diff --git a/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-common/src/main/java/com/webank/wedatasphere/dss/workflow/common/entity/DSSFlowRelation.java b/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-common/src/main/java/com/webank/wedatasphere/dss/workflow/common/entity/DSSFlowRelation.java
index 2d5a35ac52..8cce61e60c 100644
--- a/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-common/src/main/java/com/webank/wedatasphere/dss/workflow/common/entity/DSSFlowRelation.java
+++ b/dss-orchestrator/orchestrators/dss-workflow/dss-workflow-common/src/main/java/com/webank/wedatasphere/dss/workflow/common/entity/DSSFlowRelation.java
@@ -21,6 +21,14 @@ public class DSSFlowRelation {
     private Long flowID;
     private Long parentFlowID;
 
+    public DSSFlowRelation() {
+    }
+
+    public DSSFlowRelation(Long flowID, Long parentFlowID) {
+        this.flowID = flowID;
+        this.parentFlowID = parentFlowID;
+    }
+
     public Long getId() {
         return id;
     }