diff --git a/java_gen/pre-written/src/main/java/org/openflow/types/TransportPort.java b/java_gen/pre-written/src/main/java/org/openflow/types/TransportPort.java
index 82dab41..ed6a4fe 100644
--- a/java_gen/pre-written/src/main/java/org/openflow/types/TransportPort.java
+++ b/java_gen/pre-written/src/main/java/org/openflow/types/TransportPort.java
@@ -14,6 +14,9 @@
     static final int MAX_PORT = 0xFFFF;
     static final int MIN_PORT = 0;
     
+    public static final TransportPort FULL_MASK = TransportPort.of(0xFFFFFFFF);
+    public static final TransportPort NO_MASK = TransportPort.of(0x0);
+
     private final int port;
     
     private TransportPort(int port) {