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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.core.session;
21  
22  /**
23   * An {@link Enum} that represents the type of I/O events and requests.
24   * Most users won't need to use this class.  It is usually used by internal
25   * components to store I/O events.
26   *
27   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
28   */
29  public enum IoEventType {
30      /** The session has been created */
31      SESSION_CREATED,
32      
33      /** The session has been opened */
34      SESSION_OPENED, 
35      
36      /** The session has been closed */
37      SESSION_CLOSED, 
38      
39      /** A message has been received */
40      MESSAGE_RECEIVED, 
41      
42      /** A message has been sent */
43      MESSAGE_SENT, 
44      
45      /** The session is idle */
46      SESSION_IDLE, 
47      
48      /** An exception has been caught */ 
49      EXCEPTION_CAUGHT, 
50      
51      /** A write has pccired */
52      WRITE, 
53      
54      /** A close has occured */
55      CLOSE,
56  }