1 files changed, 15 insertions, 0 deletions
diff --git a/odb/transaction.hxx b/odb/transaction.hxx
index 0d4f518..e8488a4 100644
--- a/odb/transaction.hxx
+++ b/odb/transaction.hxx
@@ -49,6 +49,7 @@ namespace odb
     connection_type&
     connection ();
 
+  public:
     // Return true if there is a transaction in effect.
     //
     static bool
@@ -70,6 +71,20 @@ namespace odb
     static void
     reset_current ();
 
+    // SQL statement tracing.
+    //
+  public:
+    typedef odb::tracer tracer_type;
+
+    void
+    tracer (tracer_type&);
+
+    void
+    tracer (tracer_type*);
+
+    tracer_type*
+    tracer () const;
+
   public:
     transaction_impl&
     implementation ();