Module java.desktop
Package javax.accessibility

# Class AccessibleContext

java.lang.Object
javax.accessibility.AccessibleContext

Direct Known Subclasses:
  `Component.AccessibleAWTComponent`, `ImageIcon.AccessibleImageIcon`, `JList.AccessibleJList.AccessibleJListChild`, `JTable.AccessibleJTable.AccessibleJTableCell`, `JTableHeader.AccessibleJTableHeader.AccessibleJTableHeaderEntry`, `JTree.AccessibleJTree.AccessibleJTreeNode`, `MenuComponent.AccessibleAWTMenuComponent`, `ProgressMonitor.AccessibleProgressMonitor`, `Translator`

@JavaBean(description="Minimal information that all accessible objects return") public abstract class AccessibleContext extends Object
`AccessibleContext` represents the minimum information all accessible objects return. This information includes the accessible name, description, role, and state of the object, as well as information about its parent and children. `AccessibleContext` also contains methods for obtaining more specific accessibility information about a component. If the component supports them, these methods will return an object that implements one or more of the following interfaces:

- `AccessibleAction` - the object can perform one or more actions. This interface provides the standard mechanism for an assistive technology to determine what those actions are and tell the object to perform them. Any object that can be manipulated should support this interface.
- `AccessibleComponent` - the object has a graphical representation. This interface provides the standard mechanism for an assistive technology to determine and set the graphical representation of the object. Any object that is rendered on the screen should support this interface.
- `AccessibleSelection` - the object allows its children to be selected. This interface provides the standard mechanism for an assistive technology to determine the currently selected children of the object as well as modify its selection set. Any object that has children that can be selected should support this interface.
- `AccessibleText` - the object presents editable textual information on the display. This interface provides the standard mechanism for an assistive technology to access that text via its content, attributes, and spatial location. Any object that contains editable text should support this interface.
- `AccessibleValue` - the object supports a numerical value. This interface provides the standard mechanism for an assistive technology to determine and set the current value of the object, as well as obtain its minimum and maximum values. Any object that supports a numerical value should support this interface.

## Field Summary

Fields
Modifier and Type
Field
Description
`static final String`
`ACCESSIBLE_ACTION_PROPERTY`
Constant used to indicate that the supported set of actions has changed.
`static final String`
`ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY`
Constant used to determine when the active descendant of a component has changed.
`static final String`
`ACCESSIBLE_CARET_PROPERTY`
Constant used to determine when the `accessibleText` caret has changed.
`static final String`
`ACCESSIBLE_CHILD_PROPERTY`
Constant used to determine when `Accessible` children are added/removed from the object.
`static final String`
`ACCESSIBLE_COMPONENT_BOUNDS_CHANGED`
`PropertyChangeEvent` which indicates that a change has occurred in a component's bounds.
`static final String`
`ACCESSIBLE_DESCRIPTION_PROPERTY`
Constant used to determine when the `accessibleDescription` property has changed.
`static final String`
`ACCESSIBLE_HYPERTEXT_OFFSET`
Constant used to indicate that a hypertext element has received focus.
`static final String`
`ACCESSIBLE_INVALIDATE_CHILDREN`
`PropertyChangeEvent` which indicates that a significant change has occurred to the children of a component like a tree or text.
`static final String`
`ACCESSIBLE_NAME_PROPERTY`
Constant used to determine when the `accessibleName` property has changed.
`static final String`
`ACCESSIBLE_SELECTION_PROPERTY`
Constant used to determine when the `accessibleSelection` has changed.
`static final String`
`ACCESSIBLE_STATE_PROPERTY`
Constant used to determine when the `accessibleStateSet` property has changed.
`static final String`
`ACCESSIBLE_TABLE_CAPTION_CHANGED`
Constant used to indicate that the table caption has changed.
`static final String`
`ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED`
Constant used to indicate that the column description has changed.
`static final String`
`ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED`
Constant used to indicate that the column header has changed.
`static final String`
`ACCESSIBLE_TABLE_MODEL_CHANGED`
Constant used to indicate that table data has changed.
`static final String`
`ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED`
Constant used to indicate that the row description has changed.
`static final String`
`ACCESSIBLE_TABLE_ROW_HEADER_CHANGED`
Constant used to indicate that the row header has changed.
`static final String`
`ACCESSIBLE_TABLE_SUMMARY_CHANGED`
Constant used to indicate that the table summary has changed.
`static final String`
`ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED`
`PropertyChangeEvent` which indicates that text attributes have changed.
`static final String`
`ACCESSIBLE_TEXT_PROPERTY`
`PropertyChangeEvent` which indicates that text has changed.
`static final String`
`ACCESSIBLE_VALUE_PROPERTY`
Constant used to determine when the `accessibleValue` property has changed.
`static final String`
`ACCESSIBLE_VISIBLE_DATA_PROPERTY`
Constant used to determine when the visual appearance of the object has changed.
`protected String`
`accessibleDescription`
A localized String containing the description of the object.
`protected String`
`accessibleName`
A localized String containing the name of the object.
`protected Accessible`
`accessibleParent`
The accessible parent of this object.

