thisjoinpoint and thisJoinPointStaticPart

From viewpoint of structure of the object of the Joinpoint Class, the thisJoinpointStaticPart keep a way to retrieve the static part; such as, signature, class; of joinpoint conveniently.

Thisjoinpoint have the larger terrorism than the former. it can provide infomation, including the thisJoinpointStaticPart. Mainly, we can use it as a reference that pointer the specific object that instantiated from the object definition: class.

thisEnclosingJoinPointStaticPart refer to the invoker joinpoint, which send the message to the current matched joinpoint. and the invoker joinpoint is not limited that it's definied in the lexical source code.