[rules-users] Return value operator

[Mark Proctor]

They are simply test expressions. If the predicate or eval expression 
returns true, then its matched and the next expression/pattern is 
evaluated. Return value allows you to compare a field in a pattern 
against the results of an expression.

Mark
Mithun wrote:
> hi all,
>
>      1.  can anybody help me in understanding the usage of Return Vlaue
> operator (->) and eval operator? Suggest few examples if possible.
>
> Thanks. 
>