## Constructor Summary

Constructors
Modifier
Constructor
Description
`protected`
`AccessibleContext()`
Constructor for subclasses to call.

## Method Summary

Modifier and Type
Method
Description
`void`
`addPropertyChangeListener(PropertyChangeListener listener)`
Adds a `PropertyChangeListener` to the listener list.
`void`
`firePropertyChange(String propertyName, Object oldValue, Object newValue)`
Support for reporting bound property changes.
`AccessibleAction`
`getAccessibleAction()`
Gets the `AccessibleAction` associated with this object that supports one or more actions.
`abstract Accessible`
`getAccessibleChild(int i)`
Returns the specified `Accessible` child of the object.
`abstract int`
`getAccessibleChildrenCount()`
Returns the number of accessible children of the object.
`AccessibleComponent`
`getAccessibleComponent()`
Gets the `AccessibleComponent` associated with this object that has a graphical representation.
`String`
`getAccessibleDescription()`
Gets the `accessibleDescription` property of this object.
`AccessibleEditableText`
`getAccessibleEditableText()`
Gets the `AccessibleEditableText` associated with this object presenting editable text on the display.
`AccessibleIcon[]`
`getAccessibleIcon()`
Gets the `AccessibleIcons` associated with an object that has one or more associated icons.
`abstract int`
`getAccessibleIndexInParent()`
Gets the 0-based index of this object in its accessible parent.
`String`
`getAccessibleName()`
Gets the `accessibleName` property of this object.
`Accessible`
`getAccessibleParent()`
Gets the `Accessible` parent of this object.
`AccessibleRelationSet`
`getAccessibleRelationSet()`
Gets the `AccessibleRelationSet` associated with an object.
`abstract AccessibleRole`
`getAccessibleRole()`
Gets the role of this object.
`AccessibleSelection`
`getAccessibleSelection()`
Gets the `AccessibleSelection` associated with this object which allows its `Accessible` children to be selected.
`abstract AccessibleStateSet`
`getAccessibleStateSet()`
Gets the state set of this object.
`AccessibleTable`
`getAccessibleTable()`
Gets the `AccessibleTable` associated with an object.
`AccessibleText`
`getAccessibleText()`
Gets the `AccessibleText` associated with this object presenting text on the display.
`AccessibleValue`
`getAccessibleValue()`
Gets the `AccessibleValue` associated with this object that supports a `Numerical` value.
`abstract Locale`
`getLocale()`
Gets the locale of the component.
`void`
`removePropertyChangeListener(PropertyChangeListener listener)`
Removes a `PropertyChangeListener` from the listener list.
`void`
`setAccessibleDescription(String s)`
Sets the accessible description of this object.
`void`
`setAccessibleName(String s)`
Sets the localized accessible name of this object.
`void`
`setAccessibleParent(Accessible a)`
Sets the `Accessible` parent of this object.

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

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

## Field Details

### ACCESSIBLE_NAME_PROPERTY

public static final String ACCESSIBLE_NAME_PROPERTY
Constant used to determine when the `accessibleName` property has changed. The old value in the `PropertyChangeEvent` will be the old `accessibleName` and the new value will be the new `accessibleName`.

See Also:
  - `getAccessibleName()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_DESCRIPTION_PROPERTY

public static final String ACCESSIBLE_DESCRIPTION_PROPERTY
Constant used to determine when the `accessibleDescription` property has changed. The old value in the `PropertyChangeEvent` will be the old `accessibleDescription` and the new value will be the new `accessibleDescription`.

