[rules-users] Function call from LHS in Drools

[Mohod, Akash]

Thanks a lot Wolfgang.

Regards,
Akash


From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: Monday, January 17, 2011 9:27 PM
To: Rules Users List
Subject: Re: [rules-users] Function call from LHS in Drools

when
                System ($users: users)
                $user : User () from $users
                eval ( "SuperUser".equals( HelperFunction.getUserType($user) ) )

You just cannot bind the result of a method/function call to a variable. Inside eval, you are in Java country, so don't use ==.

-W

2011/1/17 Mohod, Akash <Akash.Mohod at morganstanley.com<mailto:Akash.Mohod at morganstanley.com>>
Hi,

I want to do something like this in my rule : -

when
                System ($users: users)
                $user : User () from $users
                $userType : HelperFunction.getUserType($user)
                eval($userType == "SuperUser")
then
                System.out.println(" User Type is " + $userType);
end

The idea is I want to get the type of user using a static function call in the LHS. Is it possible to do so in the LHS.
I am using Drools 5.1 .

Regards,
Akash



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