cursor.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_POSTGRESQL_IMPL_CURSOR_H
30 #define TNTDB_POSTGRESQL_IMPL_CURSOR_H
31 
32 #include <tntdb/iface/icursor.h>
34 #include <tntdb/bits/statement.h>
35 #include <tntdb/bits/result.h>
36 
37 namespace tntdb
38 {
39  namespace postgresql
40  {
41  class Cursor : public ICursor
42  {
43  tntdb::Statement tntdbStmt;
44  Statement* stmt;
45 
46  std::string cursorName;
47  tntdb::Result currentResult;
48  unsigned currentRow;
49 
50  unsigned fetchSize;
51 
52  public:
53  Cursor(Statement* statement, unsigned fetchSize);
54  ~Cursor();
55 
56  // method for ICursor
57  Row fetch();
58 
59  // specific methods
60  PGconn* getPGConn() { return stmt->getPGConn(); }
61 
67  void setFetchSize(unsigned fs) { fetchSize = fs; }
68  unsigned getFetchSize() const { return fetchSize; }
69  };
70  }
71 }
72 
73 #endif // TNTDB_POSTGRESQL_IMPL_CURSOR_H
74