See Also:
  - `getAccessibleDescription()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_STATE_PROPERTY

public static final String ACCESSIBLE_STATE_PROPERTY
Constant used to determine when the `accessibleStateSet` property has changed. The old value will be the old `AccessibleState` and the new value will be the new `AccessibleState` in the `accessibleStateSet`. For example, if a component that supports the vertical and horizontal states changes its orientation from vertical to horizontal, the old value will be `AccessibleState.VERTICAL` and the new value will be `AccessibleState.HORIZONTAL`. Please note that either value can also be `null`. For example, when a component changes from being enabled to disabled, the old value will be `AccessibleState.ENABLED` and the new value will be `null`.

See Also:
  - `getAccessibleStateSet()`
  - `AccessibleState`
  - `AccessibleStateSet`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_VALUE_PROPERTY

public static final String ACCESSIBLE_VALUE_PROPERTY
Constant used to determine when the `accessibleValue` property has changed. The old value in the `PropertyChangeEvent` will be a `Number` representing the old value and the new value will be a `Number` representing the new value.

See Also:
  - `getAccessibleValue()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_SELECTION_PROPERTY

public static final String ACCESSIBLE_SELECTION_PROPERTY
Constant used to determine when the `accessibleSelection` has changed. The old and new values in the `PropertyChangeEvent` are currently reserved for future use.

See Also:
  - `getAccessibleSelection()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_CARET_PROPERTY

public static final String ACCESSIBLE_CARET_PROPERTY
Constant used to determine when the `accessibleText` caret has changed. The old value in the `PropertyChangeEvent` will be an integer representing the old caret position, and the new value will be an integer representing the new/current caret position.

See Also:
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_VISIBLE_DATA_PROPERTY

public static final String ACCESSIBLE_VISIBLE_DATA_PROPERTY
Constant used to determine when the visual appearance of the object has changed. The old and new values in the `PropertyChangeEvent` are currently reserved for future use.

See Also:
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_CHILD_PROPERTY

public static final String ACCESSIBLE_CHILD_PROPERTY
Constant used to determine when `Accessible` children are added/removed from the object. If an `Accessible` child is being added, the old value will be `null` and the new value will be the `Accessible` child. If an `Accessible` child is being removed, the old value will be the `Accessible` child, and the new value will be `null`.

See Also:
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY

public static final String ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY
Constant used to determine when the active descendant of a component has changed. The active descendant is used for objects such as list, tree, and table, which may have transient children. When the active descendant has changed, the old value of the property change event will be the `Accessible` representing the previous active child, and the new value will be the `Accessible` representing the current active child.

See Also:
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### ACCESSIBLE_TABLE_CAPTION_CHANGED

public static final String ACCESSIBLE_TABLE_CAPTION_CHANGED
Constant used to indicate that the table caption has changed. The old value in the `PropertyChangeEvent` will be an `Accessible` representing the previous table caption and the new value will be an `Accessible` representing the new table caption.

See Also:
  - `Accessible`
  - `AccessibleTable`
  - Constant Field Values

### ACCESSIBLE_TABLE_SUMMARY_CHANGED

public static final String ACCESSIBLE_TABLE_SUMMARY_CHANGED
Constant used to indicate that the table summary has changed. The old value in the `PropertyChangeEvent` will be an `Accessible` representing the previous table summary and the new value will be an `Accessible` representing the new table summary.

See Also:
  - `Accessible`
  - `AccessibleTable`
  - Constant Field Values

### ACCESSIBLE_TABLE_MODEL_CHANGED

public static final String ACCESSIBLE_TABLE_MODEL_CHANGED
Constant used to indicate that table data has changed. The old value in the `PropertyChangeEvent` will be `null` and the new value will be an `AccessibleTableModelChange` representing the table change.

See Also:
  - `AccessibleTable`
  - `AccessibleTableModelChange`
  - Constant Field Values

### ACCESSIBLE_TABLE_ROW_HEADER_CHANGED

public static final String ACCESSIBLE_TABLE_ROW_HEADER_CHANGED
Constant used to indicate that the row header has changed. The old value in the `PropertyChangeEvent` will be `null` and the new value will be an `AccessibleTableModelChange` representing the header change.

See Also:
  - `AccessibleTable`
  - `AccessibleTableModelChange`
  - Constant Field Values

### ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED

public static final String ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED
Constant used to indicate that the row description has changed. The old value in the `PropertyChangeEvent` will be `null` and the new value will be an `Integer` representing the row index.

See Also:
  - `AccessibleTable`
  - Constant Field Values

### ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED

public static final String ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED
Constant used to indicate that the column header has changed. The old value in the `PropertyChangeEvent` will be `null` and the new value will be an `AccessibleTableModelChange` representing the header change.

