[jira] [Updated] (FLINK-7018) Refactor streamGraph to clean interface

["Xu Pingyong (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-7018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xu Pingyong updated FLINK-7018:
-------------------------------
    Summary: Refactor streamGraph to clean interface  (was: Refactor streamGraph to clear interface)

> Refactor streamGraph to clean interface
> ---------------------------------------
>
>                 Key: FLINK-7018
>                 URL: https://issues.apache.org/jira/browse/FLINK-7018
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>            Reporter: Xu Pingyong
>            Assignee: Xu Pingyong
>
> Motivation:    
>        1. StreamGraph is a graph consisted of some streamNodes. So virtual nodes (such as select, sideOutput, partition) should be moved away from it. Main iterfaces of StreamGraph should be as following：
>         addSource(StreamNode sourceNode)
>         addSink(StreamNode sinkNode)
>        addOperator(StreamNode streamNode)
>        addEdge(Integer upStreamVertexID, Integer downStreamVertexID, StreamEdge.InputOrder inputOrder, StreamPartitioner<?> partitioner, List<String> outputNames, OutputTag outputTag)
>         getJobGraph()
>      2. StreamExecutionEnvironment should not be in StreamGraph, I create StreamGraphProperties which extracts all information the streamGraph needs from StreamExecutionEnvironment. It contains:
>     1) executionConfig
>     2) checkpointConfig
>     3) timeCharacteristic
>     4) stateBackend
>     5) chainingEnabled
>     6) cachedFiles
>     7) jobName
>     
> Related Changes:
>        I moved the part of dealing with virtual nodes to StreamGraphGenerator. And get properties of StreamGraph from StreamGraphProperties instead of StreamExecutionEnvironment.
>  
>       It is only a code abstraction internally.



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