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Tomcat 6 Developer's Guide by Damodar Chetty

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Nested components

A nested component supports the main purpose of its container. Some key nested components for a container include the following:

  • A Loader that manages a class loader that is used to load the classes needed by its container
  • A Manager that manages the sessions that are associated with its container
  • A Realm that provides access to a security domain for authenticating and authorizing users
  • A Resources component that enables the lookup of static resources associated with its container
  • A Valve component that is used to process the request and response for its container

Note

Not all of these components are applicable to all containers. For instance, a Loader is actually only used by the Context.

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