Include the stack trace from the NPE if this doesn't work.
Cheers,
Enda


2010/3/10 Bertrand Grottier <b_grottier at hotmail.com>






Hello,

Is it possible to specify a template salience such as:

function long getNbJours(String pStrDDeb, String pStrDFin)
{
    SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
    

    Date dDeb = sdf.parse(pStrDDeb) ;
    Date dFin = sdf.parse(pStrDFin) ;

    long diff = dFin.getTime() - dDeb.getTime() ;
    
    return (diff / (24 * 60 * 60 * 1000)) ;
}

template "tarification_produit"


rule "Periode@{row.rowNumber}"
    salience getNbJours("@{ddeb}", "@{dfin}")
    when
        $p : Produit(id == 1, eval( dDeb.before( getDate("@{ddeb}") ) ) )
    then

        $p.setId(2) ; 
        $p.setPrix(@{prix}) ;
        update( $p );        
end
end template

I encounter a java.lang.NullPointerException.

Thank you in advance for your help.

Regards,


Benoît
 		 	   		  
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Enda J Diggins
 		 	   		  
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