On Wed, 29 Jan 2003, Gonzalo Diethelm wrote:

> What is the exact definition of Filter and Valve? Are these
> formal concepts?

A filter is a concept defined in J2EE:
A filter is an object than perform filtering tasks on either the request
to a resource (a servlet or static content), or on the response from a
resource, or both.
See:
http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/Filter.html

A valve is a concept in Turbine 3 that is part of the processing pipeline
for the response.

-Kurt


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