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https://issues.apache.org/jira/browse/FLINK-3551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15836691#comment-15836691
]
ASF GitHub Bot commented on FLINK-3551:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2761#discussion_r97658391
--- Diff:
flink-examples/flink-examples-streaming/src/main/scala/org/apache/flink/streaming/scala/examples/windowing/GroupedProcessingTimeWindowExample.scala
---
@@ -0,0 +1,84 @@
+/*
+ * 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.scala.examples.windowing
+
+import java.util.concurrent.TimeUnit.MILLISECONDS
+
+import org.apache.flink.api.scala._
+import org.apache.flink.streaming.api.functions.sink.SinkFunction
+import
org.apache.flink.streaming.api.functions.source.RichParallelSourceFunction
+import
org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext
+import org.apache.flink.streaming.api.scala.StreamExecutionEnvironment
+import org.apache.flink.streaming.api.windowing.time.Time
+
+/**
+ * An example of grouped stream windowing into sliding time windows.
+ * This example uses [[RichParallelSourceFunction]] to generate a list of
key-value pair.
+ */
+object GroupedProcessingTimeWindowExample {
+
+ def main(args: Array[String]): Unit = {
+
+ val env = StreamExecutionEnvironment.getExecutionEnvironment
+ env.setParallelism(4)
+
+ val stream = env.addSource(new RichParallelSourceFunction[(Long,
Long)]() {
--- End diff --
Move the source function to a separate class? It "hides" the important
aspects of the example.
> Sync Scala and Java Streaming Examples
> --------------------------------------
>
> Key: FLINK-3551
> URL: https://issues.apache.org/jira/browse/FLINK-3551
> Project: Flink
> Issue Type: Sub-task
> Components: Examples
> Affects Versions: 1.0.0
> Reporter: Stephan Ewen
> Assignee: Lim Chee Hau
>
> The Scala Examples lack behind the Java Examples
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