1 files changed, 62 insertions, 0 deletions
diff --git a/odb/odb/semantics/relational/primary-key.hxx b/odb/odb/semantics/relational/primary-key.hxx
new file mode 100644
index 0000000..114f682
--- /dev/null
+++ b/odb/odb/semantics/relational/primary-key.hxx
@@ -0,0 +1,62 @@
+// file      : odb/semantics/relational/primary-key.hxx
+// license   : GNU GPL v3; see accompanying LICENSE file
+
+#ifndef ODB_SEMANTICS_RELATIONAL_PRIMARY_KEY_HXX
+#define ODB_SEMANTICS_RELATIONAL_PRIMARY_KEY_HXX
+
+#include <map>
+
+#include <odb/semantics/relational/elements.hxx>
+#include <odb/semantics/relational/key.hxx>
+
+namespace semantics
+{
+  namespace relational
+  {
+    class primary_key: public key
+    {
+    public:
+      bool
+      auto_ () const {return auto__;}
+
+      // Extra information.
+      //
+    public:
+      typedef std::map<string, string> extra_map;
+
+      extra_map&
+      extra () {return extra_map_;}
+
+      extra_map const&
+      extra () const {return extra_map_;}
+
+    public:
+      primary_key (bool auto_)
+          : key (""),      // Primary key has the implicit empty id.
+            auto__ (auto_)
+      {
+      }
+
+      primary_key (primary_key const&, uscope&, graph&);
+      primary_key (xml::parser&, uscope&, graph&);
+
+      virtual primary_key&
+      clone (uscope&, graph&) const;
+
+      virtual string
+      kind () const
+      {
+        return "primary key";
+      }
+
+      virtual void
+      serialize (xml::serializer&) const;
+
+    private:
+      bool auto__;
+      extra_map extra_map_;
+    };
+  }
+}
+
+#endif // ODB_SEMANTICS_RELATIONAL_PRIMARY_KEY_HXX