diff --git a/apps/tenbi/utils/src/main/java/org/onosproject/teyang/api/OperationType.java b/apps/tenbi/utils/src/main/java/org/onosproject/teyang/api/OperationType.java
new file mode 100644
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+++ b/apps/tenbi/utils/src/main/java/org/onosproject/teyang/api/OperationType.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2016 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.onosproject.teyang.api;
+
+/**
+ * The operation type.
+ */
+public enum OperationType {
+
+    /**
+     * The configuration data identified by the element
+     * containing this attribute is merged with the configuration
+     * at the corresponding level in the configuration datastore.
+     */
+    MERGE,
+
+    /**
+     * The configuration data identified by the element
+     * containing this attribute replaces any related configuration
+     * in the configuration datastore. If no such configuration
+     * data exists in the configuration datastore, it is created.
+     */
+    REPLACE,
+
+    /**
+     * The configuration data identified by the element
+     * containing this attribute is added to the configuration if
+     * and only if the configuration data does not already exist in
+     * the configuration datastore.  If the configuration data
+     * exists, an error is returned.
+     */
+    CREATE,
+
+    /**
+     * The configuration data identified by the element
+     * containing this attribute is deleted from the configuration
+     * if and only if the configuration data currently exists in
+     * the configuration datastore.  If the configuration data does
+     * not exist, an error is returned".
+     */
+    DELETE,
+
+    /**
+     * The configuration data identified by the element
+     * containing this attribute is deleted from the configuration
+     * if the configuration data currently exists in the
+     * configuration datastore.  If the configuration data does not
+     * exist, the "remove" operation is silently ignored by the
+     * server.
+     */
+    REMOVE,
+
+    /**
+     * The node is used as a containment node to reach the child node,
+     * There is no change in the data store for the values of this node in the
+     * edit request.
+     */
+    NONE,
+
+//    /**
+//     * The YANG based request is to edit a config node / subtree in the data
+//     * store.
+//     */
+//    EDIT_CONFIG,
+//
+//    /**
+//     * The YANG based request is to query a config node / subtree in the data
+//     * store.
+//     */
+//    QUERY_CONFIG,
+//
+    /**
+     * The YANG based request is to query a node / subtree in the data store.
+     */
+    QUERY,
+
+//    /**
+//     * The YANG based request is to execute an RPC defined in YANG.
+//     */
+//    RPC,
+//
+//    /**
+//     * The YANG based request is to execute an RPC defined in YANG.
+//     */
+//    NOTIFICATION
+}