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author | lbsa71 | 2008-03-03 07:48:35 +0000 |
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committer | lbsa71 | 2008-03-03 07:48:35 +0000 |
commit | b3b1f74485882c14478a6e74de0f7c9da13ff7d2 (patch) | |
tree | 146e00bb25325eef313336fc084d0bb102b7ab60 /OpenSim/Framework/Data.Base/BaseTableMapper.cs | |
parent | Thank you very much, Ahzzmandius for: (diff) | |
download | opensim-SC-b3b1f74485882c14478a6e74de0f7c9da13ff7d2.zip opensim-SC-b3b1f74485882c14478a6e74de0f7c9da13ff7d2.tar.gz opensim-SC-b3b1f74485882c14478a6e74de0f7c9da13ff7d2.tar.bz2 opensim-SC-b3b1f74485882c14478a6e74de0f7c9da13ff7d2.tar.xz |
* Started the ardous task to rename the TribalMedia.Framework.Data to OpenSim.Framework.Data.Base
It's you !!
How are you gentlemen !!
Diffstat (limited to 'OpenSim/Framework/Data.Base/BaseTableMapper.cs')
-rw-r--r-- | OpenSim/Framework/Data.Base/BaseTableMapper.cs | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/OpenSim/Framework/Data.Base/BaseTableMapper.cs b/OpenSim/Framework/Data.Base/BaseTableMapper.cs new file mode 100644 index 0000000..d69fcbb --- /dev/null +++ b/OpenSim/Framework/Data.Base/BaseTableMapper.cs | |||
@@ -0,0 +1,280 @@ | |||
1 | /* | ||
2 | * Copyright (c) Tribal Media AB, http://tribalmedia.se/ | ||
3 | * | ||
4 | * Redistribution and use in source and binary forms, with or without | ||
5 | * modification, are permitted provided that the following conditions are met: | ||
6 | * * Redistributions of source code must retain the above copyright | ||
7 | * notice, this list of conditions and the following disclaimer. | ||
8 | * * Redistributions in binary form must reproduce the above copyright | ||
9 | * notice, this list of conditions and the following disclaimer in the | ||
10 | * documentation and/or other materials provided with the distribution. | ||
11 | * * The name of Tribal Media AB may not be used to endorse or promote products | ||
12 | * derived from this software without specific prior written permission. | ||
13 | * | ||
14 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY | ||
15 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
16 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
17 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY | ||
18 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
19 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
20 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
21 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
23 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
24 | * | ||
25 | */ | ||
26 | |||
27 | using System; | ||
28 | using System.Data; | ||
29 | using System.Data.Common; | ||
30 | using TribalMedia.Framework.Data; | ||
31 | |||
32 | namespace TribalMedia.Framework.Data | ||
33 | { | ||
34 | public abstract class BaseTableMapper | ||
35 | { | ||
36 | private readonly BaseDatabaseConnector m_database; | ||
37 | private readonly object m_syncRoot = new object(); | ||
38 | |||
39 | protected void WithConnection(Action<DbConnection> action) | ||
40 | { | ||
41 | lock (m_syncRoot) | ||
42 | { | ||
43 | DbConnection m_connection = m_database.GetNewConnection(); | ||
44 | |||
45 | if (m_connection.State != ConnectionState.Open) | ||
46 | { | ||
47 | m_connection.Open(); | ||
48 | } | ||
49 | |||
50 | action(m_connection); | ||
51 | |||
52 | if (m_connection.State == ConnectionState.Open) | ||
53 | { | ||
54 | m_connection.Close(); | ||
55 | } | ||
56 | } | ||
57 | } | ||
58 | |||
59 | private readonly string m_tableName; | ||
60 | public string TableName | ||
61 | { | ||