See Also:
  - `AccessibleTable`
  - `AccessibleTableModelChange`
  - Constant Field Values

### ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED

public static final String ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED
Constant used to indicate that the column description has changed. The old value in the `PropertyChangeEvent` will be `null` and the new value will be an `Integer` representing the column index.

See Also:
  - `AccessibleTable`
  - Constant Field Values

### ACCESSIBLE_ACTION_PROPERTY

public static final String ACCESSIBLE_ACTION_PROPERTY
Constant used to indicate that the supported set of actions has changed. The old value in the `PropertyChangeEvent` will be an `Integer` representing the old number of actions supported and the new value will be an `Integer` representing the new number of actions supported.

See Also:
  - `AccessibleAction`
  - Constant Field Values

### ACCESSIBLE_HYPERTEXT_OFFSET

public static final String ACCESSIBLE_HYPERTEXT_OFFSET
Constant used to indicate that a hypertext element has received focus. The old value in the `PropertyChangeEvent` will be an `Integer` representing the start index in the document of the previous element that had focus and the new value will be an `Integer` representing the start index in the document of the current element that has focus. A value of -1 indicates that an element does not or did not have focus.

See Also:
  - `AccessibleHyperlink`
  - Constant Field Values

### ACCESSIBLE_TEXT_PROPERTY

public static final String ACCESSIBLE_TEXT_PROPERTY
`PropertyChangeEvent` which indicates that text has changed.
For text insertion, the `oldValue` is `null` and the `newValue` is an `AccessibleTextSequence` specifying the text that was inserted.
For text deletion, the `oldValue` is an `AccessibleTextSequence` specifying the text that was deleted and the `newValue` is `null`.
For text replacement, the `oldValue` is an `AccessibleTextSequence` specifying the old text and the `newValue` is an `AccessibleTextSequence` specifying the new text.

See Also:
  - `getAccessibleText()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - `AccessibleTextSequence`
  - Constant Field Values

### ACCESSIBLE_INVALIDATE_CHILDREN

public static final String ACCESSIBLE_INVALIDATE_CHILDREN
`PropertyChangeEvent` which indicates that a significant change has occurred to the children of a component like a tree or text. This change notifies the event listener that it needs to reacquire the state of the subcomponents. The `oldValue` is `null` and the `newValue` is the component whose children have become invalid.

Since:
  1.5
See Also:
  - `getAccessibleText()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - `AccessibleTextSequence`
  - Constant Field Values

### ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED

public static final String ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED
`PropertyChangeEvent` which indicates that text attributes have changed.
For attribute insertion, the `oldValue` is `null` and the `newValue` is an `AccessibleAttributeSequence` specifying the attributes that were inserted.
For attribute deletion, the `oldValue` is an `AccessibleAttributeSequence` specifying the attributes that were deleted and the `newValue` is `null`.
For attribute replacement, the `oldValue` is an `AccessibleAttributeSequence` specifying the old attributes and the `newValue` is an `AccessibleAttributeSequence` specifying the new attributes.

Since:
  1.5
See Also:
  - `getAccessibleText()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - `AccessibleAttributeSequence`
  - Constant Field Values

### ACCESSIBLE_COMPONENT_BOUNDS_CHANGED

public static final String ACCESSIBLE_COMPONENT_BOUNDS_CHANGED
`PropertyChangeEvent` which indicates that a change has occurred in a component's bounds. The `oldValue` is the old component bounds and the `newValue` is the new component bounds.

Since:
  1.5
See Also:
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - Constant Field Values

### accessibleParent

protected Accessible accessibleParent
The accessible parent of this object.

See Also:
  - `getAccessibleParent()`
  - `setAccessibleParent(javax.accessibility.Accessible)`

### accessibleName

protected String accessibleName
A localized String containing the name of the object.

See Also:
  - `getAccessibleName()`
  - `setAccessibleName(java.lang.String)`

### accessibleDescription

protected String accessibleDescription
A localized String containing the description of the object.

See Also:
  - `getAccessibleDescription()`
  - `setAccessibleDescription(java.lang.String)`

## Constructor Details

### AccessibleContext

protected AccessibleContext()
Constructor for subclasses to call.

