001    /*
002     * $Id: ITreeContentProvider.java 1103095 2011-05-14 13:18:29Z simonetripodi $
003     * Licensed to the Apache Software Foundation (ASF) under one
004     * or more contributor license agreements.  See the NOTICE file
005     * distributed with this work for additional information
006     * regarding copyright ownership.  The ASF licenses this file
007     * to you under the Apache License, Version 2.0 (the
008     * "License"); you may not use this file except in compliance
009     * with the License.  You may obtain a copy of the License at
010     *
011     * http://www.apache.org/licenses/LICENSE-2.0
012     *
013     * Unless required by applicable law or agreed to in writing,
014     * software distributed under the License is distributed on an
015     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016     * KIND, either express or implied.  See the License for the
017     * specific language governing permissions and limitations
018     * under the License.
019     */
020    package org.apache.commons.ognl.test.objects;
021    
022    import java.util.Collection;
023    
024    /**
025     *
026     */
027    public interface ITreeContentProvider
028        extends IContentProvider
029    {
030    
031        public Collection getChildren( Object parentElement );
032    
033        public boolean hasChildren( Object parentElement );
034    }