# Class Scrollbar.AccessibleAWTScrollBar

java.lang.Object
javax.accessibility.AccessibleContext
java.awt.Component.AccessibleAWTComponent
java.awt.Scrollbar.AccessibleAWTScrollBar

All Implemented Interfaces:
  `Serializable, AccessibleComponent, AccessibleValue`

Enclosing class:
  `Scrollbar`

protected class Scrollbar.AccessibleAWTScrollBar extends Component.AccessibleAWTComponent implements AccessibleValue
This class implements accessibility support for the `Scrollbar` class. It provides an implementation of the Java Accessibility API appropriate to scrollbar user-interface elements.

Since:
  1.3
See Also:
  - Serialized Form

- ## Nested Class Summary

  ### Nested classes/interfaces declared in class Component.AccessibleAWTComponent

  `Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`
  Modifier and Type
  Class
  Description
  `protected class`
  `Component.AccessibleAWTComponent.AccessibleAWTComponentHandler`
  Fire PropertyChange listener, if one is registered, when shown/hidden..
  `protected class`
  `Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`
  Fire PropertyChange listener, if one is registered, when focus events happen

- ## Field Summary

  ### Fields declared in class Component.AccessibleAWTComponent

  `accessibleAWTComponentHandler, accessibleAWTFocusHandler`
  Modifier and Type
  Field
  Description
  `protected ComponentListener`
  `accessibleAWTComponentHandler`
  A component listener to track show/hide/resize events and convert them to PropertyChange events.
  `protected FocusListener`
  `accessibleAWTFocusHandler`
  A listener to track focus events and convert them to PropertyChange events.

  ### Fields declared in class 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`
  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 `AccessibleContext.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 `AccessibleContext.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`
  `AccessibleAWTScrollBar()`
  Constructs an `AccessibleAWTScrollBar`.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `AccessibleRole`
  `getAccessibleRole()`
  Get the role of this object.
  `AccessibleStateSet`
  `getAccessibleStateSet()`
  Get the state set of this object.
  `AccessibleValue`
  `getAccessibleValue()`
  Get the `AccessibleValue` associated with this object.
  `Number`
  `getCurrentAccessibleValue()`
  Get the accessible value of this object.
  `Number`
  `getMaximumAccessibleValue()`
  Get the maximum accessible value of this object.
  `Number`
  `getMinimumAccessibleValue()`
  Get the minimum accessible value of this object.
  `boolean`
  `setCurrentAccessibleValue(Number n)`
  Set the value of this object as a Number.

  ### Methods declared in class 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`
  Modifier and Type
  Method
  Description
  `void`
  `addFocusListener(FocusListener l)`
  Adds the specified focus listener to receive focus events from this component.
  `void`
  `addPropertyChangeListener(PropertyChangeListener listener)`
  Adds a `PropertyChangeListener` to the listener list.
  `boolean`
  `contains(Point p)`
  Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
  `Accessible`
  `getAccessibleAt(Point p)`
  Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
  `Accessible`
  `getAccessibleChild(int i)`
  Returns the nth `Accessible` child of the object.
  `int`
  `getAccessibleChildrenCount()`
  Returns the number of accessible children in the object.
  `AccessibleComponent`
  `getAccessibleComponent()`
  Gets the `AccessibleComponent` associated with this object if one exists.
  `String`
  `getAccessibleDescription()`
  Gets the accessible description of this object.
  `int`
  `getAccessibleIndexInParent()`
  Gets the index of this object in its accessible parent.
  `String`
  `getAccessibleName()`
  Gets the accessible name of this object.
  `Accessible`
  `getAccessibleParent()`
  Gets the `Accessible` parent of this object.
  `Color`
  `getBackground()`
  Gets the background color of this object.
  `Rectangle`
  `getBounds()`
  Gets the bounds of this object in the form of a Rectangle object.
  `Cursor`
  `getCursor()`
  Gets the `Cursor` of this object.
  `Font`
  `getFont()`
  Gets the `Font` of this object.
  `FontMetrics`
  `getFontMetrics(Font f)`
  Gets the `FontMetrics` of this object.
  `Color`
  `getForeground()`
  Gets the foreground color of this object.
  `Locale`
  `getLocale()`
  Returns the locale of this object.
  `Point`
  `getLocation()`
  Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
  `Point`
  `getLocationOnScreen()`
  Returns the location of the object on the screen.
  `Dimension`
  `getSize()`
  Returns the size of this object in the form of a `Dimension` object.
  `boolean`
  `isEnabled()`
  Determines if the object is enabled.
  `boolean`
  `isFocusTraversable()`
  Returns whether this object can accept focus or not.
  `boolean`
  `isShowing()`
  Determines if the object is showing.
  `boolean`
  `isVisible()`
  Determines if the object is visible.
  `void`
  `removeFocusListener(FocusListener l)`
  Removes the specified focus listener so it no longer receives focus events from this component.
  `void`
  `removePropertyChangeListener(PropertyChangeListener listener)`
  Remove a PropertyChangeListener from the listener list.
  `void`
  `requestFocus()`
  Requests focus for this object.
  `void`
  `setBackground(Color c)`
  Sets the background color of this object.
  `void`
  `setBounds(Rectangle r)`
  Sets the bounds of this object in the form of a `Rectangle` object.
  `void`
  `setCursor(Cursor cursor)`
  Sets the `Cursor` of this object.
  `void`
  `setEnabled(boolean b)`
  Sets the enabled state of the object.
  `void`
  `setFont(Font f)`
  Sets the `Font` of this object.
  `void`
  `setForeground(Color c)`
  Sets the foreground color of this object.
  `void`
  `setLocation(Point p)`
  Sets the location of the object relative to the parent.
  `void`
  `setSize(Dimension d)`
  Resizes this object so that it has width and height.
  `void`
  `setVisible(boolean b)`
  Sets the visible state of the object.

