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java-design-patterns/front-controller/index.md
Markus fdb9be1e76 Work towards #56: Add permalink to every pattern 
This makes cleaner URLs thanks to jekyll
2015-08-15 18:03:05 +02:00

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layout, title, folder, permalink, categories, tags
layout title folder permalink categories tags
pattern Front Controller front-controller /patterns/front-controller/ pattern_cat pattern_tag

Intent: Introduce a common handler for all requests for a web site. This way we can encapsulate common functionality such as security, internationalization, routing and logging in a single place.

alt text

Applicability: Use the Front Controller pattern when

  • you want to encapsulate common request handling functionality in single place
  • you want to implements dynamic request handling i.e. change routing without modifying code
  • make web server configuration portable, you only need to register the handler web server specific way

Real world examples: