resultvalue.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_RESULTVALUE_H
30 #define TNTDB_POSTGRESQL_IMPL_RESULTVALUE_H
31 
32 #include <tntdb/iface/ivalue.h>
34 #include <tntdb/bits/row.h>
35 #include <libpq-fe.h>
36 
37 namespace tntdb
38 {
39  namespace postgresql
40  {
41  class ResultValue : public IValue
42  {
43  tntdb::Row tntdbRow; // keeps a reference to the row
44  ResultRow* row; // redundant type-safe pointer to tntdbRow
45  // (tntdbRow.getImpl() == row)
46  int tup_num;
47 
48  public:
49  ResultValue(ResultRow* row_, int tup_num_)
50  : tntdbRow(row_),
51  row(row_),
52  tup_num(tup_num_)
53  { }
54 
55  virtual bool isNull() const;
56  virtual bool getBool() const;
57  virtual short getShort() const;
58  virtual int getInt() const;
59  virtual long getLong() const;
60  virtual unsigned short getUnsignedShort() const;
61  virtual unsigned getUnsigned() const;
62  virtual unsigned long getUnsignedLong() const;
63  virtual int32_t getInt32() const;
64  virtual uint32_t getUnsigned32() const;
65  virtual int64_t getInt64() const;
66  virtual uint64_t getUnsigned64() const;
67  virtual Decimal getDecimal() const;
68  virtual float getFloat() const;
69  virtual double getDouble() const;
70  virtual char getChar() const;
71  virtual void getString(std::string& ret) const;
72  virtual void getBlob(Blob& ret) const;
73  virtual Date getDate() const;
74  virtual Time getTime() const;
75  virtual Datetime getDatetime() const;
76 
77  std::string getString() const { std::string ret; getString(ret); return ret; }
78  PGresult* getPGresult() const { return row->getPGresult(); }
79  };
80  }
81 }
82 
83 #endif // TNTDB_POSTGRESQL_IMPL_RESULTVALUE_H
84