JList.AccessibleJList (Java Platform SE 8 )
Keywords: javax.swing.JList.AccessibleJList class
Date: 2017-01-22

javax.swing

## Class JList.AccessibleJList

- java.lang.Object
- - javax.accessibility.AccessibleContext
  - - java.awt.Component.AccessibleAWTComponent
    - - java.awt.Container.AccessibleAWTContainer
      - - javax.swing.JComponent.AccessibleJComponent
        - - javax.swing.JList.AccessibleJList

- All Implemented Interfaces:
    PropertyChangeListener, Serializable, EventListener, AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection, ListDataListener, ListSelectionListener
  Enclosing class:
    JList<E>

      protected class JList.AccessibleJList
      extends JComponent.AccessibleJComponent
      implements AccessibleSelection, PropertyChangeListener, ListSelectionListener, ListDataListener

  This class implements accessibility support for the `JList` class. It provides an implementation of the Java Accessibility API appropriate to list user-interface elements.

  Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the `java.beans` package. Please see `XMLEncoder`.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `protected class` | `JList.AccessibleJList.AccessibleJListChild` This class implements accessibility support appropriate for list children.

    - ### Nested classes/interfaces inherited from class javax.swing.JComponent.AccessibleJComponent

      `JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler`

    - ### Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent

      `Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`

  - ### Field Summary

    - ### Fields inherited from class javax.swing.JComponent.AccessibleJComponent

      `accessibleFocusHandler`

    - ### Fields inherited from class java.awt.Container.AccessibleAWTContainer

      `accessibleContainerHandler`

    - ### Fields inherited from class java.awt.Component.AccessibleAWTComponent

      `accessibleAWTComponentHandler, accessibleAWTFocusHandler`

    - ### 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, accessibleParent`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AccessibleJList()`

  - ### 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` | `clearAccessibleSelection()` Clears the selection in the object, so that nothing in the object is selected.
    `void` | `contentsChanged(ListDataEvent e)` List Data Listener contents changed method.
    `Accessible` | `getAccessibleAt(Point p)` Returns the `Accessible` child contained at the local coordinate `Point`, if one exists.
    `Accessible` | `getAccessibleChild(int i)` Return the nth Accessible child of the object.
    `int` | `getAccessibleChildrenCount()` Returns the number of accessible children in the object.
    `AccessibleRole` | `getAccessibleRole()` Get the role of this object.
    `AccessibleSelection` | `getAccessibleSelection()` Get the AccessibleSelection associated with this object.
    `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.
    `void` | `intervalAdded(ListDataEvent e)` List Data Listener interval added method.
    `void` | `intervalRemoved(ListDataEvent e)` List Data Listener interval removed method.
    `boolean` | `isAccessibleChildSelected(int i)` Returns true if the current child of this object is selected.
    `void` | `propertyChange(PropertyChangeEvent e)` Property Change Listener change method.
    `void` | `removeAccessibleSelection(int i)` Removes the specified selected item in the object from the object's selection.
    `void` | `selectAllAccessibleSelection()` Causes every selected item in the object to be selected if the object supports multiple selections.
    `void` | `valueChanged(ListSelectionEvent e)` List Selection Listener value change method.

    - ### Methods inherited from class javax.swing.JComponent.AccessibleJComponent

      `addPropertyChangeListener, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleName, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener`

    - ### Methods inherited from class java.awt.Component.AccessibleAWTComponent

      `addFocusListener, contains, getAccessibleComponent, getAccessibleIndexInParent, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible`

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

      `firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent`

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

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

    - ### Methods inherited from interface javax.accessibility.AccessibleComponent

      `addFocusListener, contains, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible`

- - ### Constructor Detail

    - #### AccessibleJList

          public AccessibleJList()

  - ### Method Detail

    - #### propertyChange

          public void propertyChange(PropertyChangeEvent e)

      Property Change Listener change method. Used to track changes to the DataModel and ListSelectionModel, in order to re-set listeners to those for reporting changes there via the Accessibility PropertyChange mechanism.
      Specified by:
        `propertyChange` in interface `PropertyChangeListener`
      Parameters:
        `e` - PropertyChangeEvent

    - #### valueChanged

          public void valueChanged(ListSelectionEvent e)

      List Selection Listener value change method. Used to fire the property change
      Specified by:
        `valueChanged` in interface `ListSelectionListener`
      Parameters:
        `e` - ListSelectionEvent

    - #### intervalAdded

          public void intervalAdded(ListDataEvent e)

      List Data Listener interval added method. Used to fire the visible data property change
      Specified by:
        `intervalAdded` in interface `ListDataListener`
      Parameters:
        `e` - ListDataEvent

    - #### intervalRemoved

          public void intervalRemoved(ListDataEvent e)

      List Data Listener interval removed method. Used to fire the visible data property change
      Specified by:
        `intervalRemoved` in interface `ListDataListener`
      Parameters:
        `e` - ListDataEvent

    - #### contentsChanged

          public void contentsChanged(ListDataEvent e)

      List Data Listener contents changed method. Used to fire the visible data property change
      Specified by:
        `contentsChanged` in interface `ListDataListener`
      Parameters:
        `e` - ListDataEvent

    - #### getAccessibleStateSet

          public AccessibleStateSet getAccessibleStateSet()

      Get the state set of this object.
      Overrides:
        `getAccessibleStateSet` in class `JComponent.AccessibleJComponent`
      Returns:
        an instance of AccessibleState containing the current state of the object
      See Also:
        `AccessibleState`

    - #### getAccessibleRole

          public AccessibleRole getAccessibleRole()

      Get the role of this object.
      Overrides:
        `getAccessibleRole` in class `JComponent.AccessibleJComponent`
      Returns:
        an instance of AccessibleRole describing the role of the object
      See Also:
        `AccessibleRole`

    - #### getAccessibleAt

          public Accessible getAccessibleAt(Point p)

      Returns the `Accessible` child contained at the local coordinate `Point`, if one exists. Otherwise returns `null`.
      Specified by:
        `getAccessibleAt` in interface `AccessibleComponent`
      Overrides:
        `getAccessibleAt` in class `Container.AccessibleAWTContainer`
      Parameters:
        `p` - the point defining the top-left corner of the `Accessible`, given in the coordinate space of the object's parent
      Returns:
        the `Accessible` at the specified location, if it exists

    - #### getAccessibleChildrenCount

          public int getAccessibleChildrenCount()

      Returns the number of accessible children in the object. If all of the children of this object implement Accessible, than this method should return the number of children of this object.
      Overrides:
        `getAccessibleChildrenCount` in class `JComponent.AccessibleJComponent`
      Returns:
        the number of accessible children in the object.

    - #### getAccessibleChild

          public Accessible getAccessibleChild(int i)

      Return the nth Accessible child of the object.
      Overrides:
        `getAccessibleChild` in class `JComponent.AccessibleJComponent`
      Parameters:
        `i` - zero-based index of child
      Returns:
        the nth Accessible child of the object
      See Also:
        `AccessibleContext.getAccessibleChildrenCount()`

    - #### getAccessibleSelection

          public AccessibleSelection getAccessibleSelection()

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

    - #### 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`

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