[ONOS-3902, ONOS-3903, ONOS-3904] string type, integer type derrived type
Change-Id: I8279e93fcb7dfb82491cc09057c9d75165add68d
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAppErrorInfo.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAppErrorInfo.java
new file mode 100644
index 0000000..9b3ba3f
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAppErrorInfo.java
@@ -0,0 +1,47 @@
+/*Copyright 2016.year 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.yangutils.datamodel;
+
+/**
+ * Abstraction of error message and application info processing.
+ */
+public interface YangAppErrorInfo {
+ /**
+ * Get the application's error message for data error.
+ *
+ * @return application's error message for data error.
+ */
+ String getGetErrorMessage();
+
+ /**
+ * Set the application's error message for data error.
+ *
+ * @param errorMessage application's error message for data error.
+ */
+ void setErrorMessage(String errorMessage);
+
+ /**
+ * Get the application's error tag for data error.
+ *
+ * @return application's error tag for data error.
+ */
+ String getGetErrorAppTag();
+
+ /**
+ * Set the application's error tag for data error.
+ *
+ * @param errorMessage application's error tag for data error.
+ */
+ void setErrorAppTag(String errorMessage);
+}