Join point

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

In computer science, a join point is a point in the control flow of a program where the control flow can arrive via two different paths. In particular, it's a basic block that has more than one predecessor.[1] In aspect-oriented programming a set of join points is called a pointcut. A join point is a specification of when, in the corresponding main program, the aspect code should be executed.

The join point is a point of execution in the base code where the advice specified in a corresponding pointcut is applied.

Conceptually, a join point exists where a precondition for a command in Hoare logic makes an assertion parametric upon the joint and several advice supplied by the different concerns at that point in a generalized abstract process, the unified thing composed from its concrete aspects being the pointcut.

See also[edit]


  1. ^ Daniel), Cooper, Keith D. (Keith (2012). Engineering a compiler. Torczon, Linda. (2nd ed.). Amsterdam: Elsevier/Morgan Kaufmann. p. 476. ISBN 012088478X. OCLC 714113472.