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

All Implemented Interfaces:

Serializable, AccessibleAction, AccessibleComponent, AccessibleExtendedComponent, AccessibleSelection

Enclosing class:

JComboBox<E>
```
protected class JComboBox.AccessibleJComboBox
extends JComponent.AccessibleJComponent
implements AccessibleAction, AccessibleSelection
```
This class implements accessibility support for the JComboBox class. It provides an implementation of the Java Accessibility API appropriate to Combo Box 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^TM has been added to the java.beans package. Please see XMLEncoder.

Nested Class Summary
- 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
- Fields inherited from interface javax.accessibility.AccessibleAction CLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP

Constructor Summary
Constructors
Constructor and Description

JComboBox.AccessibleJComboBox()
Returns an AccessibleJComboBox instance

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Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAccessibleSelection(int i)` Adds the specified Accessible child of the object to the object's selection.
`void`	`clearAccessibleSelection()` Clears the selection in the object, so that no children in the object are selected.
`boolean`	`doAccessibleAction(int i)` Perform the specified Action on the object
`AccessibleAction`	`getAccessibleAction()` Get the AccessibleAction associated with this object.
`int`	`getAccessibleActionCount()` Returns the number of Actions available in this object.
`String`	`getAccessibleActionDescription(int i)` Return a description of the specified action of the object.
`Accessible`	`getAccessibleChild(int i)` Returns 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 child in the popup.
`int`	`getAccessibleSelectionCount()` Returns the number of Accessible children currently selected.
`AccessibleStateSet`	`getAccessibleStateSet()` Gets the state set of this object.
`boolean`	`isAccessibleChildSelected(int i)` Determines if the current child of this object is selected.
`void`	`removeAccessibleSelection(int i)` Removes the specified child of the object from the object's selection.
`void`	`selectAllAccessibleSelection()` Causes every child of the object to be selected if the object supports multiple selections.

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Methods inherited from class javax.swing.JComponent.AccessibleJComponent addPropertyChangeListener, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleName, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener

Methods inherited from class java.awt.Container.AccessibleAWTContainer getAccessibleAt

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, 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, getAccessibleAt, 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
  - JComboBox.AccessibleJComboBox
    public JComboBox.AccessibleJComboBox()
    
    Returns an AccessibleJComboBox instance
    
    Since:
    
    1.4
- Method Detail
  - 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)
    
    Returns the nth Accessible child of the object. The child at index zero represents the popup. If the combo box is editable, the child at index one represents the editor.
    
    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()
  - 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
  - getAccessibleStateSet
    public AccessibleStateSet getAccessibleStateSet()
    
    Gets the state set of this object. The AccessibleStateSet of an object is composed of a set of unique AccessibleStates. A change in the AccessibleStateSet of an object will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_STATE_PROPERTY property.
    
    Overrides:
    
    getAccessibleStateSet in class JComponent.AccessibleJComponent
    
    Returns:
    an instance of AccessibleStateSet containing the current state set of the object
    See Also:
    AccessibleStateSet, AccessibleState, JComponent.AccessibleJComponent.addPropertyChangeListener(java.beans.PropertyChangeListener)
  - 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
  - getAccessibleActionDescription
    public String getAccessibleActionDescription(int i)
    
    Return a description of the specified action of the object.
    
    Specified by:
    
    getAccessibleActionDescription in interface AccessibleAction
    
    Parameters:
    i - zero-based index of the actions
    
    Returns:
    a String description of the action
    See Also:
    AccessibleAction.getAccessibleActionCount()
  - getAccessibleActionCount
    public int getAccessibleActionCount()
    
    Returns the number of Actions available in this object. The default behavior of a combo box is to have one action.
    
    Specified by:
    
    getAccessibleActionCount in interface AccessibleAction
    
    Returns:
    1, the number of Actions in this object
  - doAccessibleAction
    public boolean doAccessibleAction(int i)
    
    Perform the specified Action on the object
    
    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()
  - 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 Accessible children currently selected. If no children are selected, the return value will be 0.
    
    Specified by:
    
    getAccessibleSelectionCount in interface AccessibleSelection
    
    Returns:
    the number of items currently selected.
    Since:
    
    1.3
  - getAccessibleSelection
    public Accessible getAccessibleSelection(int i)
    
    Returns an Accessible representing the specified selected child in the popup. If there isn't a selection, or there are fewer children selected than the integer passed in, the return value will be null.
    Note that the index represents the i-th selected child, which is different from the i-th child.
    
    Specified by:
    
    getAccessibleSelection in interface AccessibleSelection
    
    Parameters:
    i - the zero-based index of selected children
    
    Returns:
    the i-th selected child
    Since:
    
    1.3
    
    See Also:
    getAccessibleSelectionCount()
  - isAccessibleChildSelected
    public boolean isAccessibleChildSelected(int i)
    
    Determines 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
    Since:
    
    1.3
    
    See Also:
    AccessibleContext.getAccessibleChild(int)
  - addAccessibleSelection
    public void addAccessibleSelection(int i)
    
    Adds the specified Accessible child of the object to the object's selection. If the object supports multiple selections, the specified child is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified child is already selected, this method has no effect.
    
    Specified by:
    
    addAccessibleSelection in interface AccessibleSelection
    
    Parameters:
    i - the zero-based index of the child
    Since:
    
    1.3
    
    See Also:
    AccessibleContext.getAccessibleChild(int)
  - removeAccessibleSelection
    public void removeAccessibleSelection(int i)
    
    Removes the specified child of 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 the child
    Since:
    
    1.3
    
    See Also:
    AccessibleContext.getAccessibleChild(int)
  - clearAccessibleSelection
    public void clearAccessibleSelection()
    
    Clears the selection in the object, so that no children in the object are selected.
    
    Specified by:
    
    clearAccessibleSelection in interface AccessibleSelection
    
    Since:
    
    1.3
  - selectAllAccessibleSelection
    public void selectAllAccessibleSelection()
    
    Causes every child of the object to be selected if the object supports multiple selections.
    
    Specified by:
    
    selectAllAccessibleSelection in interface AccessibleSelection
    
    Since:
    
    1.3

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Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/swing/jcombobox.accessiblejcombobox.html

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Class JComboBox.AccessibleJComboBox

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