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annotate Framework/MySQL/MySQLStatement.h @ 522:c49136b34891 large-queries tip

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use a prepared statement for InsertOrUpdateMetadata
author Alain Mazy <am@orthanc.team>
date Fri, 05 Jul 2024 09:15:54 +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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25
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26 #if ORTHANC_ENABLE_MYSQL != 1
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27 # error MySQL support must be enabled to use this file
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28 #endif
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30 #include "MySQLDatabase.h"
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31 #include "../Common/GenericFormatter.h"
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32
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33 namespace OrthancDatabases
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34 {
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35 class MySQLStatement : public IPrecompiledStatement
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36 {
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37 private:
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38 class ResultField;
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39 class ResultMetadata;
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40
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41 void Close();
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42
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43 MySQLDatabase& db_;
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44 MYSQL_STMT *statement_;
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45 GenericFormatter formatter_;
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46 std::vector<ResultField*> result_;
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47 std::vector<MYSQL_BIND> outputs_;
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48
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49 public:
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50 MySQLStatement(MySQLDatabase& db,
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51 const Query& query);
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53 virtual ~MySQLStatement();
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55 MYSQL_STMT* GetObject();
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57 size_t GetResultFieldsCount() const
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58 {
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59 return result_.size();
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60 }
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61
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62 IValue* FetchResultField(size_t i);
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64 IResult* Execute(ITransaction& transaction,
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65 const Dictionary& parameters);
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67 void ExecuteWithoutResult(ITransaction& transaction,
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68 const Dictionary& parameters);
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69 };
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70 }