2017-11-28 21:28:53 +02:00

1.2 KiB

layout, title, folder, permalink, categories, tags
layout title folder permalink categories tags
pattern Front Controller front-controller /patterns/front-controller/ Presentation Tier
Java
Difficulty-Intermediate

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

Credits