From 00e50be811faf346d8fa26fac30ffd597a817c13 Mon Sep 17 00:00:00 2001
From: vaughn <vaughn@apache.org>
Date: Mon, 19 Dec 2022 17:11:17 +0800
Subject: [PATCH] chore: don't support null properties

---
 .../org/apache/hugegraph/structure/HugeFeatures.java   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeFeatures.java b/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeFeatures.java
index 85517c9d61..5fddd23039 100644
--- a/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeFeatures.java
+++ b/hugegraph-core/src/main/java/org/apache/hugegraph/structure/HugeFeatures.java
@@ -271,6 +271,11 @@ public VertexProperty.Cardinality getCardinality(final String key) {
             return VertexProperty.Cardinality.single;
         }
 
+        @Override
+        public boolean supportsNullPropertyValues() {
+            return false;
+        }
+
         public boolean supportsDefaultLabel() {
             return true;
         }
@@ -291,6 +296,11 @@ public class HugeEdgeFeatures extends HugeElementFeatures
         public EdgePropertyFeatures properties() {
             return this.edgePropertyFeatures;
         }
+
+        @Override
+        public boolean supportsNullPropertyValues() {
+            return false;
+        }
     }
 
     public class HugeDataTypeFeatures implements DataTypeFeatures {