1 files changed, 201 insertions, 0 deletions
diff --git a/odb/odb/semantics/relational/column.cxx b/odb/odb/semantics/relational/column.cxx
new file mode 100644
index 0000000..9d4d6e5
--- /dev/null
+++ b/odb/odb/semantics/relational/column.cxx
@@ -0,0 +1,201 @@
+// file      : odb/semantics/relational/column.cxx
+// license   : GNU GPL v3; see accompanying LICENSE file
+
+#include <libcutl/compiler/type-info.hxx>
+
+#include <odb/semantics/relational/column.hxx>
+
+namespace semantics
+{
+  namespace relational
+  {
+    // column
+    //
+    column::
+    column (column const& c, uscope&, graph& g)
+        : unameable (c, g),
+          type_ (c.type_),
+          null_ (c.null_),
+          default__ (c.default__),
+          options_ (c.options_)
+    {
+    }
+
+    column::
+    column (xml::parser& p, uscope&, graph& g)
+        : unameable (p, g),
+          type_ (p.attribute ("type", string ())),
+          null_ (p.attribute<bool> ("null")),
+          default__ (p.attribute ("default", string ())),
+          options_ (p.attribute ("options", string ()))
+    {
+      p.content (xml::content::empty);
+    }
+
+    column& column::
+    clone (uscope& s, graph& g) const
+    {
+      return g.new_node<column> (*this, s, g);
+    }
+
+    void column::
+    serialize (xml::serializer& s) const
+    {
+      s.start_element (xmlns, "column");
+      serialize_attributes (s);
+      s.end_element ();
+    }
+
+    void column::
+    serialize_attributes (xml::serializer& s) const
+    {
+      unameable::serialize_attributes (s);
+
+      s.attribute ("type", type ());
+      s.attribute ("null", null ()); // Output even if false.
+
+      if (!default_ ().empty ())
+        s.attribute ("default", default_ ());
+
+      if (!options ().empty ())
+        s.attribute ("options", options ());
+    }
+
+    // add_column
+    //
+    add_column& add_column::
+    clone (uscope& s, graph& g) const
+    {
+      return g.new_node<add_column> (*this, s, g);
+    }
+
+    void add_column::
+    serialize (xml::serializer& s) const
+    {
+      s.start_element (xmlns, "add-column");
+      column::serialize_attributes (s);
+      s.end_element ();
+    }
+
+    // drop_column
+    //
+    drop_column::
+    drop_column (xml::parser& p, uscope&, graph& g)
+        : unameable (p, g)
+    {
+      p.content (xml::content::empty);
+    }
+
+    drop_column& drop_column::
+    clone (uscope& s, graph& g) const
+    {
+      return g.new_node<drop_column> (*this, s, g);
+    }
+
+    void drop_column::
+    serialize (xml::serializer& s) const
+    {
+      s.start_element (xmlns, "drop-column");
+      unameable::serialize_attributes (s);
+      s.end_element ();
+    }
+
+    // alter_column
+    //
+    alter_column::
+    alter_column (alter_column const& ac, uscope& s, graph& g)
+        : column (ac, s, g),
+          alters_ (0),
+          null_altered_ (ac.null_altered_)
+    {
+      column* b (s.lookup<column, drop_column> (ac.name ()));
+      assert (b != 0);
+      g.new_edge<alters> (*this, *b);
+    }
+
+    alter_column::
+    alter_column (xml::parser& p, uscope& s, graph& g)
+        : column (p, s, g),
+          alters_ (0),
+          null_altered_ (p.attribute_present ("null"))
+    {
+      name_type n (p.attribute<name_type> ("name"));
+      column* b (s.lookup<column, drop_column> (n));
+      assert (b != 0);
+      g.new_edge<alters> (*this, *b);
+    }
+
+    alter_column& alter_column::
+    clone (uscope& s, graph& g) const
+    {
+      return g.new_node<alter_column> (*this, s, g);
+    }
+
+    void alter_column::
+    serialize (xml::serializer& s) const
+    {
+      s.start_element (xmlns, "alter-column");
+
+      // Here we override the standard column logic.
+      //
+      unameable::serialize_attributes (s);
+
+      if (null_altered_)
+        s.attribute ("null", null_);
+
+      s.end_element ();
+    }
+
+    // type info
+    //
+    namespace
+    {
+      struct init
+      {
+        init ()
+        {
+          unameable::parser_map& m (unameable::parser_map_);
+
+          m["column"] = &unameable::parser_impl<column>;
+          m["add-column"] = &unameable::parser_impl<add_column>;
+          m["drop-column"] = &unameable::parser_impl<drop_column>;
+          m["alter-column"] = &unameable::parser_impl<alter_column>;
+
+          using compiler::type_info;
+
+          // column
+          //
+          {
+            type_info ti (typeid (column));
+            ti.add_base (typeid (unameable));
+            insert (ti);
+          }
+
+          // add_column
+          //
+          {
+            type_info ti (typeid (add_column));
+            ti.add_base (typeid (column));
+            insert (ti);
+          }
+
+          // drop_column
+          //
+          {
+            type_info ti (typeid (drop_column));
+            ti.add_base (typeid (unameable));
+            insert (ti);
+          }
+
+          // alter_column
+          //
+          {
+            type_info ti (typeid (alter_column));
+            ti.add_base (typeid (column));
+            insert (ti);
+          }
+        }
+      } init_;
+    }
+  }
+}