TextOutputCallback (Java SE 23 & JDK 23)
Description: declaration: module: java.base, package: javax.security.auth.callback, class: TextOutputCallback
Keywords: javax.security.auth.callback.TextOutputCallback class

# Class TextOutputCallback

java.lang.Object
javax.security.auth.callback.TextOutputCallback

All Implemented Interfaces:
  `Serializable`, `Callback`

public class TextOutputCallback extends Object implements Callback, Serializable

Underlying security services instantiate and pass a `TextOutputCallback` to the `handle` method of a `CallbackHandler` to display information messages, warning messages and error messages.

Since:
  1.4
See Also:
  - `CallbackHandler`
  - Serialized Form

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static final int`
  `ERROR`
  Error message.
  `static final int`
  `INFORMATION`
  Information message.
  `static final int`
  `WARNING`
  Warning message.

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `TextOutputCallback(int messageType, String message)`
  Construct a TextOutputCallback with a message type and message to be displayed.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `String`
  `getMessage()`
  Get the message to be displayed.
  `int`
  `getMessageType()`
  Get the message type.

  ### Methods declared in class java.lang.Object

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

- ## Field Details

  - ### INFORMATION

    public static final int INFORMATION
    Information message.
    See Also:
      - Constant Field Values

  - ### WARNING

    public static final int WARNING
    Warning message.
    See Also:
      - Constant Field Values

  - ### ERROR

    public static final int ERROR
    Error message.
    See Also:
      - Constant Field Values

- ## Constructor Details

  - ### TextOutputCallback

    public TextOutputCallback(int messageType, String message)
    Construct a TextOutputCallback with a message type and message to be displayed.
    Parameters:
      `messageType` - the message type (`INFORMATION`, `WARNING` or `ERROR`).
      `message` - the message to be displayed.
    Throws:
      `IllegalArgumentException` - if `messageType` is not either `INFORMATION`, `WARNING` or `ERROR`, if `message` is null, or if `message` has a length of 0.

- ## Method Details

  - ### getMessageType

    public int getMessageType()
    Get the message type.
    Returns:
      the message type (`INFORMATION`, `WARNING` or `ERROR`).

  - ### getMessage

    public String getMessage()
    Get the message to be displayed.
    Returns:
      the message to be displayed.