62 | get { return m_tableName; } | ||
63 | } | ||
64 | |||
65 | protected BaseSchema m_schema; | ||
66 | public BaseSchema Schema | ||
67 | { | ||
68 | get { return m_schema; } | ||
69 | } | ||
70 | |||
71 | protected BaseFieldMapper m_keyFieldMapper; | ||
72 | public BaseFieldMapper KeyFieldMapper | ||
73 | { | ||
74 | get { return m_keyFieldMapper; } | ||
75 | } | ||
76 | |||
77 | public BaseTableMapper(BaseDatabaseConnector database, string tableName) | ||
78 | { | ||
79 | m_database = database; | ||
80 | m_tableName = tableName.ToLower(); // Stupid MySQL hack. | ||
81 | } | ||
82 | |||
83 | public string CreateParamName(string fieldName) | ||
84 | { | ||
85 | return m_database.CreateParamName(fieldName); | ||
86 | } | ||
87 | |||
88 | protected DbCommand CreateSelectCommand(DbConnection connection, string fieldName, object primaryKey) | ||
89 | { | ||
90 | return m_database.CreateSelectCommand(this, connection, fieldName, primaryKey); | ||
91 | } | ||
92 | |||
93 | public string CreateCondition(DbCommand command, string fieldName, object key) | ||
94 | { | ||
95 | return m_database.CreateCondition(this, command, fieldName, key); | ||
96 | } | ||
97 | |||
98 | public DbCommand CreateInsertCommand(DbConnection connection, object obj) | ||
99 | { | ||
100 | return m_database.CreateInsertCommand(this, connection, obj); | ||
101 | } | ||
102 | |||
103 | public DbCommand CreateUpdateCommand(DbConnection connection, object rowMapper, object primaryKey) | ||
104 | { | ||
105 | return m_database.CreateUpdateCommand(this, connection, rowMapper, primaryKey); | ||
106 | } | ||
107 | |||
108 | public object ConvertToDbType(object value) | ||
109 | { | ||
110 | return m_database.ConvertToDbType(value); | ||
111 | } | ||
112 | |||
113 | protected virtual BaseDataReader CreateReader(IDataReader reader) | ||
114 | { | ||
115 | return m_database.CreateReader(reader); | ||
116 | } | ||
117 | } | ||
118 | |||
119 | public abstract class BaseTableMapper<TRowMapper, TPrimaryKey> : BaseTableMapper | ||
120 | { | ||
121 | public BaseTableMapper(BaseDatabaseConnector database, string tableName) | ||
122 | : base(database, tableName) | ||
123 | { | ||
124 | } | ||
125 | |||
126 | // HACK: This is a temporary function used by TryGetValue(). | ||
127 | // Due to a bug in mono 1.2.6, delegate blocks cannot contain | ||
128 | // a using() block. This has been fixed in SVN, so the next | ||
129 | // mono release should work. | ||
130 | private void TryGetConnectionValue(DbConnection connection, TPrimaryKey primaryKey, ref TRowMapper result, ref bool success) | ||
131 | { | ||
132 | using ( | ||
133 | DbCommand command = | ||
134 | CreateSelectCommand(connection, KeyFieldMapper.FieldName, primaryKey)) | ||
135 | { | ||
136 | using (IDataReader reader = command.ExecuteReader()) | ||
137 | { | ||
138 | if (reader.Read()) | ||
139 | { | ||
140 | result = FromReader( CreateReader(reader)); | ||
141 | success = true; | ||
142 | } | ||
143 | else | ||
144 | { | ||
145 | success = false; | ||
146 | } | ||
147 | } | ||
148 | } | ||
149 | } | ||
150 | |||
151 | public bool TryGetValue(TPrimaryKey primaryKey, out TRowMapper value) | ||
152 | { | ||
153 | TRowMapper result = default(TRowMapper); | ||
154 | bool success = false; | ||
155 | |||
156 | WithConnection(delegate(DbConnection connection) | ||
157 | { | ||
158 | TryGetConnectionValue(connection, primaryKey, ref result, ref success); | ||
159 | }); | ||
160 | |||
161 | value = result; | ||
162 | |||
163 | return success; | ||
164 | } | ||
165 | |||
166 | // HACK: This is a temporary function used by Remove(). | ||
