diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseUpdateEventListener.java b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseUpdateEventListener.java
new file mode 100644
index 0000000..f7b147f
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DatabaseUpdateEventListener.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * 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 org.onlab.onos.store.service.impl;
+
+public interface DatabaseUpdateEventListener {
+    
+    /**
+     * 
+     * @param event
+     */
+    public void tableModified(TableModificationEvent event);
+    
+    /**
+     * 
+     * @param tableName
+     * @param expirationTimeMillis
+     */
+    public void tableCreated(String tableName, int expirationTimeMillis);
+    
+    /**
+     * 
+     * @param tableName
+     */
+    public void tableDeleted(String tableName);
+
+}
\ No newline at end of file