Class PasswordCallback

All Implemented Interfaces:
Serializable, Callback 

public class PasswordCallback
extends Object
implements Callback, Serializable

Underlying security services instantiate and pass a PasswordCallback to the handle method of a CallbackHandler to retrieve password information.

See Also:
CallbackHandler, Serialized Form

Constructors

Constructor and Description
PasswordCallback(String prompt, boolean echoOn)

Construct a PasswordCallback with a prompt and a boolean specifying whether the password should be displayed as it is being typed.

Methods

Modifier and Type Method and Description
void clearPassword()

Clear the retrieved password.
char[] getPassword()

Get the retrieved password.
String getPrompt()

Get the prompt.
boolean isEchoOn()

Return whether the password should be displayed as it is being typed.
void setPassword(char[] password)

Set the retrieved password.

Methods inherited from class java.lang.Object

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

Constructors

PasswordCallback

public PasswordCallback(String prompt,
                        boolean echoOn)

Construct a PasswordCallback with a prompt and a boolean specifying whether the password should be displayed as it is being typed.

Parameters:
prompt - the prompt used to request the password.
echoOn - true if the password should be displayed as it is being typed.
Throws:
IllegalArgumentException - if prompt is null or if prompt has a length of 0.

Methods

getPrompt

public String getPrompt()

Get the prompt.

Returns:
the prompt.

isEchoOn

public boolean isEchoOn()

Return whether the password should be displayed as it is being typed.

Returns:
the whether the password should be displayed as it is being typed.

setPassword

public void setPassword(char[] password)

Set the retrieved password.

This method makes a copy of the input password before storing it.

Parameters:
password - the retrieved password, which may be null.
See Also:
getPassword()

getPassword

public char[] getPassword()

Get the retrieved password.

This method returns a copy of the retrieved password.

Returns:
the retrieved password, which may be null.
See Also:
setPassword(char[])

clearPassword

public void clearPassword()

Clear the retrieved password.

© 1993, 2020, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/javase/8/docs/api/javax/security/auth/callback/PasswordCallback.html