javax.accessibility
Interface AccessibleValue
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- All Known Implementing Classes:
- AbstractButton.AccessibleAbstractButton, Button.AccessibleAWTButton, Checkbox.AccessibleAWTCheckbox, CheckboxMenuItem.AccessibleAWTCheckboxMenuItem, JButton.AccessibleJButton, JCheckBox.AccessibleJCheckBox, JCheckBoxMenuItem.AccessibleJCheckBoxMenuItem, JInternalFrame.AccessibleJInternalFrame, JInternalFrame.JDesktopIcon.AccessibleJDesktopIcon, JMenu.AccessibleJMenu, JMenuItem.AccessibleJMenuItem, JProgressBar.AccessibleJProgressBar, JRadioButton.AccessibleJRadioButton, JRadioButtonMenuItem.AccessibleJRadioButtonMenuItem, JScrollBar.AccessibleJScrollBar, JSlider.AccessibleJSlider, JSpinner.AccessibleJSpinner, JSplitPane.AccessibleJSplitPane, JToggleButton.AccessibleJToggleButton, Menu.AccessibleAWTMenu, MenuItem.AccessibleAWTMenuItem, PopupMenu.AccessibleAWTPopupMenu, Scrollbar.AccessibleAWTScrollBar
public interface AccessibleValueThe AccessibleValue interface should be supported by any object that supports a numerical value (e.g., a scroll bar). This interface provides the standard mechanism for an assistive technology to determine and set the numerical value as well as get the minimum and maximum values. Applications can determine if an object supports the AccessibleValue interface by first obtaining its AccessibleContext (seeAccessible) and then calling theAccessibleContext.getAccessibleValue()method. If the return value is not null, the object supports this interface.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description NumbergetCurrentAccessibleValue()Get the value of this object as a Number.NumbergetMaximumAccessibleValue()Get the maximum value of this object as a Number.NumbergetMinimumAccessibleValue()Get the minimum value of this object as a Number.booleansetCurrentAccessibleValue(Number n)Set the value of this object as a Number.
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Method Detail
getCurrentAccessibleValue
Number getCurrentAccessibleValue()
Get the value of this object as a Number. If the value has not been set, the return value will be null.- Returns:
- value of the object
- See Also:
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setCurrentAccessibleValue(java.lang.Number)
setCurrentAccessibleValue
boolean setCurrentAccessibleValue(Number n)
Set the value of this object as a Number.- Parameters:
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n- the number to use for the value - Returns:
- True if the value was set; else False
- See Also:
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getCurrentAccessibleValue()
getMinimumAccessibleValue
Number getMinimumAccessibleValue()
Get the minimum value of this object as a Number.- Returns:
- Minimum value of the object; null if this object does not have a minimum value
- See Also:
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getMaximumAccessibleValue()
getMaximumAccessibleValue
Number getMaximumAccessibleValue()
Get the maximum value of this object as a Number.- Returns:
- Maximum value of the object; null if this object does not have a maximum value
- See Also:
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getMinimumAccessibleValue()
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