Mercurial > hg > orthanc
view Core/SQLite/Statement.h @ 2:67a6978503b7
fixing Windows build
author | Jodogne@Laptop |
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date | Thu, 19 Jul 2012 22:33:27 +0200 |
parents | 3959d33612cc |
children | db4d996ea264 |
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/** * Palantir - A Lightweight, RESTful DICOM Store * Copyright (C) 2012 Medical Physics Department, CHU of Liege, * Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #pragma once #include "../PalantirException.h" #include "StatementId.h" #include "StatementReference.h" #include <vector> #include <stdint.h> #include <boost/noncopyable.hpp> struct sqlite3_stmt; namespace Palantir { namespace SQLite { class Connection; // Possible return values from ColumnType in a statement. These // should match the values in sqlite3.h. enum ColumnType { COLUMN_TYPE_INTEGER = 1, COLUMN_TYPE_FLOAT = 2, COLUMN_TYPE_TEXT = 3, COLUMN_TYPE_BLOB = 4, COLUMN_TYPE_NULL = 5 }; class Statement : public boost::noncopyable { friend class Connection; private: StatementReference reference_; int CheckError(int err) const; void CheckOk(int err) const; struct sqlite3_stmt* GetStatement() const { return reference_.GetWrappedObject(); } public: Statement(Connection& database, const std::string& sql); Statement(Connection& database, const StatementId& id, const std::string& sql); Statement(Connection& database, const char* sql); Statement(Connection& database, const StatementId& id, const char* sql); bool Run(); bool Step(); // Resets the statement to its initial condition. This includes any current // result row, and also the bound variables if the |clear_bound_vars| is true. void Reset(bool clear_bound_vars = true); // Diagnostics -------------------------------------------------------------- std::string GetOriginalSQLStatement(); // Binding ------------------------------------------------------------------- // These all take a 0-based argument index void BindNull(int col); void BindBool(int col, bool val); void BindInt(int col, int val); void BindInt64(int col, int64_t val); void BindDouble(int col, double val); void BindCString(int col, const char* val); void BindString(int col, const std::string& val); //void BindString16(int col, const string16& value); void BindBlob(int col, const void* value, int value_len); // Retrieving ---------------------------------------------------------------- // Returns the number of output columns in the result. int ColumnCount() const; // Returns the type associated with the given column. // // Watch out: the type may be undefined if you've done something to cause a // "type conversion." This means requesting the value of a column of a type // where that type is not the native type. For safety, call ColumnType only // on a column before getting the value out in any way. ColumnType GetColumnType(int col) const; ColumnType GetDeclaredColumnType(int col) const; // These all take a 0-based argument index. bool ColumnBool(int col) const; int ColumnInt(int col) const; int64_t ColumnInt64(int col) const; double ColumnDouble(int col) const; std::string ColumnString(int col) const; //string16 ColumnString16(int col) const; // When reading a blob, you can get a raw pointer to the underlying data, // along with the length, or you can just ask us to copy the blob into a // vector. Danger! ColumnBlob may return NULL if there is no data! int ColumnByteLength(int col) const; const void* ColumnBlob(int col) const; bool ColumnBlobAsString(int col, std::string* blob); //bool ColumnBlobAsString16(int col, string16* val) const; bool ColumnBlobAsVector(int col, std::vector<char>* val) const; bool ColumnBlobAsVector(int col, std::vector<unsigned char>* val) const; }; } }