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 | Java™ Platform Standard Ed. 6 | |||||||||
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java.lang.Objectjavax.accessibility.AccessibleContext
public abstract class AccessibleContext
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 | |
|---|---|
| static String | ACCESSIBLE_ACTION_PROPERTYConstant used to indicate that the supported set of actions has changed. | 
| static String | ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTYConstant used to determine when the active descendant of a component has changed. | 
| static String | ACCESSIBLE_CARET_PROPERTYConstant used to determine when the accessibleText caret has changed. | 
| static String | ACCESSIBLE_CHILD_PROPERTYConstant used to determine when Accessible children are added/removed from the object. | 
| static String | ACCESSIBLE_COMPONENT_BOUNDS_CHANGEDPropertyChangeEvent which indicates that a change has occurred in a component's bounds. | 
| static String | ACCESSIBLE_DESCRIPTION_PROPERTYConstant used to determine when the accessibleDescription property has changed. | 
| static String | ACCESSIBLE_HYPERTEXT_OFFSETConstant used to indicate that a hypertext element has received focus. | 
| static String | ACCESSIBLE_INVALIDATE_CHILDRENPropertyChangeEvent which indicates that a significant change has occurred to the children of a component like a tree or text. | 
| static String | ACCESSIBLE_NAME_PROPERTYConstant used to determine when the accessibleName property has changed. | 
| static String | ACCESSIBLE_SELECTION_PROPERTYConstant used to determine when the accessibleSelection has changed. | 
| static String | ACCESSIBLE_STATE_PROPERTYConstant used to determine when the accessibleStateSet property has changed. | 
| static String | ACCESSIBLE_TABLE_CAPTION_CHANGEDConstant 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. | 
| static String | ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGEDConstant 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. | 
| static String | ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGEDConstant 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. | 
| static String | ACCESSIBLE_TABLE_MODEL_CHANGEDConstant used to indicate that table data has changed. | 
| static String | ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGEDConstant 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. | 
| static String | ACCESSIBLE_TABLE_ROW_HEADER_CHANGEDConstant 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. | 
| static String | ACCESSIBLE_TABLE_SUMMARY_CHANGEDConstant 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. | 
| static String | ACCESSIBLE_TEXT_ATTRIBUTES_CHANGEDPropertyChangeEvent which indicates that text attributes have changed. | 
| static String | ACCESSIBLE_TEXT_PROPERTYPropertyChangeEvent which indicates that text has changed. | 
| static String | ACCESSIBLE_VALUE_PROPERTYConstant used to determine when the accessibleValue property has changed. | 
| static String | ACCESSIBLE_VISIBLE_DATA_PROPERTYConstant used to determine when the visual appearance of the object has changed. | 
| protected  String | accessibleDescriptionA localized String containing the description of the object. | 
| protected  String | accessibleNameA localized String containing the name of the object. | 
| protected  Accessible | accessibleParentThe accessible parent of this object. | 
| Constructor Summary | |
|---|---|
| AccessibleContext() | |
| Method Summary | |
|---|---|
|  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 inherited from class java.lang.Object | 
|---|
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Field Detail | 
|---|
public static final String ACCESSIBLE_NAME_PROPERTY
getAccessibleName(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_DESCRIPTION_PROPERTY
getAccessibleDescription(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_STATE_PROPERTY
getAccessibleStateSet(), 
AccessibleState, 
AccessibleStateSet, 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_VALUE_PROPERTY
getAccessibleValue(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_SELECTION_PROPERTY
getAccessibleSelection(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_CARET_PROPERTY
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_VISIBLE_DATA_PROPERTY
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_CHILD_PROPERTY
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_CAPTION_CHANGED
Accessible, 
AccessibleTable, 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_SUMMARY_CHANGED
Accessible, 
AccessibleTable, 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_MODEL_CHANGED
AccessibleTable, 
