JTree.AccessibleJTree.AccessibleJTreeNode (Java Platform SE 8 )
Keywords: javax.swing.JTree.AccessibleJTree.AccessibleJTreeNode class
Date: 2015-11-18

javax.swing

## Class JTree.AccessibleJTree.AccessibleJTreeNode

- java.lang.Object
- - javax.accessibility.AccessibleContext
  - - javax.swing.JTree.AccessibleJTree.AccessibleJTreeNode

- All Implemented Interfaces:
    Accessible, AccessibleAction, AccessibleComponent, AccessibleSelection
  Enclosing class:
    JTree.AccessibleJTree

      protected class JTree.AccessibleJTree.AccessibleJTreeNode
      extends AccessibleContext
      implements Accessible, AccessibleComponent, AccessibleSelection, AccessibleAction

  This class implements accessibility support for the `JTree` child. It provides an implementation of the Java Accessibility API appropriate to tree nodes.

- - ### Field Summary

    - ### Fields inherited from class javax.accessibility.AccessibleContext

      `ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName`

    - ### Fields inherited from interface javax.accessibility.AccessibleAction

      `CLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AccessibleJTreeNode(JTree t, TreePath p, Accessible ap)` Constructs an AccessibleJTreeNode

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addAccessibleSelection(int i)` Adds the specified selected item in the object to the object's selection.
    `void` | `addFocusListener(FocusListener l)` Adds the specified focus listener to receive focus events from this component.
    `void` | `addPropertyChangeListener(PropertyChangeListener l)` Add a PropertyChangeListener to the listener list.
    `void` | `clearAccessibleSelection()` Clears the selection in the object, so that nothing in the object is selected.
    `boolean` | `contains(Point p)` Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
    `boolean` | `doAccessibleAction(int i)` Perform the specified Action on the tree node.
    `AccessibleAction` | `getAccessibleAction()` Get the AccessibleAction associated with this object.
    `int` | `getAccessibleActionCount()` Returns the number of accessible actions available in this tree node.
    `String` | `getAccessibleActionDescription(int i)` Return a description of the specified action of the tree node.
    `Accessible` | `getAccessibleAt(Point p)` Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
    `Accessible` | `getAccessibleChild(int i)` Return the specified Accessible child of the object.
    `int` | `getAccessibleChildrenCount()` Returns the number of accessible children in the object.
    `AccessibleComponent` | `getAccessibleComponent()` Get the AccessibleComponent associated with this object.
    `AccessibleContext` | `getAccessibleContext()` Get the AccessibleContext associated with this tree node.
    `String` | `getAccessibleDescription()` Get the accessible description of this object.
    `int` | `getAccessibleIndexInParent()` Get the index of this object in its accessible parent.
    `String` | `getAccessibleName()` Get the accessible name of this object.
    `Accessible` | `getAccessibleParent()` Get the Accessible parent of this object.
    `AccessibleRole` | `getAccessibleRole()` Get the role of this object.
    `AccessibleSelection` | `getAccessibleSelection()` Get the AccessibleSelection associated with this object if one exists.
    `Accessible` | `getAccessibleSelection(int i)` Returns an Accessible representing the specified selected item in the object.
    `int` | `getAccessibleSelectionCount()` Returns the number of items currently selected.
    `AccessibleStateSet` | `getAccessibleStateSet()` Get the state set of this object.
    `AccessibleText` | `getAccessibleText()` Get the AccessibleText associated with this object if one exists.
    `AccessibleValue` | `getAccessibleValue()` Get the AccessibleValue associated with this object if one exists.
    `Color` | `getBackground()` Get the background color of this object.
    `Rectangle` | `getBounds()` Gets the bounds of this object in the form of a Rectangle object.
    `Cursor` | `getCursor()` Gets the Cursor of this object.
    `Font` | `getFont()` Gets the Font of this object.
    `FontMetrics` | `getFontMetrics(Font f)` Gets the FontMetrics of this object.
    `Color` | `getForeground()` Get the foreground color of this object.
    `Locale` | `getLocale()` Gets the locale of the component.
    `Point` | `getLocation()` Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
    `protected Point` | `getLocationInJTree()`
    `Point` | `getLocationOnScreen()` Returns the location of the object on the screen.
    `Dimension` | `getSize()` Returns the size of this object in the form of a Dimension object.
    `boolean` | `isAccessibleChildSelected(int i)` Returns true if the current child of this object is selected.
    `boolean` | `isEnabled()` Determines if the object is enabled.
    `boolean` | `isFocusTraversable()` Returns whether this object can accept focus or not.
    `boolean` | `isShowing()` Determines if the object is showing.
    `boolean` | `isVisible()` Determines if the object is visible.
    `void` | `removeAccessibleSelection(int i)` Removes the specified selected item in the object from the object's selection.
    `void` | `removeFocusListener(FocusListener l)` Removes the specified focus listener so it no longer receives focus events from this component.
    `void` | `removePropertyChangeListener(PropertyChangeListener l)` Remove a PropertyChangeListener from the listener list.
    `void` | `requestFocus()` Requests focus for this object.
    `void` | `selectAllAccessibleSelection()` Causes every selected item in the object to be selected if the object supports multiple selections.
    `void` | `setAccessibleDescription(String s)` Set the accessible description of this object.
    `void` | `setAccessibleName(String s)` Set the localized accessible name of this object.
    `void` | `setBackground(Color c)` Set the background color of this object.
    `void` | `setBounds(Rectangle r)` Sets the bounds of this object in the form of a Rectangle object.
    `void` | `setCursor(Cursor c)` Sets the Cursor of this object.
    `void` | `setEnabled(boolean b)` Sets the enabled state of the object.
    `void` | `setFont(Font f)` Sets the Font of this object.
    `void` | `setForeground(Color c)` Sets the foreground color of this object.
    `void` | `setLocation(Point p)` Sets the location of the object relative to the parent.
    `void` | `setSize(Dimension d)` Resizes this object so that it has width and height.
    `void` | `setVisible(boolean b)` Sets the visible state of the object.

    - ### Methods inherited from class javax.accessibility.AccessibleContext

      `firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, setAccessibleParent`

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### AccessibleJTreeNode

          public AccessibleJTreeNode(JTree t,
                                     TreePath p,
                                     Accessible ap)

      Constructs an AccessibleJTreeNode
      Since:
        1.4

  - ### Method Detail

    - #### getAccessibleContext

          public AccessibleContext getAccessibleContext()

      Get the AccessibleContext associated with this tree node. In the implementation of the Java Accessibility API for this class, return this object, which is its own AccessibleContext.
      Specified by:
        `getAccessibleContext` in interface `Accessible`
      Returns:
        this object

    - #### getAccessibleName

          public String getAccessibleName()

      Get the accessible name of this object.
      Overrides:
        `getAccessibleName` in class `AccessibleContext`
      Returns:
        the localized name of the object; null if this object does not have a name
      See Also:
        `AccessibleContext.setAccessibleName(java.lang.String)`

    - #### setAccessibleName

          public void setAccessibleName(String s)

      Set the localized accessible name of this object.
      Overrides:
        `setAccessibleName` in class `AccessibleContext`
      Parameters:
        `s` - the new localized name of the object.
      See Also:
        `AccessibleContext.getAccessibleName()`, `AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)`

    - #### getAccessibleDescription

          public String getAccessibleDescription()

      Get the accessible description of this object.
      Overrides:
        `getAccessibleDescription` in class `AccessibleContext`
      Returns:
        the localized description of the object; null if this object does not have a description
      See Also:
        `AccessibleContext.setAccessibleDescription(java.lang.String)`

    - #### setAccessibleDescription

          public void setAccessibleDescription(String s)

      Set the accessible description of this object.
      Overrides:
        `setAccessibleDescription` in class `AccessibleContext`
      Parameters:
        `s` - the new localized description of the object
      See Also:
        `AccessibleContext.setAccessibleName(java.lang.String)`, `AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)`

    - #### getAccessibleRole

          public AccessibleRole getAccessibleRole()

      Get the role of this object.
      Specified by:
        `getAccessibleRole` in class `AccessibleContext`
      Returns:
        an instance of AccessibleRole describing the role of the object
      See Also:
        `AccessibleRole`

    - #### getAccessibleStateSet

          public AccessibleStateSet getAccessibleStateSet()

      Get the state set of this object.
      Specified by:
        `getAccessibleStateSet` in class `AccessibleContext`
      Returns:
        an instance of AccessibleStateSet containing the current state set of the object
      See Also:
        `AccessibleState`

    - #### getAccessibleParent

          public Accessible getAccessibleParent()

      Get the Accessible parent of this object.
      Overrides:
        `getAccessibleParent` in class `AccessibleContext`
      Returns:
        the Accessible parent of this object; null if this object does not have an Accessible parent

    - #### getAccessibleIndexInParent

          public int getAccessibleIndexInParent()

      Get the index of this object in its accessible parent.
      Specified by:
        `getAccessibleIndexInParent` in class `AccessibleContext`
      Returns:
        the index of this object in its parent; -1 if this object does not have an accessible parent.
      See Also:
        `getAccessibleParent()`

    - #### getAccessibleChildrenCount

          public int getAccessibleChildrenCount()

      Returns the number of accessible children in the object.
      Specified by:
        `getAccessibleChildrenCount` in class `AccessibleContext`
      Returns:
        the number of accessible children in the object.

    - #### getAccessibleChild

          public Accessible getAccessibleChild(int i)

      Return the specified Accessible child of the object.
      Specified by:
        `getAccessibleChild` in class `AccessibleContext`
      Parameters:
        `i` - zero-based index of child
      Returns:
        the Accessible child of the object
      See Also:
        `AccessibleContext.getAccessibleChildrenCount()`

    - #### getLocale

          public Locale getLocale()

      Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.
      Specified by:
        `getLocale` in class `AccessibleContext`
      Returns:
        This component's locale. If this component does not have a locale, the locale of its parent is returned.
      Throws:
        `IllegalComponentStateException` - If the Component does not have its own locale and has not yet been added to a containment hierarchy such that the locale can be determined from the containing parent.
      See Also:
        `Component.setLocale(java.util.Locale)`

    - #### addPropertyChangeListener

          public void addPropertyChangeListener(PropertyChangeListener l)

      Add a PropertyChangeListener to the listener list. The listener is registered for all properties.
      Overrides:
        `addPropertyChangeListener` in class `AccessibleContext`
      Parameters:
        `l` - The PropertyChangeListener to be added
      See Also:
        `AccessibleContext.ACCESSIBLE_NAME_PROPERTY`, `AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY`, `AccessibleContext.ACCESSIBLE_STATE_PROPERTY`, `AccessibleContext.ACCESSIBLE_VALUE_PROPERTY`, `AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY`, `AccessibleContext.ACCESSIBLE_TEXT_PROPERTY`, `AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY`

    - #### removePropertyChangeListener

          public void removePropertyChangeListener(PropertyChangeListener l)

      Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.
      Overrides:
        `removePropertyChangeListener` in class `AccessibleContext`
      Parameters:
        `l` - The PropertyChangeListener to be removed

    - #### getAccessibleAction

          public AccessibleAction getAccessibleAction()

      Get the AccessibleAction associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleAction interface on behalf of itself.
      Overrides:
        `getAccessibleAction` in class `AccessibleContext`
      Returns:
        this object
      See Also:
        `AccessibleAction`

    - #### getAccessibleComponent

          public AccessibleComponent getAccessibleComponent()

      Get the AccessibleComponent associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleComponent interface on behalf of itself.
      Overrides:
        `getAccessibleComponent` in class `AccessibleContext`
      Returns:
        this object
      See Also:
        `AccessibleComponent`

    - #### getAccessibleSelection

          public AccessibleSelection getAccessibleSelection()

      Get the AccessibleSelection associated with this object if one exists. Otherwise return null.
      Overrides:
        `getAccessibleSelection` in class `AccessibleContext`
      Returns:
        the AccessibleSelection, or null
      See Also:
        `AccessibleSelection`

    - #### getAccessibleText

          public AccessibleText getAccessibleText()

      Get the AccessibleText associated with this object if one exists. Otherwise return null.
      Overrides:
        `getAccessibleText` in class `AccessibleContext`
      Returns:
        the AccessibleText, or null
      See Also:
        `AccessibleText`

    - #### getAccessibleValue

          public AccessibleValue getAccessibleValue()

      Get the AccessibleValue associated with this object if one exists. Otherwise return null.
      Overrides:
        `getAccessibleValue` in class `AccessibleContext`
      Returns:
        the AccessibleValue, or null
      See Also:
        `AccessibleValue`

    - #### getBackground

          public Color getBackground()

      Get the background color of this object.
      Specified by:
        `getBackground` in interface `AccessibleComponent`
      Returns:
        the background color, if supported, of the object; otherwise, null
      See Also:
        `AccessibleComponent.setBackground(java.awt.Color)`

    - #### setBackground

          public void setBackground(Color c)

      Set the background color of this object.
      Specified by:
        `setBackground` in interface `AccessibleComponent`
      Parameters:
        `c` - the new Color for the background
      See Also:
        `AccessibleComponent.setBackground(java.awt.Color)`

    - #### getForeground

          public Color getForeground()

