Example usage.
diff --git a/src/main/include/log4cxx/filter/mapfilter.h b/src/main/include/log4cxx/filter/mapfilter.h
index 4f03616..768fbd6 100644
--- a/src/main/include/log4cxx/filter/mapfilter.h
+++ b/src/main/include/log4cxx/filter/mapfilter.h
@@ -30,7 +30,15 @@
{
/**
- * A Filter that operates on a Map.
+ * A Filter that operates on a Map and can be used like in the following example:
+ * <pre>
+ * <filter class="MapFilter">
+ * <param name="user.ip" value="127.0.0.1" />
+ * <param name="user.name" value="test2" />
+ * <param name="Operator" value="AND" />
+ * <param name="AcceptOnMatch" value="false" />
+ * </filter>
+ * </pre>
*/
class LOG4CXX_EXPORT MapFilter: public log4cxx::spi::Filter
{