| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.axis2.util; |
| |
| import java.util.ArrayList; |
| import java.util.Hashtable; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * This will make a hash map which can contain multiple entries for the same hash value. |
| */ |
| public class MultipleEntryHashMap { |
| |
| private Map table; |
| |
| public MultipleEntryHashMap() { |
| this.table = new Hashtable(1); |
| } |
| |
| /** |
| * If you call get once in this, it will remove that item from the map |
| * |
| * @param key |
| * @return |
| */ |
| public Object get(Object key) { |
| ArrayList list = (ArrayList) table.get(key); |
| if (list != null && list.size() > 0) { |
| Object o = list.get(0); |
| list.remove(0); |
| // if (list.size() == 0) { |
| // table.remove(key); |
| // } |
| return o; |
| } |
| |
| return null; |
| |
| } |
| |
| public Object put(Object key, Object value) { |
| ArrayList list = (ArrayList) table.get(key); |
| if (list == null) { |
| ArrayList listToBeAdded = new ArrayList(); |
| table.put(key, listToBeAdded); |
| listToBeAdded.add(value); |
| } else { |
| list.add(value); |
| } |
| |
| return value; |
| } |
| |
| public Set keySet() { |
| |
| return table.keySet(); |
| } |
| } |