[rules-users] modify()

[Mark Proctor]

Anstis, Michael (M.) wrote:
> I *seem* to be able to still use "update" in the RHS with 4.0.5.
>   
yes update has not been removed, it's still part of the main api. If we 
removed it you would have no way to notify the engine of changes from 
outside the engine, and I expect some people might be upset if their 
drls broke if we removed it from consequences :)
> Perhaps I've got my binaries mixed up. If I get the chance I'll do a clean
> install.
>
> Thanks for the clarification - I don't want to end up confusing matters with
> my "help" ;-)
>
> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Mark Proctor
> Sent: 11 April 2008 12:51
> To: christine at christine.nl; Rules Users List
> Subject: Re: [rules-users] modify()
>
> X10 wrote:
>   
>> Hi,
>> I take it the "modify()" that's in the manual got replaced by
>> "update()"?
>>   
>>     
> The meanings have changed, but both exist to some degree. modify() is a 
> specail keyword used in the java/mvel consequence. Inside a consequence 
> it is the preferred way modify facts, so that the engine is notified. 
> Outside of consequence, in normal Java, one an object has been changed 
> you need to notify the engine, this is done via the update() method, 
> which tells the engine the fact has been updated.
>
> The main difference is that update( handle ) only takes a single 
> parameter where as modify( object ) { field1 = value1, field2 = value2 } 
> takes key/value pair comma separated list of setters. the language used 
> to apply those setters is dependant on whether you are using the mvel or 
> java dialect.
>
> Mark
>   
>> Christine
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>   
>>     
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>   
> ------------------------------------------------------------------------
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>   

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20080411/c8e6251d/attachment.html