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java-design-patterns/intercepting-filter/index.md
Markus 5ce932ceb7 Work on #213 
- properly categorize all patterns
- remove pattern list from readme
- minor fixes to readme
- removed "introduction" because its not a pattern and an error i
committed some time ago
2015-08-20 21:40:07 +02:00

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pattern Intercepting Filter intercepting-filter /patterns/intercepting-filter/ Behavioral Java

Intent: Provide pluggable filters to conduct necessary pre-processing and post-processing to requests from a client to a target

alt text

Applicability: Use the Intercepting Filter pattern when

  • a system uses pre-processing or post-processing requests
  • a system should do the authentication/ authorization/ logging or tracking of request and then pass the requests to corresponding handlers
  • you want a modular approach to configuring pre-processing and post-processing schemes