diff --git a/java_gen/templates/const_serializer.java b/java_gen/templates/const_serializer.java
index 5710f9c..12ff28a 100644
--- a/java_gen/templates/const_serializer.java
+++ b/java_gen/templates/const_serializer.java
@@ -33,10 +33,7 @@
 
 package ${package};
 
-import org.projectfloodlight.openflow.types.*;
-import org.jboss.netty.buffer.ChannelBuffer;
-import org.projectfloodlight.openflow.exceptions.OFParseError;
-import org.projectfloodlight.openflow.protocol.OFVersion;
+//:: include('_imports.java')
 import ${enum.package}.${enum.name};
 
 public class ${class_name} {
@@ -60,6 +57,10 @@
         ${wire_type.write_op(version=version, name="toWireValue(e)")};
     }
 
+    public static void putTo(${enum.name} e, PrimitiveSink sink) {
+        ${wire_type.funnel_op(version=version, name="toWireValue(e)")};
+    }
+
     public static ${enum.name} ofWireValue(${int_wire_type} val) {
         switch(val) {
         //:: for entry, _ in entries:
@@ -71,6 +72,7 @@
         }
     }
 
+
     public static ${int_wire_type} toWireValue(${enum.name} e) {
         switch(e) {
         //:: for entry, _ in entries: