java_gen: work in progress commit of java generator
diff --git a/java_gen/pre-written/src/main/java/org/openflow/protocol/match/MatchBuilder.java b/java_gen/pre-written/src/main/java/org/openflow/protocol/match/MatchBuilder.java
new file mode 100644
index 0000000..7a5e57c
--- /dev/null
+++ b/java_gen/pre-written/src/main/java/org/openflow/protocol/match/MatchBuilder.java
@@ -0,0 +1,9 @@
+package org.openflow.protocol.match;
+
+public interface MatchBuilder extends Match {
+    public <F> MatchBuilder set(MatchField<F, ?> match, F value);
+
+    public <M> void setMasked(MatchField<?, M> match, M value);
+
+    public Match getMatch();
+}