[rules-users] Differences in how WorkingMemory is storing the objects: identity and equality

Mark Proctor mproctor at codehaus.org
Sat Feb 3 10:12:38 EST 2007


default is Identity mode, its simpy the way it determines if the fact 
already exists in the working memory.
fact.equals( fact ) is Equality mode
fact == fact is Identity mode.

Mark
nicolae oana wrote:
> Dear all,
>
> I read in Drools manual about how Working Memory stores the asserted 
> objects : Identity mode and Equality mode.
> But I'm not sure I properly understood the differences. In what 
> concerns the Equality mode, the return of a FactHandle is done only 
> when a different type of object is asserted?( a type that not exists 
> yet in HashTable?). In the rest cases nothing is happening ?
>
> Best regards,
>                  Oana.
>
>
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