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1 /**
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2 * Palantir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #pragma once
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22
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23 #include <boost/noncopyable.hpp>
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24
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25 #include "Statement.h"
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26
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27 struct sqlite3_context;
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28 struct Mem; // This corresponds to the opaque type "sqlite3_value"
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29
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30 namespace Palantir
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31 {
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32 namespace SQLite
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33 {
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34 class FunctionContext : public boost::noncopyable
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35 {
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36 friend class Connection;
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37
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38 private:
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39 struct sqlite3_context* context_;
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40 unsigned int argc_;
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41 struct ::Mem** argv_;
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42
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43 void CheckIndex(unsigned int index) const;
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44
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45 public:
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46 FunctionContext(struct sqlite3_context* context,
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47 int argc,
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48 struct ::Mem** argv);
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49
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50 ColumnType GetColumnType(unsigned int index) const;
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51
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52 unsigned int GetParameterCount() const
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53 {
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54 return argc_;
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55 }
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56
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57 int GetIntValue(unsigned int index) const;
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58
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59 double GetDoubleValue(unsigned int index) const;
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60
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61 std::string GetStringValue(unsigned int index) const;
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62
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63 void SetNullResult();
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64
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65 void SetIntResult(int value);
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66
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67 void SetDoubleResult(double value);
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68
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69 void SetStringResult(const std::string& str);
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70 };
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71 }
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72 }
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