public interface

AccessibleValue

javax.accessibility.AccessibleValue
Known Indirect Subclasses

Class Overview

The 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 (see Accessible) and then calling the getAccessibleValue() method. If the return value is not null, the object supports this interface.

See Also

Summary

Public Methods
abstract Number getCurrentAccessibleValue()
Get the value of this object as a Number.
abstract Number getMaximumAccessibleValue()
Get the maximum value of this object as a Number.
abstract Number getMinimumAccessibleValue()
Get the minimum value of this object as a Number.
abstract boolean setCurrentAccessibleValue(Number n)
Set the value of this object as a Number.

Public Methods

public abstract 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

public abstract 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

public abstract 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

public abstract boolean setCurrentAccessibleValue (Number n)

Set the value of this object as a Number.

Returns
  • True if the value was set; else False
See Also