      Get the foreground color of this object.
      Specified by:
        `getForeground` in interface `AccessibleComponent`
      Returns:
        the foreground color, if supported, of the object; otherwise, null
      See Also:
        `AccessibleComponent.setForeground(java.awt.Color)`

    - #### setForeground

          public void setForeground(Color c)

      Description copied from interface: `AccessibleComponent`
      Sets the foreground color of this object.
      Specified by:
        `setForeground` in interface `AccessibleComponent`
      Parameters:
        `c` - the new Color for the foreground
      See Also:
        `AccessibleComponent.getForeground()`

    - #### getCursor

          public Cursor getCursor()

      Description copied from interface: `AccessibleComponent`
      Gets the Cursor of this object.
      Specified by:
        `getCursor` in interface `AccessibleComponent`
      Returns:
        the Cursor, if supported, of the object; otherwise, null
      See Also:
        `AccessibleComponent.setCursor(java.awt.Cursor)`

    - #### setCursor

          public void setCursor(Cursor c)

      Description copied from interface: `AccessibleComponent`
      Sets the Cursor of this object.
      Specified by:
        `setCursor` in interface `AccessibleComponent`
      Parameters:
        `c` - the new Cursor for the object
      See Also:
        `AccessibleComponent.getCursor()`

    - #### getFont

          public Font getFont()

      Description copied from interface: `AccessibleComponent`
      Gets the Font of this object.
      Specified by:
        `getFont` in interface `AccessibleComponent`
      Returns:
        the Font,if supported, for the object; otherwise, null
      See Also:
        `AccessibleComponent.setFont(java.awt.Font)`

    - #### setFont

          public void setFont(Font f)

      Description copied from interface: `AccessibleComponent`
      Sets the Font of this object.
      Specified by:
        `setFont` in interface `AccessibleComponent`
      Parameters:
        `f` - the new Font for the object
      See Also:
        `AccessibleComponent.getFont()`

    - #### getFontMetrics

          public FontMetrics getFontMetrics(Font f)

      Description copied from interface: `AccessibleComponent`
      Gets the FontMetrics of this object.
      Specified by:
        `getFontMetrics` in interface `AccessibleComponent`
      Parameters:
        `f` - the Font
      Returns:
        the FontMetrics, if supported, the object; otherwise, null
      See Also:
        `AccessibleComponent.getFont()`

    - #### isEnabled

          public boolean isEnabled()

      Description copied from interface: `AccessibleComponent`
      Determines if the object is enabled. Objects that are enabled will also have the AccessibleState.ENABLED state set in their AccessibleStateSets.
      Specified by:
        `isEnabled` in interface `AccessibleComponent`
      Returns:
        true if object is enabled; otherwise, false
      See Also:
        `AccessibleComponent.setEnabled(boolean)`, `AccessibleContext.getAccessibleStateSet()`, `AccessibleState.ENABLED`, `AccessibleStateSet`

    - #### setEnabled

          public void setEnabled(boolean b)

      Description copied from interface: `AccessibleComponent`
      Sets the enabled state of the object.
      Specified by:
        `setEnabled` in interface `AccessibleComponent`
      Parameters:
        `b` - if true, enables this object; otherwise, disables it
      See Also:
        `AccessibleComponent.isEnabled()`

    - #### isVisible

          public boolean isVisible()

      Description copied from interface: `AccessibleComponent`
      Determines if the object is visible. Note: this means that the object intends to be visible; however, it may not be showing on the screen because one of the objects that this object is contained by is currently not visible. To determine if an object is showing on the screen, use isShowing().

      Objects that are visible will also have the AccessibleState.VISIBLE state set in their AccessibleStateSets.

      Specified by:
        `isVisible` in interface `AccessibleComponent`
      Returns:
        true if object is visible; otherwise, false
      See Also:
        `AccessibleComponent.setVisible(boolean)`, `AccessibleContext.getAccessibleStateSet()`, `AccessibleState.VISIBLE`, `AccessibleStateSet`

    - #### setVisible

          public void setVisible(boolean b)

      Description copied from interface: `AccessibleComponent`
      Sets the visible state of the object.
      Specified by:
        `setVisible` in interface `AccessibleComponent`
      Parameters:
        `b` - if true, shows this object; otherwise, hides it
      See Also:
        `AccessibleComponent.isVisible()`

    - #### isShowing

          public boolean isShowing()