## Method Details

### getAccessibleName

public String getAccessibleName()
Gets the `accessibleName` property of this object. The `accessibleName` property of an object is a localized `String` that designates the purpose of the object. For example, the `accessibleName` property of a label or button might be the text of the label or button itself. In the case of an object that doesn't display its name, the `accessibleName` should still be set. For example, in the case of a text field used to enter the name of a city, the `accessibleName` for the `en_US` locale could be 'city.'

Returns:
  the localized name of the object; `null` if this object does not have a name
See Also:
  - `setAccessibleName(java.lang.String)`

### setAccessibleName

@BeanProperty(preferred=true, description="Sets the accessible name for the component.") public void setAccessibleName(String s)
Sets the localized accessible name of this object. Changing the name will cause a `PropertyChangeEvent` to be fired for the `ACCESSIBLE_NAME_PROPERTY` property.

Parameters:
  `s` - the new localized name of the object
See Also:
  - `getAccessibleName()`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`

### getAccessibleDescription

public String getAccessibleDescription()
Gets the `accessibleDescription` property of this object. The `accessibleDescription` property of this object is a short localized phrase describing the purpose of the object. For example, in the case of a 'Cancel' button, the `accessibleDescription` could be 'Ignore changes and close dialog box.'

Returns:
  the localized description of the object; `null` if this object does not have a description
See Also:
  - `setAccessibleDescription(java.lang.String)`

### setAccessibleDescription

@BeanProperty(preferred=true, description="Sets the accessible description for the component.") public void setAccessibleDescription(String s)
Sets the accessible description of this object. Changing the name will cause a `PropertyChangeEvent` to be fired for the `ACCESSIBLE_DESCRIPTION_PROPERTY` property.

Parameters:
  `s` - the new localized description of the object
See Also:
  - `setAccessibleName(java.lang.String)`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`

### getAccessibleRole

public abstract AccessibleRole getAccessibleRole()
Gets the role of this object. The role of the object is the generic purpose or use of the class of this object. For example, the role of a push button is `AccessibleRole.PUSH_BUTTON`. The roles in `AccessibleRole` are provided so component developers can pick from a set of predefined roles. This enables assistive technologies to provide a consistent interface to various tweaked subclasses of components (e.g., use `AccessibleRole.PUSH_BUTTON` for all components that act like a push button) as well as distinguish between subclasses that behave differently (e.g., `AccessibleRole.CHECK_BOX` for check boxes and `AccessibleRole.RADIO_BUTTON` for radio buttons).

Note that the `AccessibleRole` class is also extensible, so custom component developers can define their own `AccessibleRole`'s if the set of predefined roles is inadequate.

Returns:
  an instance of `AccessibleRole` describing the role of the object
See Also:
  - `AccessibleRole`

### getAccessibleStateSet

public abstract 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.

Returns:
  an instance of `AccessibleStateSet` containing the current state set of the object
See Also:
  - `AccessibleStateSet`
  - `AccessibleState`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`

### getAccessibleParent

public Accessible getAccessibleParent()
Gets the `Accessible` parent of this object.

Returns:
  the `Accessible` parent of this object; `null` if this object does not have an `Accessible` parent

### setAccessibleParent

public void setAccessibleParent(Accessible a)
Sets the `Accessible` parent of this object. This is meant to be used only in the situations where the actual component's parent should not be treated as the component's accessible parent and is a method that should only be called by the parent of the accessible child.

Parameters:
  `a` - - `Accessible` to be set as the parent

### getAccessibleIndexInParent

public abstract int getAccessibleIndexInParent()
Gets the 0-based index of this object in its accessible parent.

Returns:
  the 0-based index of this object in its parent; -1 if this object does not have an accessible parent.
See Also:
  - `getAccessibleParent()`
  - `getAccessibleChildrenCount()`
  - `getAccessibleChild(int)`

### getAccessibleChildrenCount

public abstract int getAccessibleChildrenCount()
Returns the number of accessible children of the object.

Returns:
  the number of accessible children of the object.

### getAccessibleChild

public abstract Accessible getAccessibleChild(int i)
Returns the specified `Accessible` child of the object. The `Accessible` children of an `Accessible` object are zero-based, so the first child of an `Accessible` child is at index 0, the second child is at index 1, and so on.

Parameters:
  `i` - zero-based index of child
Returns:
  the `Accessible` child of the object
See Also:
  - `getAccessibleChildrenCount()`

### getLocale

public abstract Locale getLocale() throws IllegalComponentStateException
Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.

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

### addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)
Adds a `PropertyChangeListener` to the listener list. The listener is registered for all `Accessible` properties and will be called when those properties change.

