Thanks, it deserves investigation. There seems to be at least a bug in Guvnor -
it should create a constraint such as :

Foo( myEnum == MyEnum.someitem )

On 04/18/2013 10:19 AM, Sean Su wrote:

I am using 5.5.0.Final and I think I may have run into a bug.

Assuming I have a class Foo that has a getter which is getMyEnum().

Also I have a Enum class which happens to have the name MyEnum.

When writing rules, I have

$foo : Foo (MyEnum == MyEnum.someItem)

This line will throw NullPointerException.

I have to write it as:

$foo : Foo (getMyEnum() == MyEnum.someItem)

This statement will work just fine.

The workaround is ok for DRL. However I tested this on Guvnor and the rule editor would generate the DRL just like the first statement (MyEnum == MyEnum.someItem). So we would be out of luck there.

Has anyone ever ran into this before.

Thanks

Sean
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