/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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package javax.accessibility;
/**
* 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
* {@link Accessible}) and then calling the
* {@link AccessibleContext#getAccessibleValue} method.
* If the return value is not null, the object supports this interface.
*
* @see Accessible
* @see Accessible#getAccessibleContext
* @see AccessibleContext
* @see AccessibleContext#getAccessibleValue
*
* @author Peter Korn
* @author Hans Muller
* @author Willie Walker
*/
public interface
AccessibleValue {
/**
* Get the value of this object as a Number. If the value has not been
* set, the return value will be null.
*
* @return value of the object
* @see #setCurrentAccessibleValue
*/
public
Number getCurrentAccessibleValue();
/**
* Set the value of this object as a Number.
*
* @param n the number to use for the value
* @return True if the value was set; else False
* @see #getCurrentAccessibleValue
*/
public boolean
setCurrentAccessibleValue(
Number n);
// /**
// * Get the description of the value of this object.
// *
// * @return description of the value of the object
// */
// public String getAccessibleValueDescription();
/**
* Get the minimum value of this object as a Number.
*
* @return Minimum value of the object; null if this object does not
* have a minimum value
* @see #getMaximumAccessibleValue
*/
public
Number getMinimumAccessibleValue();
/**
* Get the maximum value of this object as a Number.
*
* @return Maximum value of the object; null if this object does not
* have a maximum value
* @see #getMinimumAccessibleValue
*/
public
Number getMaximumAccessibleValue();
}