Filter
is new in the Servlet 2.3 spec. It is an implementation of the
Intercepting Filter design Pattern. You can read more about this pattern
in the book Core J2EE design patterns. Basically Filters allow you to add
services like user authentication easily because filters intercept the request
object heading to certain resources that you specify. This is nice because
you don't need to make your view components aware of User Authentication, a
Filter can handle that.
Glenn
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- Security with Servlet 2.3 API Andy Noble
- RE: Security with Servlet 2.3 API Glenn Kidd
- RE: Security with Servlet 2.3 API Kito D. Mann