diff --git a/src/helma/objectmodel/db/IReplicationListener.java b/src/helma/objectmodel/db/IReplicationListener.java
new file mode 100644
index 00000000..18eeff59
--- /dev/null
+++ b/src/helma/objectmodel/db/IReplicationListener.java
@@ -0,0 +1,21 @@
+// IReplicationListener.java
+// Copyright (c) Hannes Wallnöfer 2002
+
+package helma.objectmodel.db;
+
+import java.rmi.*;
+import java.util.Vector;
+
+/**
+ * RMI interface for an application. Currently only execute is used and supported.
+ */
+
+public interface IReplicationListener extends Remote {
+
+    /**
+     * Update HopObjects in this application's cache. This is used to replicate
+     * application caches in a distributed app environment
+     */
+    public void replicateCache (Vector add, Vector delete) throws RemoteException;
+
+}