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| javax.security.auth.callback.CallbackHandler |
Needs to be implemented by classes that want to handle authentication
Callbacks. A single method handle(Callback[]) must be
provided that checks the type of the incoming Callbacks and reacts
accordingly. CallbackHandlers can be installed per application. It is
also possible to configure a system-default CallbackHandler by
setting the auth.login.defaultCallbackHandler property in the
standard security.properties file.
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Handles the actual
Callback. | |||||||||||
Handles the actual Callback. A CallbackHandler needs to
implement this method. In the method, it is free to select which Callbacks it actually wants to handle and in which way. For example, a
console-based CallbackHandler might choose to sequentially ask
the user for login and password, if it implements these Callback
s, whereas a GUI-based one might open a single dialog window for both
values. If a CallbackHandler is not able to handle a specific
Callback, it needs to throw an
UnsupportedCallbackException.
| callbacks | the array of Callbacks that need handling |
|---|
| IOException | if an I/O related error occurs |
|---|---|
| UnsupportedCallbackException | if the CallbackHandler is not able to handle a
specific Callback
|