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Chapter 4. Valves
4.1. About Valves
A Valve is a Java class that gets inserted into the request processing pipeline for an application. It is inserted in the pipeline before servlet filters. Valves can make changes to the request before passing it on or perform other processing such as authentication or even canceling the request.
Valves can be configured at the server level or at the application level. The only difference is in how they are configured and packaged.
- Global Valves are configured at the server level and apply to all applications deployed to the server. Instructions to configure Global Valves are located in the Administration and Configuration Guide for JBoss EAP.
- Valves configured at the application level are packaged with the application deployment and only affect the specific application. Instructions to configure Valves at the application level are located in the Development Guide for JBoss EAP.
Version 6.1.0 and later supports global valves.
