JList.AccessibleJList (Java 2 Platform SE v1.4.1_"07")

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JavaTM 2 Platform
Std. Ed. v1.4.1_"07"

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## 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:
  AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection, EventListener, ListDataListener, ListSelectionListener, PropertyChangeListener, Serializable

Enclosing class:
  JList

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 JavaBeansTM has been added to the `java.beans` package. Please see `XMLEncoder`.

Nested Class Summary
`protected class` | `JList.AccessibleJList.AccessibleJListChild` This class implements accessibility support appropriate for list children.

Nested classes inherited from class javax.swing.JComponent.AccessibleJComponent
`JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler`

Nested classes inherited from class java.awt.Container.AccessibleAWTContainer
`Container.AccessibleAWTContainer.AccessibleContainerHandler`

Nested classes inherited from class java.awt.Component.AccessibleAWTComponent
`Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`

Field Summary

Fields inherited from class javax.swing.JComponent.AccessibleJComponent
`accessibleContainerHandler, accessibleFocusHandler`

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_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, 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_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent`

Constructor Summary
`JList.AccessibleJList()`

Method Summary
`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

### JList.AccessibleJList

    public JList.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 relative to the coordinate system of this object.
  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

### 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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JavaTM 2 Platform
Std. Ed. v1.4.1_"07"

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.