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-rw-r--r--OpenSim/Data/Migrations/Migration.cs77
1 files changed, 77 insertions, 0 deletions
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSim Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Collections.Generic;
30using System.Data;
31using System.IO;
32using System.Reflection;
33
34namespace OpenSim.Data.Migrations
35{
36 /// <summary>
37 ///
38 /// The Migration theory is based on the ruby on rails concept.
39 /// Each database driver is going to be allowed to have files in
40 /// Resources that specify the database migrations. They will be
41 /// of the form:
42 ///
43 /// 001_Users.sql
44 /// 002_Users.sql
45 /// 003_Users.sql
46 /// 001_Prims.sql
47 /// 002_Prims.sql
48 /// ...etc...
49 ///
50 /// When a database driver starts up, it specifies a resource that
51 /// needs to be brought up to the current revision. For instance:
52 ///
53 /// Migration um = new Migration("Users");
54 /// um.Upgrade(dbconnection);
55 ///
56 /// This works out which version Users is at, and applies all the
57 /// revisions past it to it. If there is no users table, all
58 /// revisions are applied in order. Consider each future
59 /// migration to be an incremental roll forward of the tables in
60 /// question.
61 ///
62 /// </summary>
63
64 public class Migration
65 {
66 private string _type;
67
68 public Migration(string type)
69 {
70 _type = type;
71 }
72
73
74 }
75
76
77} \ No newline at end of file