annotate Framework/Odbc/OdbcResult.h @ 524:48aba35fe64e large-queries

merged BEGIN and SET TRANSACTION statements
author Alain Mazy <am@orthanc.team>
date Tue, 09 Jul 2024 16:30:52 +0200
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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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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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ecd0b719cff5 update year to 2024
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU Affero General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * Affero General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU Affero General Public License
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20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 **/
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24 #pragma once
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26 #include "OdbcStatement.h"
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28 #include "../Common/IResult.h"
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30 #include <Compatibility.h>
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32 #include <sqltypes.h>
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33 #include <vector>
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36 namespace OrthancDatabases
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37 {
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38 class OdbcResult : public IResult
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39 {
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40 private:
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41 OdbcStatement& statement_;
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42 Dialect dialect_;
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43 bool first_;
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44 bool done_;
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45 std::vector<SQLLEN> types_;
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46 std::vector<std::string> typeNames_;
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47 std::vector<IValue*> values_;
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49 void LoadFirst();
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51 void SetValue(size_t index,
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52 IValue* value);
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53
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54 void ReadString(std::string& target,
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55 size_t column,
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56 bool isBinary);
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58 public:
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59 OdbcResult(OdbcStatement& statement,
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60 Dialect dialect);
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62 virtual ~OdbcResult();
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63
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64 virtual void SetExpectedType(size_t field,
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65 ValueType type) ORTHANC_OVERRIDE;
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67 virtual bool IsDone() const ORTHANC_OVERRIDE;
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69 virtual void Next() ORTHANC_OVERRIDE;
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71 virtual size_t GetFieldsCount() const ORTHANC_OVERRIDE
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72 {
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73 return values_.size();
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74 }
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76 virtual const IValue& GetField(size_t field) const ORTHANC_OVERRIDE;
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77 };
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78 }