Github user GJL commented on a diff in the pull request:
https://github.com/apache/flink/pull/5451#discussion_r169687850
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/rest/handler/async/AsynchronousOperationResult.java
---
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.apache.flink.runtime.rest.handler.async;
+
+import
org.apache.flink.runtime.rest.messages.queue.AsynchronouslyCreatedResource;
+import org.apache.flink.runtime.rest.messages.queue.QueueStatus;
+import org.apache.flink.util.Preconditions;
+
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
+
+import javax.annotation.Nullable;
+
+/**
+ * Result of an asynchronous operation.
+ *
+ * @param <V> type of the result value
+ */
+public class AsynchronousOperationResult<V> implements
AsynchronouslyCreatedResource<V> {
+
+ private static final String FIELD_NAME_STATUS = "status";
+
+ private static final String FIELD_NAME_OPERATION = "operation";
+
+ @JsonProperty(FIELD_NAME_STATUS)
+ private final QueueStatus queueStatus;
+
+ @JsonProperty(FIELD_NAME_OPERATION)
+ @Nullable
+ private final V value;
+
+ @JsonCreator
+ private AsynchronousOperationResult(
+ @JsonProperty(FIELD_NAME_STATUS) QueueStatus queueStatus,
--- End diff --
nit: indentation
---
