BasicTreeUI.TreeTraverseAction (Java SE 10 & JDK 10 )
Keywords: javax.swing.plaf.basic.BasicTreeUI.TreeTraverseAction class

Module java.desktop
Package javax.swing.plaf.basic

## Class BasicTreeUI.TreeTraverseAction

- java.lang.Object
- - javax.swing.AbstractAction
  - - javax.swing.plaf.basic.BasicTreeUI.TreeTraverseAction

- All Implemented Interfaces:
    `ActionListener`, `Serializable`, `Cloneable`, `EventListener`, `Action`
  Enclosing class:
    BasicTreeUI

      public class BasicTreeUI.TreeTraverseAction
      extends AbstractAction

  `TreeTraverseAction` is the action used for left/right keys. Will toggle the expandedness of a node, as well as potentially incrementing the selection.
  See Also:
    Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected int` | `direction` | Determines direction to traverse, 1 means expand, -1 means collapse.

    - ### Fields declared in class javax.swing.AbstractAction

      `changeSupport, enabled`

    - ### Fields declared in interface javax.swing.Action

      `ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `TreeTraverseAction​(int direction, String name)` | Constructs a new instance of `TreeTraverseAction`.

  - ### Method Summary

    - ### Methods declared in class javax.swing.AbstractAction

      `addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled`

    - ### Methods declared in interface javax.swing.Action

      `accept`

    - ### Methods declared in interface java.awt.event.ActionListener

      `actionPerformed`

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

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

- - ### Field Detail

    - #### direction

          protected int direction

      Determines direction to traverse, 1 means expand, -1 means collapse.

  - ### Constructor Detail

    - #### TreeTraverseAction

          public TreeTraverseAction​(int direction,
                                    String name)

      Constructs a new instance of `TreeTraverseAction`.
      Parameters:
        `direction` - the direction
        `name` - the name of action