Valve
A Valve is an atomic request processing component that is assembled into the Pipeline of a Container. The name Valve is a metaphor for a processing unit in a real world pipeline, where a valve controls and/or modifies what flows through it.
The org.apache.catalina.Valve interface defines methods for obtaining the next Valve in the pipeline; a backgroundProcess() method to execute a periodic task; and an invoke(Request, Response) method, which performs the actual processing associated with this valve.
A Valve may act on the request and response in a number of different ways, including:
- Examining and/or modifying the properties of the incoming ...
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