AccessibleTableModelChange, 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_ROW_HEADER_CHANGED
AccessibleTable, 
AccessibleTableModelChange, 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED
AccessibleTable, 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED
AccessibleTable, 
AccessibleTableModelChange, 
Constant Field Valuespublic static final String ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED
AccessibleTable, 
Constant Field Valuespublic static final String ACCESSIBLE_ACTION_PROPERTY
AccessibleAction, 
Constant Field Valuespublic static final String ACCESSIBLE_HYPERTEXT_OFFSET
AccessibleHyperlink, 
Constant Field Valuespublic static final String ACCESSIBLE_TEXT_PROPERTY
getAccessibleText(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
#AccessibleText.AccessibleTextSequence, 
Constant Field Valuespublic static final String ACCESSIBLE_INVALIDATE_CHILDREN
getAccessibleText(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
#AccessibleText.AccessibleTextSequence, 
Constant Field Valuespublic static final String ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED
getAccessibleText(), 
addPropertyChangeListener(java.beans.PropertyChangeListener), 
#AccessibleText.AccessibleAttributeSequence, 
Constant Field Valuespublic static final String ACCESSIBLE_COMPONENT_BOUNDS_CHANGED
addPropertyChangeListener(java.beans.PropertyChangeListener), 
Constant Field Valuesprotected Accessible accessibleParent
getAccessibleParent(), 
setAccessibleParent(javax.accessibility.Accessible)protected String accessibleName
getAccessibleName(), 
setAccessibleName(java.lang.String)protected String accessibleDescription
getAccessibleDescription(), 
setAccessibleDescription(java.lang.String)| Constructor Detail | 
|---|
public AccessibleContext()
| Method Detail | 
|---|
public String getAccessibleName()
setAccessibleName(java.lang.String)public void setAccessibleName(String s)
s - the new localized name of the object.getAccessibleName(), 
addPropertyChangeListener(java.beans.PropertyChangeListener)public String getAccessibleDescription()
setAccessibleDescription(java.lang.String)public void setAccessibleDescription(String s)
s - the new localized description of the objectsetAccessibleName(java.lang.String), 
addPropertyChangeListener(java.beans.PropertyChangeListener)public abstract AccessibleRole getAccessibleRole()
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.
AccessibleRolepublic abstract AccessibleStateSet getAccessibleStateSet()
AccessibleStateSet, 
AccessibleState, 
addPropertyChangeListener(java.beans.PropertyChangeListener)public Accessible getAccessibleParent()
public void setAccessibleParent(Accessible a)
a - - Accessible to be set as the parentpublic abstract int getAccessibleIndexInParent()
getAccessibleParent(), 
getAccessibleChildrenCount(), 
getAccessibleChild(int)public abstract int getAccessibleChildrenCount()
public abstract Accessible getAccessibleChild(int i)
i - zero-based index of child
getAccessibleChildrenCount()
public abstract Locale getLocale()
                          throws IllegalComponentStateException
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.public void addPropertyChangeListener(PropertyChangeListener listener)
listener - The PropertyChangeListener to be addedACCESSIBLE_NAME_PROPERTY, 
ACCESSIBLE_DESCRIPTION_PROPERTY, 
ACCESSIBLE_STATE_PROPERTY, 
ACCESSIBLE_VALUE_PROPERTY, 
ACCESSIBLE_SELECTION_PROPERTY, 
ACCESSIBLE_TEXT_PROPERTY, 
ACCESSIBLE_VISIBLE_DATA_PROPERTYpublic void removePropertyChangeListener(PropertyChangeListener listener)
listener - The PropertyChangeListener to be removedpublic AccessibleAction getAccessibleAction()
AccessibleActionpublic AccessibleComponent getAccessibleComponent()
AccessibleComponentpublic AccessibleSelection getAccessibleSelection()
AccessibleSelectionpublic AccessibleText getAccessibleText()
AccessibleTextpublic AccessibleEditableText getAccessibleEditableText()
AccessibleEditableTextpublic AccessibleValue getAccessibleValue()
AccessibleValuepublic AccessibleIcon[] getAccessibleIcon()
AccessibleIconpublic AccessibleRelationSet getAccessibleRelationSet()
AccessibleRelationSetpublic AccessibleTable getAccessibleTable()
AccessibleTable
public void firePropertyChange(String propertyName,
                               Object oldValue,
                               Object newValue)
propertyName - The programmatic name of the property that
 was changed.oldValue - The old value of the property.newValue - The new value of the property.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| 
 | Java™ Platform Standard Ed. 6 | |||||||||
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