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java.awt
Class Checkbox.AccessibleAWTCheckbox  

java.lang.Object
  javax.accessibility.AccessibleContext
      java.awt.Component.AccessibleAWTComponent
          java.awt.Checkbox.AccessibleAWTCheckbox

All Implemented Interfaces:

javax.accessibility.AccessibleAction, javax.accessibility.AccessibleComponent, javax.accessibility.AccessibleValue, java.util.EventListener, java.awt.event.ItemListener, java.io.Serializable

Enclosing class:

Checkbox

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protected class Checkbox.AccessibleAWTCheckbox

extends Component.AccessibleAWTComponent

implements java.awt.event.ItemListener, javax.accessibility.AccessibleAction, javax.accessibility.AccessibleValue

This class provides accessibility support for the checkbox.

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Nested Class Summary

 

Nested classes inherited from class java.awt.Component.AccessibleAWTComponent

Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler

 

Field Summary
private static long	serialVersionUID           Serialization constant to match JDK 1.5

 

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

DECREMENT, INCREMENT, TOGGLE_EXPAND

 

Constructor Summary

Checkbox.AccessibleAWTCheckbox()           Default constructor which simply calls the super class for generic component accessibility handling.

 

Method Summary
boolean	doAccessibleAction(int i)           Executes the action with the specified id.
javax.accessibility.AccessibleAction	getAccessibleAction()           Returns an implementation of the AccessibleAction interface for this accessible object.
int	getAccessibleActionCount()           Returns the number of actions associated with this accessible object.
java.lang.String	getAccessibleActionDescription(int i)           Returns a description of the action with the supplied id.
javax.accessibility.AccessibleRole	getAccessibleRole()           Returns the role of this accessible object.
javax.accessibility.AccessibleStateSet	getAccessibleStateSet()           Returns the state set of this accessible object.
javax.accessibility.AccessibleValue	getAccessibleValue()           Returns an implementation of the AccessibleValue interface for this accessible object.
java.lang.Number	getCurrentAccessibleValue()           Returns the current value of this accessible object.
java.lang.Number	getMaximumAccessibleValue()           Returns the maximum acceptable accessible value used by this object, or null if no maximum value exists.
java.lang.Number	getMinimumAccessibleValue()           Returns the minimum acceptable accessible value used by this object, or null if no minimum value exists.
void	itemStateChanged(java.awt.event.ItemEvent event)           Captures changes to the state of the checkbox and fires appropriate accessible property change events.
boolean	setCurrentAccessibleValue(java.lang.Number number)           Sets the current value of this accessible object to that supplied.

 

Methods inherited from class java.awt.Component.AccessibleAWTComponent

addFocusListener, addPropertyChangeListener, contains, getAccessibleAt, getAccessibleChild, getAccessibleChildrenCount, getAccessibleComponent, getAccessibleDescription, getAccessibleIndexInParent, getAccessibleName, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, removePropertyChangeListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible

 

Methods inherited from class javax.accessibility.AccessibleContext

firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, setAccessibleDescription, setAccessibleName, setAccessibleParent

 

Methods inherited from class java.lang.Object

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

 

Field Detail

serialVersionUID

private static final long serialVersionUID

Serialization constant to match JDK 1.5

See Also:

Constant Field Values

Constructor Detail

Checkbox.AccessibleAWTCheckbox

public Checkbox.AccessibleAWTCheckbox()

Default constructor which simply calls the super class for generic component accessibility handling.

Method Detail

itemStateChanged

public void itemStateChanged(java.awt.event.ItemEvent event)

Captures changes to the state of the checkbox and fires appropriate accessible property change events.

Specified by:

itemStateChanged in interface java.awt.event.ItemListener

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getAccessibleAction

public javax.accessibility.AccessibleAction getAccessibleAction()

Returns an implementation of the AccessibleAction interface for this accessible object. In this case, the current instance is simply returned (with a more appropriate type), as it also implements the accessible action as well as the context.

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getAccessibleValue

public javax.accessibility.AccessibleValue getAccessibleValue()

Returns an implementation of the AccessibleValue interface for this accessible object. In this case, the current instance is simply returned (with a more appropriate type), as it also implements the accessible value as well as the context.

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getAccessibleActionCount

public int getAccessibleActionCount()

Returns the number of actions associated with this accessible object. This default implementation returns 0.

Specified by:

getAccessibleActionCount in interface javax.accessibility.AccessibleAction

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getAccessibleActionDescription

public java.lang.String getAccessibleActionDescription(int i)

Returns a description of the action with the supplied id. This default implementation always returns null.

Specified by:

getAccessibleActionDescription in interface javax.accessibility.AccessibleAction

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doAccessibleAction

public boolean doAccessibleAction(int i)

Executes the action with the specified id. This default implementation simply returns false.

Specified by:

doAccessibleAction in interface javax.accessibility.AccessibleAction

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getCurrentAccessibleValue

public java.lang.Number getCurrentAccessibleValue()

Returns the current value of this accessible object. If no value has been set, null is returned. This default implementation always returns null, regardless.

Specified by:

getCurrentAccessibleValue in interface javax.accessibility.AccessibleValue

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setCurrentAccessibleValue

public boolean setCurrentAccessibleValue(java.lang.Number number)

Sets the current value of this accessible object to that supplied. In this default implementation, the value is never set and the method always returns false.

Specified by:

setCurrentAccessibleValue in interface javax.accessibility.AccessibleValue

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getMinimumAccessibleValue

public java.lang.Number getMinimumAccessibleValue()

Returns the minimum acceptable accessible value used by this object, or null if no minimum value exists. This default implementation always returns null.

Specified by:

getMinimumAccessibleValue in interface javax.accessibility.AccessibleValue

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getMaximumAccessibleValue

public java.lang.Number getMaximumAccessibleValue()

Returns the maximum acceptable accessible value used by this object, or null if no maximum value exists. This default implementation always returns null.

Specified by:

getMaximumAccessibleValue in interface javax.accessibility.AccessibleValue

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getAccessibleRole

public javax.accessibility.AccessibleRole getAccessibleRole()

Returns the role of this accessible object.

Overrides:

getAccessibleRole in class Component.AccessibleAWTComponent

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getAccessibleStateSet

public javax.accessibility.AccessibleStateSet getAccessibleStateSet()

Returns the state set of this accessible object.

Overrides:

getAccessibleStateSet in class Component.AccessibleAWTComponent

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