diff Core/SQLite/FunctionContext.h @ 0:3959d33612cc

initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 19 Jul 2012 14:32:22 +0200
parents
children db4d996ea264
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/SQLite/FunctionContext.h	Thu Jul 19 14:32:22 2012 +0200
@@ -0,0 +1,72 @@
+/**
+ * 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 <boost/noncopyable.hpp>
+
+#include "Statement.h"
+
+struct sqlite3_context;
+struct Mem;  // This corresponds to the opaque type "sqlite3_value"
+ 
+namespace Palantir
+{
+  namespace SQLite
+  {
+    class FunctionContext : public boost::noncopyable
+    {
+      friend class Connection;
+
+    private:
+      struct sqlite3_context* context_;
+      unsigned int argc_;
+      struct ::Mem** argv_;
+
+      void CheckIndex(unsigned int index) const;
+
+    public:
+      FunctionContext(struct sqlite3_context* context,
+                      int argc,
+                      struct ::Mem** argv);
+
+      ColumnType GetColumnType(unsigned int index) const;
+ 
+      unsigned int GetParameterCount() const
+      {
+        return argc_;
+      }
+
+      int GetIntValue(unsigned int index) const;
+
+      double GetDoubleValue(unsigned int index) const;
+
+      std::string GetStringValue(unsigned int index) const;
+  
+      void SetNullResult();
+
+      void SetIntResult(int value);
+
+      void SetDoubleResult(double value);
+
+      void SetStringResult(const std::string& str);
+    };
+  }
+}