In your case, best seems to be to use a return value restriction:

MyClass( $brotherDOB : brotherDOB != null,  yearBorn < (date.yearOfDate($ brotherDOB)-{years}) )

   []s
   Edson

2007/8/22, Saleem Lakhani < Saleem.Lakhani@citizensfla.com>:

Hi,

 

What is the best way of writing such a rule in drools 4.0 without using eval ? In the following rule 'date' is a global variable for my own dateUtil class and {year} is the variable I will pass.

 

brotherDOB != null, $brotherDOB : brotherDOB

 

eval(boy.getYearBorn() < (date.yearOfDate($brotherDOB )-{years}))

 

Saleem Lakhani

 

 


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