Section 5.2.3 Passing the Request and Response
A handler inspects the request and uses the target, requests URI or other information in selecting another handler to pass the request to. These handlers typically implement the HandlerContainer interface.
Example:
- HandlerCollection – A collection of handlers, where each handler is called regardless of the state of the request. This is typically used to pass a request to a ContextHandlerCollection and then, the a RequestLogHandler.
- HandlerList – A list of handlers which are called in turn until the request state is set as handled.
- ContextHandlerCollection – A collection of Handlers of which on is selected by best match for the context path.


