1 files changed, 1 insertions, 0 deletions

diff --git a/src/cachestore.h b/src/cachestore.h
index 437b3d3..b75864b 100644
--- a/src/cachestore.h
+++ b/src/cachestore.h
@@ -29,6 +29,7 @@ namespace Bu
                 virtual void destroy( obtype *pObj, const keytype &key )=0;
                 virtual bool has( const keytype &key )=0;
                 virtual Bu::List<keytype> getKeys() { return Bu::List<keytype>(); }
+                virtual int getSize() { return -1; }
 
         private:
         };