1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, 13 * software distributed under the License is distributed on an 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 15 * KIND, either express or implied. See the License for the 16 * specific language governing permissions and limitations 17 * under the License. 18 * 19 */ 20 package org.apache.directory.mavibot.btree.memory; 21 22 23 /** 24 * A class to hold a single value or multiple values (in a sub-tree) of a key. 25 * 26 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 27 */ 28 public class DuplicateKeyVal<V> 29 { 30 private V singleValue; 31 32 private BTree<V, V> subTree; 33 34 35 /** No Qualifier */ 36 DuplicateKeyVal( V singleValue ) 37 { 38 this.singleValue = singleValue; 39 } 40 41 42 /** No Qualifier */ 43 DuplicateKeyVal( BTree<V, V> subTree ) 44 { 45 this.subTree = subTree; 46 } 47 48 49 public boolean isSingleValue() 50 { 51 return ( singleValue != null ); 52 } 53 54 55 /** 56 * @return the singleValue 57 */ 58 public V getSingleValue() 59 { 60 return singleValue; 61 } 62 63 64 /** 65 * @return the subTree 66 */ 67 public BTree<V, V> getSubTree() 68 { 69 return subTree; 70 } 71 72 }