Parameters:
  `listener` - The PropertyChangeListener to be added
See Also:
  - `ACCESSIBLE_NAME_PROPERTY`
  - `ACCESSIBLE_DESCRIPTION_PROPERTY`
  - `ACCESSIBLE_STATE_PROPERTY`
  - `ACCESSIBLE_VALUE_PROPERTY`
  - `ACCESSIBLE_SELECTION_PROPERTY`
  - `ACCESSIBLE_TEXT_PROPERTY`
  - `ACCESSIBLE_VISIBLE_DATA_PROPERTY`

### removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)
Removes a `PropertyChangeListener` from the listener list. This removes a `PropertyChangeListener` that was registered for all properties.

Parameters:
  `listener` - The PropertyChangeListener to be removed

### getAccessibleAction

public AccessibleAction getAccessibleAction()
Gets the `AccessibleAction` associated with this object that supports one or more actions.

Returns:
  `AccessibleAction` if supported by object; else return `null`
See Also:
  - `AccessibleAction`

### getAccessibleComponent

public AccessibleComponent getAccessibleComponent()
Gets the `AccessibleComponent` associated with this object that has a graphical representation.

Returns:
  `AccessibleComponent` if supported by object; else return `null`
See Also:
  - `AccessibleComponent`

### getAccessibleSelection

public AccessibleSelection getAccessibleSelection()
Gets the `AccessibleSelection` associated with this object which allows its `Accessible` children to be selected.

Returns:
  `AccessibleSelection` if supported by object; else return `null`
See Also:
  - `AccessibleSelection`

### getAccessibleText

public AccessibleText getAccessibleText()
Gets the `AccessibleText` associated with this object presenting text on the display.

Returns:
  `AccessibleText` if supported by object; else return `null`
See Also:
  - `AccessibleText`

### getAccessibleEditableText

public AccessibleEditableText getAccessibleEditableText()
Gets the `AccessibleEditableText` associated with this object presenting editable text on the display.

Returns:
  `AccessibleEditableText` if supported by object; else return `null`
Since:
  1.4
See Also:
  - `AccessibleEditableText`

### getAccessibleValue

public AccessibleValue getAccessibleValue()
Gets the `AccessibleValue` associated with this object that supports a `Numerical` value.

Returns:
  `AccessibleValue` if supported by object; else return `null`
See Also:
  - `AccessibleValue`

### getAccessibleIcon

public AccessibleIcon[] getAccessibleIcon()
Gets the `AccessibleIcons` associated with an object that has one or more associated icons.

Returns:
  an array of `AccessibleIcon` if supported by object; otherwise return `null`
Since:
  1.3
See Also:
  - `AccessibleIcon`

### getAccessibleRelationSet

public AccessibleRelationSet getAccessibleRelationSet()
Gets the `AccessibleRelationSet` associated with an object.

Returns:
  an `AccessibleRelationSet` if supported by object; otherwise return `null`
Since:
  1.3
See Also:
  - `AccessibleRelationSet`

### getAccessibleTable

public AccessibleTable getAccessibleTable()
Gets the `AccessibleTable` associated with an object.

Returns:
  an `AccessibleTable` if supported by object; otherwise return `null`
Since:
  1.3
See Also:
  - `AccessibleTable`

### firePropertyChange

public void firePropertyChange(String propertyName, Object oldValue, Object newValue)
Support for reporting bound property changes. If `oldValue` and `newValue` are not equal and the `PropertyChangeEvent` listener list is not empty, then fire a `PropertyChange` event to each listener. In general, this is for use by the `Accessible` objects themselves and should not be called by an application program.

Parameters:
  `propertyName` - The programmatic name of the property that was changed
  `oldValue` - The old value of the property
  `newValue` - The new value of the property
See Also:
  - `PropertyChangeSupport`
  - `addPropertyChangeListener(java.beans.PropertyChangeListener)`
  - `removePropertyChangeListener(java.beans.PropertyChangeListener)`
  - `ACCESSIBLE_NAME_PROPERTY`
  - `ACCESSIBLE_DESCRIPTION_PROPERTY`
  - `ACCESSIBLE_STATE_PROPERTY`
  - `ACCESSIBLE_VALUE_PROPERTY`
  - `ACCESSIBLE_SELECTION_PROPERTY`
  - `ACCESSIBLE_TEXT_PROPERTY`
  - `ACCESSIBLE_VISIBLE_DATA_PROPERTY`