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annotate Framework/PostgreSQL/PostgreSQLResult.h @ 329:b5fb8b77ce4d

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initial commit of ODBC framework
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 10 Aug 2021 20:08:53 +0200
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children 16aac0287485
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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3236894320d6 upgrade to year 2021
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #pragma once
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23
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24 #if ORTHANC_ENABLE_POSTGRESQL != 1
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25 # error PostgreSQL support must be enabled to use this file
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26 #endif
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28 #include "PostgreSQLStatement.h"
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30 namespace OrthancDatabases
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31 {
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32 class PostgreSQLResult : public boost::noncopyable
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33 {
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34 private:
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35 class LargeObjectResult;
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36
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37 void *result_; /* Object of type "PGresult*" */
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38 int position_;
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39 PostgreSQLDatabase& database_;
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40 unsigned int columnsCount_;
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41
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42 void Clear();
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43
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44 void CheckDone();
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45
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46 void CheckColumn(unsigned int column, /*Oid*/ unsigned int expectedType) const;
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48 public:
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49 explicit PostgreSQLResult(PostgreSQLStatement& statement);
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51 ~PostgreSQLResult();
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53 void Next();
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54
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55 bool IsDone() const
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56 {
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57 return result_ == NULL;
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58 }
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60 unsigned int GetColumnsCount() const
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61 {
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62 return columnsCount_;
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63 }
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64
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65 bool IsNull(unsigned int column) const;
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67 bool GetBoolean(unsigned int column) const;
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69 int GetInteger(unsigned int column) const;
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71 int64_t GetInteger64(unsigned int column) const;
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73 std::string GetString(unsigned int column) const;
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75 std::string GetLargeObjectOid(unsigned int column) const;
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77 void GetLargeObjectContent(std::string& content,
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78 unsigned int column) const;
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80 IValue* GetValue(unsigned int column) const;
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81 };
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82 }