[rules-users] From v 3.0.6 to 4.0.0

[Mark Proctor]

I can't remember them, but at the time we where shown some use cases 
that worked that way. Also we have the problem that our engine works 
differently to other engines, so we decided align with the industry norm 
and allow people to choose what they want. Oh and identity removal has a 
slight performance impact, as it means it always has to performane an 
identity check on each join attempt, even if the scenario will never 
likely occur for the current rule definition.

Mark
Geoffrey Wiseman wrote:
> On 5/15/07, *Edson Tirelli* <tirelli at post.com 
> <mailto:tirelli at post.com>> wrote:
>
>        Version 3.0.x prevents by default a single fact from matching
>     multiple patterns. For a couple of reasons we had to change the
>     default in 4.0 to allow a single fact to match multiple patterns.
>     If you don't want this to happen, you can use one of the following
>     approaches: 
>
>
> Huh - shades of Drools 2.X.
>
> If you don't mind me asking, what are the 'couple of reasons'?  If 
> there are reasons, then people might want to know before choosing to, 
> for instance, turn on the system property.
>
>   - Geoffrey
> -- 
> Geoffrey Wiseman
> ------------------------------------------------------------------------
>
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