/*
* Copyright (c) 1997, 2000, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package javax.swing;
/**
* A data model for a combo box. This interface extends <code>ListDataModel</code>
* and adds the concept of a <i>selected item</i>. The selected item is generally
* the item which is visible in the combo box display area.
* <p>
* The selected item may not necessarily be managed by the underlying
* <code>ListModel</code>. This disjoint behavior allows for the temporary
* storage and retrieval of a selected item in the model.
*
* @param <E> the type of the elements of this model
*
* @author Arnaud Weber
*/
public interface ComboBoxModel<E> extends ListModel<E> {
/**
* Set the selected item. The implementation of this method should notify
* all registered <code>ListDataListener</code>s that the contents
* have changed.
*
* @param anItem the list object to select or <code>null</code>
* to clear the selection
*/
void setSelectedItem(Object anItem);
/**
* Returns the selected item
* @return The selected item or <code>null</code> if there is no selection
*/
Object getSelectedItem();
}