Hello,
some of our custom
operators need to access already inserted facts at runtime.
Therefore we extended org.drools.base.BaseEvaluator.
The provide methods, i. e.
public boolean evaluate(InternalWorkingMemory
workingMemory, InternalReadAccessor extractor, Object
object, FieldValue value),
state, amongst others, a parameter “workingMemory” of type org.drools.common.InternalWorkingMemory.
When calling workingMemory.getObjects()
we receive a “UnsupportedOperationException”. The question
is whether it is possible to access facts in a
KnwoledgeSession at runtime or not. Alternatively we could
provide the objects in question as globals and call
workingMemory.getGlobal(), but that seems to me like
somewhat bad architecture.
Any suggestions are welcome.
Many thanks,
-Matthias