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Java > Open Source Codes > org > apache > commons > net > pop3 > POP3Command


1 /*
2  * Copyright 2001-2005 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.net.pop3;
17
18 /***
19  * POP3Command stores POP3 command code constants.
20  * <p>
21  * <p>
22  * @author Daniel F. Savarese
23  ***/
24
25 public final class POP3Command
26 {
27     /*** Send user name. ***/
28     public static final int USER = 0;
29     /*** Send password. ***/
30     public static final int PASS = 1;
31     /*** Quit session. ***/
32     public static final int QUIT = 2;
33     /*** Get status. ***/
34     public static final int STAT = 3;
35     /*** List message(s). ***/
36     public static final int LIST = 4;
37     /*** Retrieve message(s). ***/
38     public static final int RETR = 5;
39     /*** Delete message(s). ***/
40     public static final int DELE = 6;
41     /*** No operation. Used as a session keepalive. ***/
42     public static final int NOOP = 7;
43     /*** Reset session. ***/
44     public static final int RSET = 8;
45     /*** Authorization. ***/
46     public static final int APOP = 9;
47     /*** Retrieve top number lines from message. ***/
48     public static final int TOP = 10;
49     /*** List unique message identifier(s). ***/
50     public static final int UIDL = 11;
51
52     static final String JavaDoc[] _commands = {
53                                           "USER", "PASS", "QUIT", "STAT", "LIST", "RETR", "DELE", "NOOP", "RSET",
54                                           "APOP", "TOP", "UIDL"
55                                       };
56
57     // Cannot be instantiated.
58 private POP3Command()
59     {}
60
61     /***
62      * Get the POP3 protocol string command corresponding to a command code.
63      * <p>
64      * @return The POP3 protocol string command corresponding to a command code.
65      ***/
66     public static final String JavaDoc getCommand(int command)
67     {
68         return _commands[command];
69     }
70 }
71
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