      Description copied from interface: `AccessibleComponent`
      Determines if the object is showing. This is determined by checking the visibility of the object and its ancestors. Note: this will return true even if the object is obscured by another (for example, it is underneath a menu that was pulled down).
      Specified by:
        `isShowing` in interface `AccessibleComponent`
      Returns:
        true if object is showing; otherwise, false

    - #### contains

          public boolean contains(Point p)

      Description copied from interface: `AccessibleComponent`
      Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
      Specified by:
        `contains` in interface `AccessibleComponent`
      Parameters:
        `p` - the Point relative to the coordinate system of the object
      Returns:
        true if object contains Point; otherwise false
      See Also:
        `AccessibleComponent.getBounds()`

    - #### getLocationOnScreen

          public Point getLocationOnScreen()

      Description copied from interface: `AccessibleComponent`
      Returns the location of the object on the screen.
      Specified by:
        `getLocationOnScreen` in interface `AccessibleComponent`
      Returns:
        the location of the object on screen; null if this object is not on the screen
      See Also:
        `AccessibleComponent.getBounds()`, `AccessibleComponent.getLocation()`

    - #### getLocationInJTree

          protected Point getLocationInJTree()

    - #### getLocation

          public Point getLocation()

      Description copied from interface: `AccessibleComponent`
      Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
      Specified by:
        `getLocation` in interface `AccessibleComponent`
      Returns:
        An instance of Point representing the top-left corner of the object's bounds in the coordinate space of the screen; null if this object or its parent are not on the screen
      See Also:
        `AccessibleComponent.getBounds()`, `AccessibleComponent.getLocationOnScreen()`

    - #### setLocation

          public void setLocation(Point p)

      Description copied from interface: `AccessibleComponent`
      Sets the location of the object relative to the parent.
      Specified by:
        `setLocation` in interface `AccessibleComponent`
      Parameters:
        `p` - the new position for the top-left corner
      See Also:
        `AccessibleComponent.getLocation()`

    - #### getBounds

          public Rectangle getBounds()

      Description copied from interface: `AccessibleComponent`
      Gets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.
      Specified by:
        `getBounds` in interface `AccessibleComponent`
      Returns:
        A rectangle indicating this component's bounds; null if this object is not on the screen.
      See Also:
        `AccessibleComponent.contains(java.awt.Point)`

    - #### setBounds

          public void setBounds(Rectangle r)

      Description copied from interface: `AccessibleComponent`
      Sets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.
      Specified by:
        `setBounds` in interface `AccessibleComponent`
      Parameters:
        `r` - rectangle indicating this component's bounds
      See Also:
        `AccessibleComponent.getBounds()`

    - #### getSize

          public Dimension getSize()

      Description copied from interface: `AccessibleComponent`
      Returns the size of this object in the form of a Dimension object. The height field of the Dimension object contains this object's height, and the width field of the Dimension object contains this object's width.
      Specified by:
        `getSize` in interface `AccessibleComponent`
      Returns:
        A Dimension object that indicates the size of this component; null if this object is not on the screen
      See Also:
        `AccessibleComponent.setSize(java.awt.Dimension)`

    - #### setSize

          public void setSize(Dimension d)

      Description copied from interface: `AccessibleComponent`
      Resizes this object so that it has width and height.
      Specified by:
        `setSize` in interface `AccessibleComponent`
      Parameters:
        `d` - The dimension specifying the new size of the object.
      See Also:
        `AccessibleComponent.getSize()`

    - #### getAccessibleAt

          public Accessible getAccessibleAt(Point p)

      Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`. Otherwise returns `null`.
      Specified by:
        `getAccessibleAt` in interface `AccessibleComponent`
      Parameters:
        `p` - point in local coordinates of this `Accessible`
      Returns:
        the `Accessible`, if it exists, at the specified location; else `null`

    - #### isFocusTraversable

          public boolean isFocusTraversable()

      Description copied from interface: `AccessibleComponent`
      Returns whether this object can accept focus or not. Objects that can accept focus will also have the AccessibleState.FOCUSABLE state set in their AccessibleStateSets.
      Specified by:
        `isFocusTraversable` in interface `AccessibleComponent`
      Returns:
        true if object can accept focus; otherwise false
      See Also:
        `AccessibleContext.getAccessibleStateSet()`, `AccessibleState.FOCUSABLE`, `AccessibleState.FOCUSED`, `AccessibleStateSet`

    - #### requestFocus

          public void requestFocus()

      Description copied from interface: `AccessibleComponent`
      Requests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.
      Specified by:
        `requestFocus` in interface `AccessibleComponent`
      See Also:
        `AccessibleComponent.isFocusTraversable()`

