iconnection.h
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1 /*
2  * Copyright (C) 2005 Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 #ifndef TNTDB_IFACE_ICONNECTION_H
30 #define TNTDB_IFACE_ICONNECTION_H
31 
32 #include <cxxtools/refcounted.h>
33 #include <cxxtools/smartptr.h>
34 #include <string>
35 #include <map>
36 
37 namespace tntdb
38 {
39  class Result;
40  class Row;
41  class Value;
42  class Statement;
43  class IStatement;
44 
46  {
47  public:
48  typedef unsigned size_type;
49 
50  virtual void beginTransaction() = 0;
51  virtual void commitTransaction() = 0;
52  virtual void rollbackTransaction() = 0;
53 
54  virtual size_type execute(const std::string& query) = 0;
55  virtual Result select(const std::string& query) = 0;
56  virtual Row selectRow(const std::string& query) = 0;
57  virtual Value selectValue(const std::string& query) = 0;
58  virtual Statement prepare(const std::string& query) = 0;
59  virtual Statement prepareWithLimit(const std::string& query, const std::string& limit, const std::string& offset) = 0;
60  virtual Statement prepareCached(const std::string& query, const std::string& key) = 0;
61  virtual Statement prepareCachedWithLimit(const std::string& query, const std::string& limit, const std::string& offset, const std::string& key) = 0;
62  virtual void clearStatementCache() = 0;
63  virtual bool clearStatementCache(const std::string& key) = 0;
64  virtual bool ping() = 0;
65  virtual long lastInsertId(const std::string& name) = 0;
66  virtual void lockTable(const std::string& tablename, bool exclusive) = 0;
67  };
68 
70  {
71  typedef std::map<std::string, cxxtools::SmartPtr<IStatement> > stmtCacheType;
72  stmtCacheType stmtCache;
73 
74  public:
75  virtual Statement prepareCached(const std::string& query, const std::string& key);
76  virtual Statement prepareCachedWithLimit(const std::string& query, const std::string& limit, const std::string& offset, const std::string& key);
77  virtual void clearStatementCache();
78  virtual bool clearStatementCache(const std::string& key);
79  };
80 }
81 
82 #endif // TNTDB_IFACE_ICONNECTION_H
83