--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/implab/messaging/Destination.js	Thu Jun 01 13:20:03 2017 +0300
@@ -0,0 +1,34 @@
+define([ "dojo/_base/declare", "./Listener" ],
+
+function(declare, Listener) {
+    return declare(null, {
+        _session : null,
+        _destination : null,
+        _listenerClass : null,
+
+        constructor : function(session, destination, options) {
+            if (!session)
+                throw new Error("A session is required");
+            if (!destination)
+                throw new Error("A destination is required");
+
+            this._session = session;
+            this._destination = destination;
+            if (options) {
+                if (options.listenerClass)
+                    this._listenerClass = options.listenerClass;
+            }
+        },
+
+        listen : function(callback) {
+            var factory = this._listenerClass || Listener;
+            var listener = new factory(this._session, this._destination, {
+                listener : callback
+            });
+            listener.start();
+
+            return listener;
+        }
+
+    });
+});