private Comparable getIndexedValue(LeftTuple leftTuple) { return (Comparable) index .getDeclaration() .getExtractor() .getValue(leftTuple.get(index.getDeclaration()).getObject()); }
private Comparable getIndexedValue(RightTuple rightTuple) { return (Comparable) index.getExtractor().getValue(rightTuple.getFactHandle().getObject()); }