[rules-users] Dealing with Complex objects in Drools

[JimmyM]

There was an error in the sample code i posted earlier. 
objList should have been objList2

$o2 : Object2(objList2.field1 != null) from $o1.object2

this also returns the error "unable to resolve property: field1"

Mark Proctor wrote:
> 
>    
> make sure the 'from' expression returns a collection, then this will do 
> what you want.
> 
> 
also when i use this instead (java.util.Arraylist has been imported):

$o2 : ArrayList(objList2.field1 != null) from $o1.object2

the error is:

unable to resolve property: unable to resolve token: objList2.field1 

I've inserted only the base object (object1) into working memory. 
For some reason i cant access attributes deeper than object 2. 

What am i doing wrong? 



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