001    /*
002     * Copyright 2006 Google Inc.
003     * 
004     * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005     * use this file except in compliance with the License. You may obtain a copy of
006     * the License at
007     * 
008     * http://www.apache.org/licenses/LICENSE-2.0
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013     * License for the specific language governing permissions and limitations under
014     * the License.
015     */
016    package com.google.gwt.user.client.ui;
017    
018    import java.util.Iterator;
019    
020    /**
021     * A widget that implements this interface contains
022     * {@link com.google.gwt.user.client.ui.Widget widgets} and can enumerate them.
023     */
024    public interface HasWidgets {
025    
026      /**
027       * Gets an iterator for the contained widgets.
028       */
029      Iterator iterator();
030    }