[rules-users] @propertyReactive not work when condition are coded in java

[Davide Sottara]

The engine analyzes the constraints to see which property a pattern is
"watching":

So, it expects something like:
Person( name == "alice" )

If you invoke your custom logic:
Person( myEqualComparator( ..., name, ... ) )
it's unlikely that the engine will recognize that a field is involved
and, even then, that it should react to.

The simplest solution is to force the pattern to react to the field,
doing either:

Person( myEqual(...), $n : name )

or, in alternative:

Person( myEqual(...) ) @watch( name )

Please let us know if it works for you.
Thanks
Davide


On 05/22/2014 02:49 PM, wtang wrote:
> I have rule1 and rule2 and rule1 is modifying an object whose property is
> checked in the when part of rule2 and rule2 should fire.
>
> The problem is rule2 is not firing.  When I took out the @PropertyReactive
> annotation, then rule2 will fire.
>
> After further investigation, I find the cause is because in the when part I
> am calling java function to do the comparison as suppose to using native
> operators like "==".
>
> Property Reactive seems to be not working when in the WHEN part of the rules
> we are calling java function to do the comparison as suppose to using native
> operators like ==, <, >, etc.  
>
> Please advice.
>
>
>
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