Mercurial > hg > orthanc
annotate OrthancFramework/Sources/SQLite/Statement.h @ 5450:9ffd6d18daf3 pg-transactions
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| author | Alain Mazy <am@osimis.io> |
|---|---|
| date | Tue, 05 Dec 2023 16:26:35 +0100 |
| parents | 0ea402b4d901 |
| children | 48b8dae6dc77 |
| rev | line source |
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| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * |
| 3063 | 4 * Copyright (C) 2012-2016 Sebastien Jodogne <s.jodogne@orthanc-labs.com>, |
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5 * Medical Physics Department, CHU of Liege, Belgium |
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6 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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7 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 0 | 8 * |
| 17 | 9 * Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 10 * | |
| 11 * Redistribution and use in source and binary forms, with or without | |
| 12 * modification, are permitted provided that the following conditions are | |
| 13 * met: | |
| 0 | 14 * |
| 17 | 15 * * Redistributions of source code must retain the above copyright |
| 16 * notice, this list of conditions and the following disclaimer. | |
| 17 * * Redistributions in binary form must reproduce the above | |
| 18 * copyright notice, this list of conditions and the following disclaimer | |
| 19 * in the documentation and/or other materials provided with the | |
| 20 * distribution. | |
| 21 * * Neither the name of Google Inc., the name of the CHU of Liege, | |
| 22 * nor the names of its contributors may be used to endorse or promote | |
| 23 * products derived from this software without specific prior written | |
| 24 * permission. | |
| 25 * | |
| 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 27 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 28 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 29 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 30 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 31 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 33 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 34 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 35 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 36 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 0 | 37 **/ |
| 38 | |
| 39 | |
| 40 #pragma once | |
| 41 | |
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42 #include "NonCopyable.h" |
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43 #include "OrthancSQLiteException.h" |
| 0 | 44 #include "StatementId.h" |
| 45 #include "StatementReference.h" | |
| 46 | |
| 47 #include <vector> | |
| 48 #include <stdint.h> | |
| 265 | 49 |
| 50 #if ORTHANC_BUILD_UNIT_TESTS == 1 | |
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51 # include <gtest/gtest_prod.h> |
| 265 | 52 #endif |
| 0 | 53 |
| 54 | |
| 59 | 55 namespace Orthanc |
| 0 | 56 { |
| 57 namespace SQLite | |
| 58 { | |
| 59 class Connection; | |
| 60 | |
| 61 // Possible return values from ColumnType in a statement. These | |
| 62 // should match the values in sqlite3.h. | |
| 63 enum ColumnType | |
| 64 { | |
| 65 COLUMN_TYPE_INTEGER = 1, | |
| 66 COLUMN_TYPE_FLOAT = 2, | |
| 67 COLUMN_TYPE_TEXT = 3, | |
| 68 COLUMN_TYPE_BLOB = 4, | |
| 69 COLUMN_TYPE_NULL = 5 | |
| 70 }; | |
| 71 | |
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72 class ORTHANC_PUBLIC Statement : public NonCopyable |
| 0 | 73 { |
| 74 friend class Connection; | |
| 265 | 75 |
| 76 #if ORTHANC_BUILD_UNIT_TESTS == 1 | |
| 138 | 77 FRIEND_TEST(SQLStatementTest, Run); |
| 78 FRIEND_TEST(SQLStatementTest, Reset); | |
| 265 | 79 #endif |
| 0 | 80 |
| 81 private: | |
| 82 StatementReference reference_; | |
| 83 | |
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84 int CheckError(int err, |
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85 ErrorCode code) const; |
| 0 | 86 |
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87 void CheckOk(int err, |
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88 ErrorCode code) const; |
| 0 | 89 |
| 90 struct sqlite3_stmt* GetStatement() const | |
| 91 { | |
| 92 return reference_.GetWrappedObject(); | |
| 93 } | |
| 94 | |
| 95 public: | |
| 96 Statement(Connection& database, | |
| 97 const std::string& sql); | |
| 98 | |
| 99 Statement(Connection& database, | |
| 100 const StatementId& id, | |
| 101 const std::string& sql); | |
| 102 | |
| 103 Statement(Connection& database, | |
| 104 const char* sql); | |
| 105 | |
| 106 Statement(Connection& database, | |
| 107 const StatementId& id, | |
| 108 const char* sql); | |
| 109 | |
| 4304 | 110 ~Statement(); |
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111 |
| 0 | 112 bool Run(); |
| 113 | |
| 114 bool Step(); | |
| 115 | |
| 116 // Diagnostics -------------------------------------------------------------- | |
| 117 | |
| 118 std::string GetOriginalSQLStatement(); | |
| 119 | |
| 120 | |
| 121 // Binding ------------------------------------------------------------------- | |
| 122 | |
| 123 // These all take a 0-based argument index | |
| 124 void BindNull(int col); | |
| 125 void BindBool(int col, bool val); | |
| 126 void BindInt(int col, int val); | |
| 127 void BindInt64(int col, int64_t val); | |
| 128 void BindDouble(int col, double val); | |
| 129 void BindCString(int col, const char* val); | |
| 130 void BindString(int col, const std::string& val); | |
| 131 //void BindString16(int col, const string16& value); | |
| 132 void BindBlob(int col, const void* value, int value_len); | |
| 133 | |
| 134 | |
| 135 // Retrieving ---------------------------------------------------------------- | |
| 136 | |
| 137 // Returns the number of output columns in the result. | |
| 138 int ColumnCount() const; | |
| 139 | |
| 140 // Returns the type associated with the given column. | |
| 141 // | |
| 142 // Watch out: the type may be undefined if you've done something to cause a | |
| 143 // "type conversion." This means requesting the value of a column of a type | |
| 144 // where that type is not the native type. For safety, call ColumnType only | |
| 145 // on a column before getting the value out in any way. | |
| 146 ColumnType GetColumnType(int col) const; | |
| 147 ColumnType GetDeclaredColumnType(int col) const; | |
| 148 | |
| 149 // These all take a 0-based argument index. | |
| 80 | 150 bool ColumnIsNull(int col) const ; |
| 0 | 151 bool ColumnBool(int col) const; |
| 152 int ColumnInt(int col) const; | |
| 153 int64_t ColumnInt64(int col) const; | |
| 154 double ColumnDouble(int col) const; | |
| 155 std::string ColumnString(int col) const; | |
| 156 //string16 ColumnString16(int col) const; | |
| 157 | |
| 158 // When reading a blob, you can get a raw pointer to the underlying data, | |
| 159 // along with the length, or you can just ask us to copy the blob into a | |
| 160 // vector. Danger! ColumnBlob may return NULL if there is no data! | |
| 161 int ColumnByteLength(int col) const; | |
| 162 const void* ColumnBlob(int col) const; | |
| 163 bool ColumnBlobAsString(int col, std::string* blob); | |
| 164 //bool ColumnBlobAsString16(int col, string16* val) const; | |
| 724 | 165 //bool ColumnBlobAsVector(int col, std::vector<char>* val) const; |
| 166 //bool ColumnBlobAsVector(int col, std::vector<unsigned char>* val) const; | |
| 0 | 167 |
| 724 | 168 // Resets the statement to its initial condition. This includes any current |
| 169 // result row, and also the bound variables if the |clear_bound_vars| is true. | |
| 170 void Reset(bool clear_bound_vars = true); | |
| 0 | 171 }; |
| 172 } | |
| 173 } |