given this list of attributes: - related to Intercepting Filter - supports role separation between developers .. which design pattern is being described Ans: Front Controller
My question is how Front Controller "related" to Intercepting Filter? The answer given by book refers to Core J2ee Pattern. I actually looked up that book and it only says "...is similar to the Intercepting Filter". I just cannot see how the two are related. Could anyone explain their relationship?
posted 11 years ago
I am not very sure ... but as I remember it, you usually use /intercepting Filter and Front Controller together. Front Controller ensures that there is a single point of control in the web tier, which makes it easier to place intercepting filters.
The servlet filters introduced in specs version 2.3 provided a great way for applying filters on http requests. Before version 2.3, configuring a filter for all requests was tough without a front controller.
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