org.apache.shiro.authc.pam (Apache Shiro 1.3.2 API)

Interface Summary
Interface	Description
AuthenticationStrategy	A `AuthenticationStrategy` implementation assists the `ModularRealmAuthenticator` during the log-in process in a pluggable realm (PAM) environment.

Class Summary
Class	Description
AbstractAuthenticationStrategy	Abstract base implementation for Shiro's concrete `AuthenticationStrategy` implementations.
AllSuccessfulStrategy	`AuthenticationStrategy` implementation that requires all configured realms to successfully process the submitted `AuthenticationToken` during the log-in attempt.
AtLeastOneSuccessfulStrategy	`AuthenticationStrategy` implementation that requires at least one configured realm to successfully process the submitted `AuthenticationToken` during the log-in attempt.
FirstSuccessfulStrategy	`AuthenticationStrategy` implementation that only accepts the account data from the first successfully consulted Realm and ignores all subsequent realms.
ModularRealmAuthenticator	A `ModularRealmAuthenticator` delgates account lookups to a pluggable (modular) collection of `Realm`s.

Exception Summary
Exception	Description
UnsupportedTokenException	Exception thrown during the authentication process when an `AuthenticationToken` implementation is encountered that is not supported by one or more configured `Realm`s.

Package org.apache.shiro.authc.pam Description

Support for PAM, or Pluggable Authentication Modules, which is the capability to authenticate a user against multiple configurable (pluggable) modules (Shiro calls these Realms).

The primary class of interest here is the ModularRealmAuthenticator which is an Authenticator implementation that coordinates authentication attempts across one or more Realm instances.

How the ModularRealmAuthenticator actually coordinates this behavior is configurable based on your application's needs using an injectible AuthenticationStrategy.