Github user kl0u commented on a diff in the pull request:
https://github.com/apache/flink/pull/5230#discussion_r160904948
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/BroadcastConnectedStream.java
---
@@ -0,0 +1,216 @@
+/*
+ * 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.streaming.api.datastream;
+
+import org.apache.flink.annotation.Internal;
+import org.apache.flink.annotation.PublicEvolving;
+import org.apache.flink.api.common.state.MapStateDescriptor;
+import org.apache.flink.api.common.typeinfo.TypeInformation;
+import org.apache.flink.api.java.Utils;
+import org.apache.flink.api.java.typeutils.TypeExtractor;
+import
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import
org.apache.flink.streaming.api.functions.co.BroadcastProcessFunction;
+import
org.apache.flink.streaming.api.functions.co.KeyedBroadcastProcessFunction;
+import org.apache.flink.streaming.api.operators.TwoInputStreamOperator;
+import
org.apache.flink.streaming.api.operators.co.CoBroadcastWithKeyedOperator;
+import
org.apache.flink.streaming.api.operators.co.CoBroadcastWithNonKeyedOperator;
+import
org.apache.flink.streaming.api.transformations.TwoInputTransformation;
+import org.apache.flink.util.Preconditions;
+
+import static java.util.Objects.requireNonNull;
+
+/**
+ * A BroadcastConnectedStream represents the result of connecting a stream
with
--- End diff --
You mean simplify the Javadoc or the order of the input types?
---