01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
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)
37: throws Exception;
38:
39: /**
40: * Returns an {@link WriteRequest} which is going to be associated with
41: * the specified <tt>session</tt>. Please note that the returned
42: * implementation must be thread-safe and robust enough to deal
43: * with various messages types (even what you didn't expect at all),
44: * especially when you are going to implement a priority queue which
45: * involves {@link Comparator}.
46: */
47: WriteRequestQueue getWriteRequestQueue(IoSession session)
48: throws Exception;
49: }
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