Python8-26 Decorator

The adorner is a well-known design pattern, which is often used in scenes where there is a demand for facets, with the classic insert log, performance test, transaction processing, and so on. Decorators are a great design for solving such problems, and with adorners, we can pull out a lot of the same code that is not relevant to the function itself and continue to reuse it. In summary, the function of an adorner is to add additional functionality to an already existing object.

Introductory http://www.cnblogs.com/rollenholt/archive/2012/05/02/2479833.html

Related Methods http://www.cnblogs.com/rhcad/archive/2011/12/21/2295507.html

Common adorner patterns include:

Parameter check

Cache

Agent

Context Provider

Python8-26 Decorator