org.mozilla.jss.util
Class NullPasswordCallback

java.lang.Object
  |
  +--org.mozilla.jss.util.NullPasswordCallback

All Implemented Interfaces:

PasswordCallback

public class NullPasswordCallback

extends java.lang.Object

implements PasswordCallback

A PasswordCallback that immediately gives up. This should be used when a user is not available to enter a password. Any operations that require a password will fail if this is used, unless the token has already been logged in manually.

See Also:

CryptoToken.login(org.mozilla.jss.util.PasswordCallback)

Inner classes inherited from class org.mozilla.jss.util.PasswordCallback

PasswordCallback.GiveUpException

Constructor Summary

NullPasswordCallback()

Method Summary

Password	getPasswordAgain(PasswordCallbackInfo info) Tries supplying a password again.
Password	getPasswordFirstAttempt(PasswordCallbackInfo info) Supplies a password.

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Constructor Detail

NullPasswordCallback

public NullPasswordCallback()

Method Detail

getPasswordFirstAttempt

public Password getPasswordFirstAttempt(PasswordCallbackInfo info)
                                 throws PasswordCallback.GiveUpException

Description copied from interface: PasswordCallback

Supplies a password. This is called on the first attempt; if it returns the wrong password, getPasswordAgain will be called on subsequent attempts.

Specified by:

getPasswordFirstAttempt in interface PasswordCallback

Following copied from interface: org.mozilla.jss.util.PasswordCallback

Parameters:

info - Information about the token that is being logged into.

Returns:

The password. This password object is owned by and will be cleared by the caller.

Throws:

PasswordCallback.GiveUpException - If the callback does not want to supply a password.

getPasswordAgain

public Password getPasswordAgain(PasswordCallbackInfo info)
                          throws PasswordCallback.GiveUpException

Description copied from interface: PasswordCallback

Tries supplying a password again. This callback will be called if the first callback returned an invalid password. It will be called repeatedly until it returns a correct password, or it gives up by throwing a GiveUpException.

Specified by:

getPasswordAgain in interface PasswordCallback

Following copied from interface: org.mozilla.jss.util.PasswordCallback

Parameters:

info - Information about the token that is being logged into.

Throws:

PasswordCallback.GiveUpException - If the callback does not want to supply a password. This may often be the case if the first attempt failed.