added Visitable

darcs-hash:20060211090639-5007d-d813938805ed4e99f02eda4b1d57f19e7a1dbd5f.gz

diff --git a/src/edu/berkeley/sbp/util/Visitable.java b/src/edu/berkeley/sbp/util/Visitable.java
new file mode 100644 (file)
index 0000000..f49e3d9
--- /dev/null
+++ b/src/edu/berkeley/sbp/util/Visitable.java
@@ -0,0 +1,8 @@
+package edu.berkeley.sbp.util;
+import java.util.*;
+
+public interface Visitable<V> {
+
+    public <B,C> void visit(Invokable<V,B,C> ivbc, B b, C c);
+
+}