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+// file      : odb/relational/mysql/context.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : GNU GPL v3; see accompanying LICENSE file
+
+#ifndef ODB_RELATIONAL_MYSQL_CONTEXT_HXX
+#define ODB_RELATIONAL_MYSQL_CONTEXT_HXX
+
+#include <odb/relational/context.hxx>
+
+namespace relational
+{
+  namespace mysql
+  {
+    struct sql_type
+    {
+      // Keep the order in each block of types.
+      //
+      enum core_type
+      {
+        // Integral types.
+        //
+        TINYINT,
+        SMALLINT,
+        MEDIUMINT,
+        INT,
+        BIGINT,
+
+        // Float types.
+        //
+        FLOAT,
+        DOUBLE,
+        DECIMAL,
+
+        // Data-time types.
+        //
+        DATE,
+        TIME,
+        DATETIME,
+        TIMESTAMP,
+        YEAR,
+
+        // String and binary types.
+        //
+        CHAR,
+        BINARY,
+        VARCHAR,
+        VARBINARY,
+        TINYTEXT,
+        TINYBLOB,
+        TEXT,
+        BLOB,
+        MEDIUMTEXT,
+        MEDIUMBLOB,
+        LONGTEXT,
+        LONGBLOB,
+
+        // Other types.
+        //
+        BIT,
+        ENUM,
+        SET,
+
+        // Invalid type.
+        //
+        invalid
+      };
+
+      sql_type () : type (invalid), unsign (false), range (false) {}
+
+      core_type type;
+      bool unsign;
+      bool range;
+      unsigned int range_value; // MySQL max value is 2^32 - 1 (LONGBLOG/TEXT).
+    };
+
+    class context: public virtual relational::context
+    {
+    public:
+      sql_type const&
+      db_type (semantics::data_member&, string const& key_prefix = string ());
+
+    protected:
+      virtual bool
+      grow_impl (semantics::class_&);
+
+      virtual bool
+      grow_impl (semantics::data_member&);
+
+      virtual bool
+      grow_impl (semantics::data_member&, semantics::type&, string const&);
+
+    protected:
+      virtual string
+      quote_id_impl (string const&) const;
+
+    private:
+      struct data: base_context::data
+      {
+        data (std::ostream& os): base_context::data (os) {}
+
+        virtual string
+        column_type_impl (semantics::type&,
+                          string const& type,
+                          semantics::context&,
+                          column_type_flags) const;
+      };
+
+    private:
+      data* data_;
+
+    public:
+      static context&
+      current ()
+      {
+        return dynamic_cast<context&> (base_context::current ());
+      }
+
+      context (std::ostream&, semantics::unit&, options_type const&);
+
+    protected:
+      context ();
+    };
+  }
+}
+
+#endif // ODB_RELATIONAL_MYSQL_CONTEXT_HXX