Import Floodlight v0.90
diff --git a/src/ext/floodlight/src/main/java/net/floodlightcontroller/storage/IStorageSourceListener.java b/src/ext/floodlight/src/main/java/net/floodlightcontroller/storage/IStorageSourceListener.java
new file mode 100644
index 0000000..ea3764d
--- /dev/null
+++ b/src/ext/floodlight/src/main/java/net/floodlightcontroller/storage/IStorageSourceListener.java
@@ -0,0 +1,39 @@
+/**
+*    Copyright 2011, Big Switch Networks, Inc. 
+*    Originally created by David Erickson, Stanford University
+* 
+*    Licensed under the Apache License, Version 2.0 (the "License"); you may
+*    not use this file except in compliance with the License. You may obtain
+*    a copy of the License at
+*
+*         http://www.apache.org/licenses/LICENSE-2.0
+*
+*    Unless required by applicable law or agreed to in writing, software
+*    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+*    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+*    License for the specific language governing permissions and limitations
+*    under the License.
+**/
+
+package net.floodlightcontroller.storage;
+
+import java.util.Set;
+
+public interface IStorageSourceListener {
+
+    /**
+     * Called when rows are inserted or updated in the table.
+     * 
+     * @param tableName The table where the rows were inserted
+     * @param rowKeys The keys of the rows that were inserted
+     */
+    public void rowsModified(String tableName, Set<Object> rowKeys);
+    
+    /**
+     * Called when a new row is deleted from the table.
+     * 
+     * @param tableName The table where the rows were deleted
+     * @param rowKeys The keys of the rows that were deleted
+     */
+    public void rowsDeleted(String tableName, Set<Object> rowKeys);
+}