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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Work logged] (BEAM-5149) Add support to the Java SDK harness to merge windows
Date Wed, 05 Sep 2018 20:15:00 GMT


ASF GitHub Bot logged work on BEAM-5149:

                Author: ASF GitHub Bot
            Created on: 05/Sep/18 20:14
            Start Date: 05/Sep/18 20:14
    Worklog Time Spent: 10m 
      Work Description: lukecwik commented on a change in pull request #6222: [BEAM-5149]
Add support for the Java SDK harness to merge windows.

 File path: model/pipeline/src/main/proto/beam_runner_api.proto
 @@ -202,9 +202,35 @@ message StandardPTransforms {
     // Payload: TestStreamPayload
     TEST_STREAM = 5 [(beam_urn) = "urn:beam:transform:teststream:v1"];
-    // Represents mapping of main input window into side input window.
-    // Payload: serialized WindowMappingFn.
+    // Represents mapping of main input window onto side input window.
+    //
+    // Side input window mapping function:
+    // Input: KV<nonce, SideInputWindow>
+    // Output: KV<nonce, MainInputWindow>
+    //
+    // For each main input window, the side input window is returned. The
 Review comment:
   Yes, your correct, its a typo.

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Issue Time Tracking

    Worklog Id:     (was: 141515)
    Time Spent: 1h  (was: 50m)

> Add support to the Java SDK harness to merge windows
> ----------------------------------------------------
>                 Key: BEAM-5149
>                 URL:
>             Project: Beam
>          Issue Type: Sub-task
>          Components: sdk-java-harness
>            Reporter: Luke Cwik
>            Assignee: Luke Cwik
>            Priority: Major
>              Labels: portability
>          Time Spent: 1h
>  Remaining Estimate: 0h
> Window merging function:
> {code:java}
> Input: KV<nonce, iterable<OriginalWindow>>
> Output: KV<nonce, KV<iterable<UnmergedOriginalWindow>, iterable<KV<MergedWindow,
> {code}
> For each set of original windows, a list of all unmerged windows is output alongside
a map of merged window to set of consumed windows. All original windows must be contained
in either the unmerged original window set or one of the consumed original window sets. Each
original window can only be part of one output set. The nonce is used by a runner to associate
each input with its output. The nonce is represented as an opaque set of bytes.

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