Generate database schema from database model instead of C++ model

We now first create the so-called database model from C++ model and
then use that to generate the database schema. The new approach also
adds more general support for primary/foreign keys, including multi-
column keys. Finally, for MySQL we now generate out-of-line foreign
key definitions. Because MySQL does not support deferred constraints
checking, deferred foreign keys are written commented out, for
documentation.

1 files changed, 56 insertions, 0 deletions

diff --git a/odb/semantics/relational/table.hxx b/odb/semantics/relational/table.hxx
new file mode 100644
index 0000000..d2f8649
--- /dev/null
+++ b/odb/semantics/relational/table.hxx
@@ -0,0 +1,56 @@
+// file      : odb/semantics/relational/table.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_SEMANTICS_RELATIONAL_TABLE_HXX
+#define ODB_SEMANTICS_RELATIONAL_TABLE_HXX
+
+#include <odb/semantics/relational/elements.hxx>
+
+namespace semantics
+{
+  namespace relational
+  {
+    class table: public nameable, public scope
+    {
+    protected:
+      table (string const& id)
+          : nameable (id)
+      {
+      }
+    };
+
+    class object_table: public table
+    {
+    public:
+      object_table (string const& id)
+          : table (id)
+      {
+      }
+
+      virtual string
+      kind () const
+      {
+        return "object table";
+      }
+    };
+
+    class container_table: public table
+    {
+    public:
+      container_table (string const& id)
+          : table (id)
+      {
+      }
+
+      virtual string
+      kind () const
+      {
+        return "container table";
+      }
+    };
+  }
+}
+
+#endif // ODB_SEMANTICS_RELATIONAL_TABLE_HXX