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annotate Framework/Common/ImplicitTransaction.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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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 "ITransaction.h"
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28 #include <Compatibility.h>
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30 namespace OrthancDatabases
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31 {
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32 class ImplicitTransaction : public ITransaction
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33 {
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34 private:
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35 enum State
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36 {
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37 State_Ready,
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38 State_Executed,
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39 State_Committed
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40 };
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42 State state_;
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44 void CheckStateForExecution();
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46 protected:
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47 virtual IResult* ExecuteInternal(IPrecompiledStatement& statement,
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48 const Dictionary& parameters) = 0;
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50 virtual void ExecuteWithoutResultInternal(IPrecompiledStatement& statement,
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51 const Dictionary& parameters) = 0;
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53 public:
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54 ImplicitTransaction();
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56 virtual ~ImplicitTransaction();
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57
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58 virtual bool IsImplicit() const ORTHANC_OVERRIDE
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59 {
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60 return true;
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61 }
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63 virtual void Rollback() ORTHANC_OVERRIDE;
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65 virtual void Commit() ORTHANC_OVERRIDE;
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67 virtual IResult* Execute(IPrecompiledStatement& statement,
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68 const Dictionary& parameters) ORTHANC_OVERRIDE;
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70 virtual void ExecuteWithoutResult(IPrecompiledStatement& statement,
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71 const Dictionary& parameters) ORTHANC_OVERRIDE;
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73 static void SetErrorOnDoubleExecution(bool isError);
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75 static bool IsErrorOnDoubleExecution();
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76 };
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77 }