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.mina.common; 21 22 import java.util.Comparator; 23 24 /** 25 * Provides data structures to a newly created session. 26 * 27 * @author The Apache MINA Project (dev@mina.apache.org) 28 * @version $Rev: 592697 $, $Date: 2007-11-07 04:01:58 -0700 (Wed, 07 Nov 2007) $ 29 */ 30 public interface IoSessionDataStructureFactory { 31 /** 32 * Returns an {@link IoSessionAttributeMap} which is going to be associated 33 * with the specified <tt>session</tt>. Please note that the returned 34 * implementation must be thread-safe. 35 */ 36 IoSessionAttributeMap getAttributeMap(IoSession session) throws Exception; 37 38 /** 39 * Returns an {@link WriteRequest} which is going to be associated with 40 * the specified <tt>session</tt>. Please note that the returned 41 * implementation must be thread-safe and robust enough to deal 42 * with various messages types (even what you didn't expect at all), 43 * especially when you are going to implement a priority queue which 44 * involves {@link Comparator}. 45 */ 46 WriteRequestQueue getWriteRequestQueue(IoSession session) throws Exception; 47 }