org.apache.beam.sdk.transforms.windowing.Window.remerge()方法的使用及代码示例

x33g5p2x  于2022-02-03 转载在 其他  
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本文整理了Java中org.apache.beam.sdk.transforms.windowing.Window.remerge()方法的一些代码示例,展示了Window.remerge()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。Window.remerge()方法的具体详情如下:
包路径:org.apache.beam.sdk.transforms.windowing.Window
类名称:Window
方法名:remerge

Window.remerge介绍

[英]Creates a Window PTransform that does not change assigned windows, but will cause windows to be merged again as part of the next org.apache.beam.sdk.transforms.GroupByKey.
[中]创建一个窗口P转换,该转换不会更改分配的窗口,但会导致窗口作为下一个组织的一部分再次合并。阿帕奇。梁sdk。转变。GroupByKey。

代码示例

代码示例来源:origin: org.apache.beam/beam-sdks-java-core

@Test
@Category(NeedsRunner.class)
public void testRemerge() {
 List<KV<String, Integer>> ungroupedPairs = Arrays.asList();
 PCollection<KV<String, Integer>> input =
   p.apply(
       Create.of(ungroupedPairs)
         .withCoder(KvCoder.of(StringUtf8Coder.of(), BigEndianIntegerCoder.of())))
     .apply(Window.into(Sessions.withGapDuration(Duration.standardMinutes(1))));
 PCollection<KV<String, Iterable<Iterable<Integer>>>> middle =
   input
     .apply("GroupByKey", GroupByKey.create())
     .apply("Remerge", Window.remerge())
     .apply("GroupByKeyAgain", GroupByKey.create())
     .apply("RemergeAgain", Window.remerge());
 p.run();
 Assert.assertTrue(
   middle
     .getWindowingStrategy()
     .getWindowFn()
     .isCompatible(Sessions.withGapDuration(Duration.standardMinutes(1))));
}

代码示例来源:origin: org.apache.beam/beam-sdks-java-core

.apply(Window.remerge())
    .setWindowingStrategyInternal(input.getWindowingStrategy());
PCollection<KV<K, InputOrAccum<InputT, AccumT>>> preprocessedCold =

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