From 5f027bad06203709c4130deaf349e74d8254422e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 4 Apr 2016 16:42:20 +0200
Subject: Add _has_cache() custom session interface, use in OLV implementation

---
 odb/session.hxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/odb/session.hxx b/odb/session.hxx
index 377de81..f23e8a7 100644
--- a/odb/session.hxx
+++ b/odb/session.hxx
@@ -132,6 +132,9 @@ namespace odb
     // Static cache API as expected by the rest of ODB.
     //
   public:
+    static bool
+    _has_cache () {return has_current ();}
+
     // Position in the cache of the inserted element. The requirements
     // for this class template are: default and copy-constructible as
     // well as copy-assignable. The default constructor creates an
-- 
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