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*
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package javax.accessibility;
/**
* This {@code AccessibleSelection} interface provides the standard mechanism
* for an assistive technology to determine what the current selected children
* are, as well as modify the selection set. Any object that has children that
* can be selected should support the {@code AccessibleSelection} interface.
* Applications can determine if an object supports the
* {@code AccessibleSelection} interface by first obtaining its
* {@code AccessibleContext} (see {@link Accessible}) and then calling the
* {@link AccessibleContext#getAccessibleSelection} method. If the return value
* is not {@code null}, the object supports this interface.
*
* @author Peter Korn
* @author Hans Muller
* @author Willie Walker
* @see Accessible
* @see Accessible#getAccessibleContext
* @see AccessibleContext
* @see AccessibleContext#getAccessibleSelection
*/
public interface AccessibleSelection {
/**
* Returns the number of {@code Accessible} children currently selected. If
* no children are selected, the return value will be 0.
*
* @return the number of items currently selected
*/
public int getAccessibleSelectionCount();
/**
* Returns an {@code Accessible} representing the specified selected child
* of the object. If there isn't a selection, or there are fewer children
* selected than the integer passed in, the return value will be
* {@code null}.
* <p>
* Note that the index represents the i-th selected child, which is
* different from the i-th child.
*
* @param i the zero-based index of selected children
* @return the i-th selected child
* @see #getAccessibleSelectionCount
*/
public Accessible getAccessibleSelection(int i);
/**
* Determines if the current child of this object is selected.
*
* @param i the zero-based index of the child in this {@code Accessible}
* object
* @return {@code true} if the current child of this object is selected;
* else {@code false}
* @see AccessibleContext#getAccessibleChild
*/
public boolean isAccessibleChildSelected(int i);
/**
* Adds the specified {@code Accessible} child of the object to the object's
* selection. If the object supports multiple selections, the specified
* child is added to any existing selection, otherwise it replaces any
* existing selection in the object. If the specified child is already
* selected, this method has no effect.
*
* @param i the zero-based index of the child
* @see AccessibleContext#getAccessibleChild
*/
public void addAccessibleSelection(int i);
/**
* Removes the specified child of the object from the object's selection. If
* the specified item isn't currently selected, this method has no effect.
*
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