Namespace management for static multi-database support

Now in libodb the odb::core namespace is split into odb::common (database-
independent stuff) and odb::core proper, which imports odb::common. Each
database runtime now defines odb::<db>::core namespace which also imports
odb::common and adds the database-specific bits. The overall idea is that
one can do using namespace odb::<db>::core just like for odb::core.

1 files changed, 16 insertions, 0 deletions

diff --git a/odb/oracle/forward.hxx b/odb/oracle/forward.hxx
index 24dbf44..e6b73e1 100644
--- a/odb/oracle/forward.hxx
+++ b/odb/oracle/forward.hxx
@@ -13,6 +13,13 @@ namespace odb
 {
   namespace oracle
   {
+    namespace core
+    {
+      using namespace odb::common;
+    }
+
+    //
+    //
     class database;
     class connection;
     typedef details::shared_ptr<connection> connection_ptr;
@@ -21,6 +28,15 @@ namespace odb
     class transaction;
     class tracer;
 
+    namespace core
+    {
+      using oracle::database;
+      using oracle::connection;
+      using oracle::connection_ptr;
+      using oracle::transaction;
+      using oracle::statement;
+    }
+
     // Implementation details.
     //
     enum statement_kind