From bcf5fce175953bec0fd2725968828850a74d8539 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 7 Nov 2011 15:00:06 +0200
Subject: Add support for SQL statement tracing

---
 odb/database.hxx | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

(limited to 'odb/database.hxx')

diff --git a/odb/database.hxx b/odb/database.hxx
index c7816f6..e9c44f2 100644
--- a/odb/database.hxx
+++ b/odb/database.hxx
@@ -205,9 +205,27 @@ namespace odb
     connection_ptr
     connection ();
 
+    // SQL statement tracing.
+    //
+  public:
+    typedef odb::tracer tracer_type;
+
+    void
+    tracer (tracer_type&);
+
+    void
+    tracer (tracer_type*);
+
+    tracer_type*
+    tracer () const;
+
   protected:
     database ();
 
+  private:
+    database (const database&);
+    database& operator= (const database&);
+
   protected:
     typedef odb::connection connection_type;
 
@@ -230,9 +248,8 @@ namespace odb
     template <typename T, class_kind kind>
     struct query_;
 
-  private:
-    database (const database&);
-    database& operator= (const database&);
+  protected:
+    tracer_type* tracer_;
   };
 }
 
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