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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4460) Side Outputs in Flink
Date Fri, 10 Mar 2017 14:18:05 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15905141#comment-15905141
] 

ASF GitHub Bot commented on FLINK-4460:
---------------------------------------

Github user kl0u commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3484#discussion_r105399457
  
    --- Diff: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/transformations/SideOutputTransformation.java
---
    @@ -0,0 +1,72 @@
    +/*
    + * 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.transformations;
    +
    +import static java.util.Objects.requireNonNull;
    +
    +import com.google.common.collect.Lists;
    +import org.apache.flink.util.OutputTag;
    +import org.apache.flink.streaming.api.operators.ChainingStrategy;
    +
    +import java.util.Collection;
    +import java.util.List;
    +
    +
    +/**
    + * This transformation represents a selection of a side output of an upstream operation
with a
    + * given {@link OutputTag}.
    + *
    + * <p>This does not create a physical operation, it only affects how upstream operations
are
    + * connected to downstream operations.
    + *
    + * @param <T> The type of the elements that result from this {@code SideOutputTransformation}
    + */
    +public class SideOutputTransformation<T> extends StreamTransformation<T>
{
    +	private final StreamTransformation<T> input;
    --- End diff --
    
    Leave a blank line here.



> Side Outputs in Flink
> ---------------------
>
>                 Key: FLINK-4460
>                 URL: https://issues.apache.org/jira/browse/FLINK-4460
>             Project: Flink
>          Issue Type: New Feature
>          Components: Core, DataStream API
>    Affects Versions: 1.2.0, 1.1.3
>            Reporter: Chen Qin
>            Assignee: Chen Qin
>              Labels: latearrivingevents, sideoutput
>
> https://docs.google.com/document/d/1vg1gpR8JL4dM07Yu4NyerQhhVvBlde5qdqnuJv4LcV4/edit?usp=sharing



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