167 | // Due to a bug in mono 1.2.6, delegate blocks cannot contain | ||
168 | // a using() block. This has been fixed in SVN, so the next | ||
169 | // mono release should work. | ||
170 | protected virtual void TryDelete(DbConnection connection, TPrimaryKey id, ref int deleted) | ||
171 | { | ||
172 | using ( | ||
173 | DbCommand command = | ||
174 | CreateDeleteCommand(connection, KeyFieldMapper.FieldName, id)) | ||
175 | { | ||
176 | deleted = command.ExecuteNonQuery(); | ||
177 | } | ||
178 | } | ||
179 | |||
180 | public virtual bool Remove(TPrimaryKey id) | ||
181 | { | ||
182 | int deleted = 0; | ||
183 | |||
184 | WithConnection(delegate(DbConnection connection) | ||
185 | { | ||
186 | TryDelete(connection, id, ref deleted); | ||
187 | }); | ||
188 | |||
189 | if (deleted == 1) | ||
190 | { | ||
191 | return true; | ||
192 | } | ||
193 | else | ||
194 | { | ||
195 | return false; | ||
196 | } | ||
197 | } | ||
198 | |||
199 | public DbCommand CreateDeleteCommand(DbConnection connection, string fieldName, TPrimaryKey primaryKey) | ||
200 | { | ||
201 | string table = TableName; | ||
202 | |||
203 | DbCommand command = connection.CreateCommand(); | ||
204 | |||
205 | string conditionString = CreateCondition(command, fieldName, primaryKey); | ||
206 | |||
207 | string query = | ||
208 | String.Format("delete from {0} where {1}", table, conditionString); | ||
209 | |||
210 | command.CommandText = query; | ||
211 | command.CommandType = CommandType.Text; | ||
212 | |||
213 | return command; | ||
214 | } | ||
215 | |||
216 | // HACK: This is a temporary function used by Update(). | ||
217 | // Due to a bug in mono 1.2.6, delegate blocks cannot contain | ||
218 | // a using() block. This has been fixed in SVN, so the next | ||
219 | // mono release should work. | ||
220 | protected void TryUpdate(DbConnection connection, TPrimaryKey primaryKey, TRowMapper value, ref int updated) | ||
221 | { | ||
222 | using (DbCommand command = CreateUpdateCommand(connection, value, primaryKey)) | ||
223 | { | ||
224 | updated = command.ExecuteNonQuery(); | ||
225 | } | ||
226 | } | ||
227 | |||
228 | public virtual bool Update(TPrimaryKey primaryKey, TRowMapper value) | ||
229 | { | ||
230 | int updated = 0; | ||
231 | |||
232 | WithConnection(delegate(DbConnection connection) | ||
233 | { | ||
234 | TryUpdate(connection, primaryKey, value, ref updated); | ||
235 | }); | ||
236 | |||
237 | if (updated == 1) | ||
238 | { | ||
239 | return true; | ||
240 | } | ||
241 | else | ||
242 | { | ||
243 | return false; | ||
244 | } | ||
245 | } | ||
246 | |||
247 | // HACK: This is a temporary function used by Add(). | ||
248 | // Due to a bug in mono 1.2.6, delegate blocks cannot contain | ||
249 | // a using() block. This has been fixed in SVN, so the next | ||
250 | // mono release should work. | ||
251 | protected void TryAdd(DbConnection connection, TRowMapper value, ref int added) | ||
252 | { | ||
253 | using (DbCommand command = CreateInsertCommand(connection, value)) | ||
254 | { | ||
255 | added = command.ExecuteNonQuery(); | ||
256 | } | ||
257 | } | ||
258 | |||
259 | public virtual bool Add(TRowMapper value) | ||
260 | { | ||
261 | int added = 0; | ||
262 | |||
263 | WithConnection(delegate(DbConnection connection) | ||
264 | { | ||
265 | TryAdd(connection, value, ref added); | ||
266 | }); | ||
267 | |||
268 | if (added == 1) | ||
269 | { | ||
270 | return true; | ||
271 | } | ||
272 | else | ||
273 | { | ||
274 | return false; | ||
275 | } | ||
276 | } | ||
277 | |||
278 | public abstract TRowMapper FromReader(BaseDataReader reader); | ||
279 | } | ||
280 | } \ No newline at end of file | ||