    - #### addFocusListener

          public void addFocusListener(FocusListener l)

      Description copied from interface: `AccessibleComponent`
      Adds the specified focus listener to receive focus events from this component.
      Specified by:
        `addFocusListener` in interface `AccessibleComponent`
      Parameters:
        `l` - the focus listener
      See Also:
        `AccessibleComponent.removeFocusListener(java.awt.event.FocusListener)`

    - #### removeFocusListener

          public void removeFocusListener(FocusListener l)

      Description copied from interface: `AccessibleComponent`
      Removes the specified focus listener so it no longer receives focus events from this component.
      Specified by:
        `removeFocusListener` in interface `AccessibleComponent`
      Parameters:
        `l` - the focus listener
      See Also:
        `AccessibleComponent.addFocusListener(java.awt.event.FocusListener)`

    - #### getAccessibleSelectionCount

          public int getAccessibleSelectionCount()

      Returns the number of items currently selected. If no items are selected, the return value will be 0.
      Specified by:
        `getAccessibleSelectionCount` in interface `AccessibleSelection`
      Returns:
        the number of items currently selected.

    - #### getAccessibleSelection

          public Accessible getAccessibleSelection(int i)

      Returns an Accessible representing the specified selected item in the object. If there isn't a selection, or there are fewer items selected than the integer passed in, the return value will be null.
      Specified by:
        `getAccessibleSelection` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of selected items
      Returns:
        an Accessible containing the selected item
      See Also:
        `AccessibleSelection.getAccessibleSelectionCount()`

    - #### isAccessibleChildSelected

          public boolean isAccessibleChildSelected(int i)

      Returns true if the current child of this object is selected.
      Specified by:
        `isAccessibleChildSelected` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of the child in this Accessible object.
      Returns:
        true if the current child of this object is selected; else false.
      See Also:
        `AccessibleContext.getAccessibleChild(int)`

    - #### addAccessibleSelection

          public void addAccessibleSelection(int i)

      Adds the specified selected item in the object to the object's selection. If the object supports multiple selections, the specified item is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified item is already selected, this method has no effect.
      Specified by:
        `addAccessibleSelection` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of selectable items
      See Also:
        `AccessibleContext.getAccessibleChild(int)`

    - #### removeAccessibleSelection

          public void removeAccessibleSelection(int i)

      Removes the specified selected item in the object from the object's selection. If the specified item isn't currently selected, this method has no effect.
      Specified by:
        `removeAccessibleSelection` in interface `AccessibleSelection`
      Parameters:
        `i` - the zero-based index of selectable items
      See Also:
        `AccessibleContext.getAccessibleChild(int)`

    - #### clearAccessibleSelection

          public void clearAccessibleSelection()

      Clears the selection in the object, so that nothing in the object is selected.
      Specified by:
        `clearAccessibleSelection` in interface `AccessibleSelection`

    - #### selectAllAccessibleSelection

          public void selectAllAccessibleSelection()

      Causes every selected item in the object to be selected if the object supports multiple selections.
      Specified by:
        `selectAllAccessibleSelection` in interface `AccessibleSelection`

    - #### getAccessibleActionCount

          public int getAccessibleActionCount()

      Returns the number of accessible actions available in this tree node. If this node is not a leaf, there is at least one action (toggle expand), in addition to any available on the object behind the TreeCellRenderer.
      Specified by:
        `getAccessibleActionCount` in interface `AccessibleAction`
      Returns:
        the number of Actions in this object

    - #### getAccessibleActionDescription

          public String getAccessibleActionDescription(int i)

      Return a description of the specified action of the tree node. If this node is not a leaf, there is at least one action description (toggle expand), in addition to any available on the object behind the TreeCellRenderer.
      Specified by:
        `getAccessibleActionDescription` in interface `AccessibleAction`
      Parameters:
        `i` - zero-based index of the actions
      Returns:
        a description of the action
      See Also:
        `AccessibleAction.getAccessibleActionCount()`

    - #### doAccessibleAction

          public boolean doAccessibleAction(int i)

      Perform the specified Action on the tree node. If this node is not a leaf, there is at least one action which can be done (toggle expand), in addition to any available on the object behind the TreeCellRenderer.
      Specified by:
        `doAccessibleAction` in interface `AccessibleAction`
      Parameters:
        `i` - zero-based index of actions
      Returns:
        true if the the action was performed; else false.
      See Also:
        `AccessibleAction.getAccessibleActionCount()`

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