Package org.springframework.security.config.authentication

Class AuthenticationManagerBeanDefinitionParser.NullAuthenticationProvider

java.lang.Object
org.springframework.security.config.authentication.AuthenticationManagerBeanDefinitionParser.NullAuthenticationProvider
All Implemented Interfaces:
AuthenticationProvider
Enclosing class:
AuthenticationManagerBeanDefinitionParser
public static final class AuthenticationManagerBeanDefinitionParser.NullAuthenticationProvider extends Object implements AuthenticationProvider
Provider which doesn't provide any service. Only used to prevent a configuration exception if the provider list is empty (usually because a child ProviderManager from the <http> namespace, such as OpenID, is expected to handle the request).

  • Constructor Details

    • NullAuthenticationProvider

      public NullAuthenticationProvider()

  • Method Details

    • authenticate

      public Authentication authenticate(Authentication authentication) throws AuthenticationException
      Description copied from interface: AuthenticationProvider
      Performs authentication with the same contract as AuthenticationManager.authenticate(Authentication) .
      Specified by:
      authenticate in interface AuthenticationProvider
      Parameters:
      authentication - the authentication request object.
      Returns:
      a fully authenticated object including credentials. May return null if the AuthenticationProvider is unable to support authentication of the passed Authentication object. In such a case, the next AuthenticationProvider that supports the presented Authentication class will be tried.
      Throws:
      AuthenticationException - if authentication fails.

    • supports

      public boolean supports(Class<?> authentication)
      Description copied from interface: AuthenticationProvider
      Returns true if this AuthenticationProvider supports the indicated Authentication object.

      Returning true does not guarantee an AuthenticationProvider will be able to authenticate the presented instance of the Authentication class. It simply indicates it can support closer evaluation of it. An AuthenticationProvider can still return null from the AuthenticationProvider.authenticate(Authentication) method to indicate another AuthenticationProvider should be tried.

      Selection of an AuthenticationProvider capable of performing authentication is conducted at runtime the ProviderManager.

      Specified by:
      supports in interface AuthenticationProvider
      Returns:
      true if the implementation can more closely evaluate the Authentication class presented