I upgraded from 5.5.0.Final of Drools (rule engine) to 5.6.0.Final and I am
now seeing errors with globals.
We have rule constraints that access globals in a DRL; like this:
some.classpath.package2.MyType ( global_instance.invoke(this) == true )
I have `some.classpath.package.SomeType global_instance;` declared at the
top of the DRL, but it doesn't seem to be interpeting it as a global in the
rule's restriction.
So, putting this into context within, I have a DRL such as:
package my.package.example;
global some.classpath.package.SomeType global_instance;
****
rule "Example rule"
when
some.classpath.package2.MyType ( global_instance.invoke(this) == true )
then
// do something
end
****
I am getting an error from the package builder originating from the "Example
rule" specifying something like:
"can't find method MyType.global_instance()"
Once, again this did work in 5.5.0.Final, but in 5.6.0.Final I am getting a
failure trying to build the knowledge package.
It looks to me like the `global_instance` symbol is not being recognized as
a global in the DRL and is trying to be
resolved as a method of the MyType class.
So I guess it would be trying to do a
"MyType.global_instance().invoke(this)" or something.
The intent is that `global_instance` will be set for a session with an
immutable function-type of class
(invoke is an instance method though; not static). The rule restriction
uses this function/predicate to determine if some
complex criteria is true for `this` MyType instance.
I would appreciate any insight into what the issue might be. I haven't been
able to find any threads out there on a similar issue.
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