add Interet class for flexibility if we need selectors in the future
diff --git a/include/ccnx-wrapper.h b/include/ccnx-wrapper.h
index 6ee5749..8d24b19 100644
--- a/include/ccnx-wrapper.h
+++ b/include/ccnx-wrapper.h
@@ -14,6 +14,7 @@
 #include <boost/thread/thread.hpp>
 
 #include "ccnx-common.h"
+#include "ccnx-interest.h"
 #include "ccnx-closure.h"
 
 using namespace std;
@@ -37,7 +38,7 @@
   clearInterestFilter (const string &prefix);
 
   virtual int 
-  sendInterest (const string &strInterest, Closure *closure);
+  sendInterest (const Interest &interest, Closure *closure);
 
   virtual int 
   publishData (const string &name, const unsigned char *buf, size_t len, int freshness);