-users] NullPointerException with Wrapper objects
To: rules-users@lists.jboss.org
Well, like Wolfgang said, good luck with that. :) The only rules engine I
know that does this is Tibco BusinessEvents, and it's accomplished by making
a copy of your objects before inserting them into working
unacceptable for checking null for the same attribute in around 50
rules.
Shannon, can you please elaborate more about your solution or if possible
post some simple code?**
Date: Wed, 13 May 2009 08:28:53 -0700
From: greg_bar...@yahoo.com
Subject: RE: [rules-users] NullPointerException with Wrapper
All conditions of all applicable rules are evaluated when you insert an object
into working memory. This decides which rule actions can go on the agenda.
Only when a rule action is on the agenda is the salience used to determine the
order of action firing. So doing the null check in the way
From: greg_bar...@yahoo.com
Subject: Re: [rules-users] NullPointerException with Wrapper objects
To: rules-users@lists.jboss.org
All conditions of all applicable rules are evaluated when you insert an
object into working memory. This decides which rule actions can go on the
agenda
attribute. There are more than 30 attributes in the bean and using
them in LHS. Any other sophisticated way?
Date: Tue, 12 May 2009 23:15:54 -0700
From: greg_bar...@yahoo.com
Subject: Re: [rules-users] NullPointerException with Wrapper objects
To: rules-users@lists.jboss.org
All
but it performs some
calculations.
Date: Wed, 13 May 2009 09:01:05 +0200
Subject: Re: [rules-users] NullPointerException with Wrapper objects
From: wolfgang.l...@gmail.com
To: rules-users@lists.jboss.org
What about setting the field to 0 in the constructor of Salary?
Or using float
.
--
Date: Wed, 13 May 2009 09:01:05 +0200
Subject: Re: [rules-users] NullPointerException with Wrapper objects
From: wolfgang.l...@gmail.com
To: rules-users@lists.jboss.org
What about setting the field to 0 in the constructor of Salary?
Or using float (not java.lang.Float)?
-W
.
--
Date: Wed, 13 May 2009 10:36:59 +0200
Subject: Re: [rules-users] NullPointerException with Wrapper objects
From: wolfgang.l...@gmail.com
To: rules-users@lists.jboss.org
But you do control the insertion of your facts. Rather than cluttering
rules with conditions dealing with irregular values
Thanks for all you efforts :) but what is the difference between calling
function from every rule or putting null check. I give up. I am looking for
other rule engines.
Date: Wed, 13 May 2009 12:19:08 +0200
Subject: Re: [rules-users] NullPointerException with Wrapper objects
From
) be Java-based, I'd be very much
surprised if you'll find what you are looking for.
-W
--
Date: Wed, 13 May 2009 12:19:08 +0200
Subject: Re: [rules-users] NullPointerException with Wrapper objects
From: wolfgang.l...@gmail.com
To: rules-users@lists.jboss.org
Well
I am no expert on drools; however, you might want to retract loanDeduction
from the Working Memory if it is null. Your first rule determines that it
is null and then you set the value (ld = 0f); however, you should be using
an insert to put this into working memory. The other alternative is to
:
From: Shabbir Dhari sdh...@hotmail.com
Subject: RE: [rules-users] NullPointerException with Wrapper objects
To: rules-users@lists.jboss.org
Date: Wednesday, May 13, 2009, 5:44 AM
Thanks for all you efforts :) but what is the difference
between calling function from every rule or putting
your
solution or if possible post some simple code?
Date: Wed, 13 May 2009 08:28:53 -0700
From: greg_bar...@yahoo.com
Subject: RE: [rules-users] NullPointerException with Wrapper objects
To: rules-users@lists.jboss.org
Well, like Wolfgang said, good luck with that. :) The only rules
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