diff --git a/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/BundleIdGenerator.java b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/BundleIdGenerator.java
new file mode 100644
index 0000000..2cb3583
--- /dev/null
+++ b/java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/BundleIdGenerator.java
@@ -0,0 +1,7 @@
+package org.projectfloodlight.openflow.protocol;
+
+import org.projectfloodlight.openflow.types.BundleId;
+
+public interface BundleIdGenerator {
+    BundleId nextBundleId();
+}