From 25feb0393f8c8a1e9e0e0edf369b10b318a60599 Mon Sep 17 00:00:00 2001
From: Constantin Michael <constantin@codesynthesis.com>
Date: Thu, 27 Oct 2011 15:54:35 +0200
Subject: Implement query image change callback machinery

---
 odb/relational/oracle/header.cxx | 13 +++++++++++++
 odb/relational/oracle/source.cxx |  8 ++++++++
 2 files changed, 21 insertions(+)

(limited to 'odb/relational/oracle')

diff --git a/odb/relational/oracle/header.cxx b/odb/relational/oracle/header.cxx
index 1e9e850..acbefef 100644
--- a/odb/relational/oracle/header.cxx
+++ b/odb/relational/oracle/header.cxx
@@ -16,6 +16,19 @@ namespace relational
     {
       namespace relational = relational::header;
 
+      struct image_type: relational::image_type, context
+      {
+        image_type (base const& x): base (x) {};
+
+        virtual void
+        image_extra (type& c)
+        {
+          if (options.generate_query () && !composite (c))
+            os << "oracle::change_callback change_callback;";
+        }
+      };
+      entry<image_type> image_type_;
+
       struct image_member: relational::image_member, member_base
       {
         image_member (base const& x)
diff --git a/odb/relational/oracle/source.cxx b/odb/relational/oracle/source.cxx
index a22c235..3383b6f 100644
--- a/odb/relational/oracle/source.cxx
+++ b/odb/relational/oracle/source.cxx
@@ -866,6 +866,14 @@ namespace relational
         }
 
         virtual void
+        init_image_pre (type& c)
+        {
+          if (options.generate_query () && !composite (c))
+            os << "if (i.change_callback.callback != 0)"
+               << "(i.change_callback.callback) (i.change_callback.context);";
+        }
+
+        virtual void
         init_value_extra ()
         {
           os << "sts.find_statement ().stream_result ();";
-- 
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