1 files changed, 42 insertions, 0 deletions
diff --git a/odb/semantics/relational/deferrable.hxx b/odb/semantics/relational/deferrable.hxx
new file mode 100644
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--- /dev/null
+++ b/odb/semantics/relational/deferrable.hxx
@@ -0,0 +1,42 @@
+// file      : odb/semantics/relational/deferrable.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : GNU GPL v3; see accompanying LICENSE file
+
+#ifndef ODB_SEMANTICS_RELATIONAL_DEFERRABLE_HXX
+#define ODB_SEMANTICS_RELATIONAL_DEFERRABLE_HXX
+
+#include <string>
+#include <iosfwd>
+
+namespace semantics
+{
+  namespace relational
+  {
+    struct deferrable
+    {
+      enum value
+      {
+        not_deferrable,
+        immediate,
+        deferred
+      };
+
+      deferrable (value v = value (0)) : v_ (v) {}
+      operator value () const {return v_;}
+
+      std::string
+      string () const;
+
+    private:
+      value v_;
+    };
+
+    std::ostream&
+    operator<< (std::ostream&, deferrable const&);
+
+    std::istream&
+    operator>> (std::istream&, deferrable&);
+  }
+}
+
+#endif // ODB_SEMANTICS_RELATIONAL_DEFERRABLE_HXX