Chapter 11. The Validator Framework
The Struts framework allows input
validation to occur inside the ActionForm. To
perform validation
on data passed to a Struts application, developers must code special
validation logic inside each ActionForm class.
Although this approach works, it has some serious limitations. This
chapter introduces David Winterfeldt's
Validator framework, which was created specifically to work with the
Struts components and to help overcome some of these limitations.The Validator allows you to declaratively configure validation
routines for a Struts application without programming special
validation logic. The Validator has become so popular and widely used
by Struts developers that it has been added to the list of Jakarta
projects and to the main Struts distribution. |
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