001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    package org.apache.directory.shared.ldap.util.tree;
021    
022    
023    /**
024     * A leaf node which stores an element. These objects are stored in BranchNodes.
025     *
026     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
027     */
028    public class DnLeafNode<N> implements DnNode<N>
029    {
030        /** The stored partition */
031        private N element;
032    
033        
034        /**
035         * Creates a new instance of DnLeafNode.
036         *
037         * @param element the element to store
038         */
039        public DnLeafNode( N element )
040        {
041            this.element = element;
042        }
043    
044        
045        /**
046         * @see DnNode#isLeaf()
047         */
048        public boolean isLeaf()
049        {
050            return true;
051        }
052        
053    
054        /**
055         * @return Return the stored element
056         */
057        public N getElement()
058        {
059            return element;
060        }
061        
062        
063        /**
064         * {@inheritDoc}
065         */
066        public int size()
067        {
068            return 1;
069        }
070        
071        
072        /**
073         * @see Object#toString()
074         */
075        public String toString()
076        {
077            return element.toString();
078        }
079    }