X-Git-Url: http://jsfdemo.indexdata.com/?a=blobdiff_plain;f=src%2Ffilter.hpp;h=45846f86fa79c21e55fe2f6b86ef4f637f9f2a81;hb=ec40d94aeb48a31ebe0ac8c9b9457f28a2d54fcc;hp=73bf2ca1aa4a6152d8a53a0a8c8aaa4a19aef295;hpb=b84218609efb976d5b5270bd9e95a3c421af3a13;p=metaproxy-moved-to-github.git

diff --git a/src/filter.hpp b/src/filter.hpp
index 73bf2ca..45846f8 100644
--- a/src/filter.hpp
+++ b/src/filter.hpp
@@ -1,3 +1,8 @@
+/* $Id: filter.hpp,v 1.5 2005-10-16 16:05:44 adam Exp $
+   Copyright (c) 2005, Index Data.
+
+%LICENSE%
+ */
 
 #ifndef FILTER_HPP
 #define FILTER_HPP
@@ -14,9 +19,9 @@ namespace yp2 {
             virtual ~Base(){};
             
             ///sends Package off to next Filter, returns altered Package
-            virtual  void process(Package & package) const {
-            };
-            virtual  void configure(){};
+            virtual void process(Package & package) const = 0;
+
+            virtual void configure(){};
             
             /// get function - right val in assignment
             std::string name() const {
@@ -54,6 +59,7 @@ namespace yp2 {
  * Local variables:
  * c-basic-offset: 4
  * indent-tabs-mode: nil
+ * c-file-style: "stroustrup"
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab
  */