diff --git a/core/api/src/main/java/org/onlab/onos/store/service/ReadResult.java b/core/api/src/main/java/org/onlab/onos/store/service/ReadResult.java
index 6d28fc2..49e9665 100644
--- a/core/api/src/main/java/org/onlab/onos/store/service/ReadResult.java
+++ b/core/api/src/main/java/org/onlab/onos/store/service/ReadResult.java
@@ -35,6 +35,15 @@
     }
 
     /**
+     * Returns true if database table contained value for the key.
+     *
+     * @return true if database table contained value for the key
+     */
+    public boolean valueExists() {
+        return value != null;
+    }
+
+    /**
      * Returns value associated with the key.
      * @return non-null value if the table contains one, null otherwise.
      */