A software example
The Django framework uses decorators to a great extent. An example is the View decorator. Django's View decorators can be used for [j.mp/djangodec]:
- Restricting access to views based on the HTTP request
 - Controlling the caching behavior on specific views
 - Controlling compression on a per-view basis
 - Controlling caching based on specific HTTP request headers
 
The Grok framework also uses decorators for achieving different goals such as [j.mp/grokdeco]:
- Registering a function as an event subscriber
 - Protecting a method with a specific permission
 - Implementing the Adapter pattern