[rules-users] threw error java.lang.ClassCastException: org.drools.reteoo.FromNode$FromMemory cannot be cast to org.drools.reteoo.BetaMemory

[Wolfgang Laun]

On 08/05/2013, mohdejaz74 <mohdejaz74 at gmail.com> wrote:
> ----------
> Snapshot#1
> ---------
> when
> 	...
> 	a   : ...
> 	exists( Foo(...) from a.b.c )
> 	foo : Foo(...) from a.b.c // same as above
> then

What is the rationale of using exists( Foo(...) from a.b.c ) preceding
foo : Foo(...) from a.b.c? Or are we duped by Foo(...) not being the
same as Foo(...)?

-W