Home » openjdk-7 » java » awt » [javadoc | source]

    1   /*
    2    * Copyright (c) 1996, 2000, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package java.awt;
   27   
   28   import java.awt.event;
   29   
   30   /**
   31    * The interface for objects which contain a set of items for
   32    * which zero or more can be selected.
   33    *
   34    * @author Amy Fowler
   35    */
   36   
   37   public interface ItemSelectable {
   38   
   39       /**
   40        * Returns the selected items or <code>null</code> if no
   41        * items are selected.
   42        */
   43       public Object[] getSelectedObjects();
   44   
   45       /**
   46        * Adds a listener to receive item events when the state of an item is
   47        * changed by the user. Item events are not sent when an item's
   48        * state is set programmatically.  If <code>l</code> is
   49        * <code>null</code>, no exception is thrown and no action is performed.
   50        *
   51        * @param    l the listener to receive events
   52        * @see ItemEvent
   53        */
   54       public void addItemListener(ItemListener l);
   55   
   56       /**
   57        * Removes an item listener.
   58        * If <code>l</code> is <code>null</code>,
   59        * no exception is thrown and no action is performed.
   60        *
   61        * @param   l the listener being removed
   62        * @see ItemEvent
   63        */
   64       public void removeItemListener(ItemListener l);
   65   }

Home » openjdk-7 » java » awt » [javadoc | source]