diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/web/GetAllFlowsResource.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/web/GetAllFlowsResource.java
index 61eaf27..bac5618 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/web/GetAllFlowsResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/web/GetAllFlowsResource.java
@@ -10,9 +10,19 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+/**
+ * @short Flow Manager REST API implementation: Get all Flow state.
+ *
+ *   GET /wm/flow/getall/json"
+ */
 public class GetAllFlowsResource extends ServerResource {
     protected static Logger log = LoggerFactory.getLogger(GetAllFlowsResource.class);
 
+    /**
+     * Implement the API.
+     *
+     * @return the collection of Flow states if any found, otherwise null.
+     */
     @Get("json")
     public ArrayList<FlowPath> retrieve() {
 	ArrayList<FlowPath> result = null;