  ### Methods declared in class AccessibleContext

  `firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, setAccessibleDescription, setAccessibleName, setAccessibleParent`
  Modifier and Type
  Method
  Description
  `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.
  `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.
  `AccessibleRelationSet`
  `getAccessibleRelationSet()`
  Gets the `AccessibleRelationSet` associated with an object.
  `AccessibleSelection`
  `getAccessibleSelection()`
  Gets the `AccessibleSelection` associated with this object which allows its `Accessible` children to be selected.
  `AccessibleTable`
  `getAccessibleTable()`
  Gets the `AccessibleTable` associated with an object.
  `AccessibleText`
  `getAccessibleText()`
  Gets the `AccessibleText` associated with this object presenting text on the display.
  `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 Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`
  Modifier and Type
  Method
  Description
  `protected Object`
  `clone()`
  Creates and returns a copy of this object.
  `boolean`
  `equals(Object obj)`
  Indicates whether some other object is "equal to" this one.
  `protected void`
  `finalize()`
  Deprecated, for removal: This API element is subject to removal in a future version.
  Finalization is deprecated and subject to removal in a future release.
  `final Class<?>`
  `getClass()`
  Returns the runtime class of this `Object`.
  `int`
  `hashCode()`
  Returns a hash code value for this object.
  `final void`
  `notify()`
  Wakes up a single thread that is waiting on this object's monitor.
  `final void`
  `notifyAll()`
  Wakes up all threads that are waiting on this object's monitor.
  `String`
  `toString()`
  Returns a string representation of the object.
  `final void`
  `wait()`
  Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
  `final void`
  `wait(long timeoutMillis)`
  Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
  `final void`
  `wait(long timeoutMillis, int nanos)`
  Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

- ## Constructor Details

  - ### AccessibleAWTScrollBar

    protected AccessibleAWTScrollBar()
    Constructs an `AccessibleAWTScrollBar`.

- ## Method Details

  - ### getAccessibleStateSet

    public AccessibleStateSet getAccessibleStateSet()
    Get the state set of this object.
    Overrides:
      `getAccessibleStateSet` in class `Component.AccessibleAWTComponent`
    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 `Component.AccessibleAWTComponent`
    Returns:
      an instance of `AccessibleRole` describing the role of the object
    See Also:
      - `AccessibleRole`

  - ### getAccessibleValue

    public AccessibleValue getAccessibleValue()
    Get the `AccessibleValue` associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the `AccessibleValue` interface on behalf of itself.
    Overrides:
      `getAccessibleValue` in class `AccessibleContext`
    Returns:
      this object
    See Also:
      - `AccessibleValue`

  - ### getCurrentAccessibleValue

    public Number getCurrentAccessibleValue()
    Get the accessible value of this object.
    Specified by:
      `getCurrentAccessibleValue` in interface `AccessibleValue`
    Returns:
      The current value of this object.
    See Also:
      - `AccessibleValue.setCurrentAccessibleValue(Number)`

  - ### setCurrentAccessibleValue

    public boolean setCurrentAccessibleValue(Number n)
    Set the value of this object as a Number.
    Specified by:
      `setCurrentAccessibleValue` in interface `AccessibleValue`
    Parameters:
      `n` - the number to use for the value
    Returns:
      True if the value was set.
    See Also:
      - `AccessibleValue.getCurrentAccessibleValue()`

  - ### getMinimumAccessibleValue

    public Number getMinimumAccessibleValue()
    Get the minimum accessible value of this object.
    Specified by:
      `getMinimumAccessibleValue` in interface `AccessibleValue`
    Returns:
      The minimum value of this object.
    See Also:
      - `AccessibleValue.getMaximumAccessibleValue()`

  - ### getMaximumAccessibleValue

    public Number getMaximumAccessibleValue()
    Get the maximum accessible value of this object.
    Specified by:
      `getMaximumAccessibleValue` in interface `AccessibleValue`
    Returns:
      The maximum value of this object.
    See Also:
      - `AccessibleValue.getMinimumAccessibleValue()`