[rules-users] Help with syntax for detecting when an object exists, none of whose children match a pattern

[Tom.E.Murphy at wellsfargo.com]

As a newbie to Drools (using v4.0.7), I'm struggling a bit with the
right way to express the following concept
I have a ParentFactObject with an array of ChildFactObjects. 
The ChildFactObjects have a boolean attribute "TestMe" 
I want to pattern match all ParentFactObjects for whom all
ChildFactObjects have false for TestMe

Here's what I've tried:

rule "NoTestChildren"
	when

		$parentFactObject : ParentFactObject // parent exists
		(
		)

		not ChildFactObject	// no child exists that has
TestMe true
		(
			TestMe == true
		) from $parentFactObject.childFactObjects

	then
		log("Rule NoTestChildren fired.");
end
I get the following:
org.drools.rule.InvalidRulePackage: [66,4]: unknown:66:4 mismatched
token: [@1085,4469:4472='from',<38>,66:4]; expecting type THEN


Also tried this:

rule " NoTestChildren "
	when

		$parentFactObject : Borrower // parent exists
		(
		)

		forall ($childFactObject : ChildFactObject	// no
child exists that has TestMe true
		(
			TestMe == true
		) )from $parentFactObject. childFactObjects

	then
		log("Rule NoTestChildren fired.");
end

I've tried a series of variations with similar results.
Can anyone provide any guidance on how to do this?
Thanks in advance.

Tom Murphy

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