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+// file : odb/oracle/transaction.cxx
+// author : Constantin Michael <constantin@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license : ODB NCUEL; see accompanying LICENSE file
+
+#include <odb/oracle/transaction.hxx>
+
+namespace odb
+{
+ namespace oracle
+ {
+ transaction& transaction::
+ current ()
+ {
+ // While the impl type can be of the concrete type, the transaction
+ // object can be created as either odb:: or odb::oracle:: type. To
+ // work around that we are going to hard-cast one to the other
+ // relying on the fact that they have the same representation and
+ // no virtual functions. The former is checked in the tests.
+ //
+ odb::transaction& b (odb::transaction::current ());
+ dynamic_cast<transaction_impl&> (b.implementation ());
+ return reinterpret_cast<transaction&> (b);
+ }
+ }
+}