Module java.base
Package javax.security.auth.callback
This package provides the classes necessary for services
to interact with applications in order to retrieve
information (authentication data including usernames
or passwords, for example) or to display information
(error and warning messages, for example).
- Since:
- 1.4
-
InterfaceDescriptionImplementations of this interface are passed to a
CallbackHandler
, allowing underlying security services the ability to interact with a calling application to retrieve specific authentication data such as usernames and passwords, or to display certain information, such as error and warning messages.An application implements aCallbackHandler
and passes it to underlying security services so that they may interact with the application to retrieve specific authentication data, such as usernames and passwords, or to display certain information, such as error and warning messages. -
ClassDescriptionUnderlying security services instantiate and pass a
ChoiceCallback
to thehandle
method of aCallbackHandler
to display a list of choices and to retrieve the selected choice(s).Underlying security services instantiate and pass aConfirmationCallback
to thehandle
method of aCallbackHandler
to ask for YES/NO, OK/CANCEL, YES/NO/CANCEL or other similar confirmations.Underlying security services instantiate and pass aLanguageCallback
to thehandle
method of aCallbackHandler
to retrieve theLocale
used for localizing text.Underlying security services instantiate and pass aNameCallback
to thehandle
method of aCallbackHandler
to retrieve name information.Underlying security services instantiate and pass aPasswordCallback
to thehandle
method of aCallbackHandler
to retrieve password information.Underlying security services instantiate and pass aTextInputCallback
to thehandle
method of aCallbackHandler
to retrieve generic text information.Underlying security services instantiate and pass aTextOutputCallback
to thehandle
method of aCallbackHandler
to display information messages, warning messages and error messages. -
ExceptionDescriptionSignals that a
CallbackHandler
does not recognize a particularCallback
.