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https://issues.apache.org/jira/browse/BEAM-7700?focusedWorklogId=282491&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-282491
]
ASF GitHub Bot logged work on BEAM-7700:
----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Jul/19 06:51
Start Date: 25/Jul/19 06:51
Worklog Time Spent: 10m
Work Description: robinyqiu commented on pull request #9129: [BEAM-7700]
Java transform catalog
URL: https://github.com/apache/beam/pull/9129#discussion_r307134589
##########
File path: website/src/documentation/transforms/java/aggregation/groupbykey.md
##########
@@ -0,0 +1,50 @@
+---
+layout: section
+title: "GroupByKey"
+permalink: /documentation/transforms/java/aggregation/groupbykey/
+section_menu: section-menu/documentation.html
+---
+<!--
+Licensed 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.
+-->
+# GroupByKey
+<table align="left">
+ <a target="_blank" class="button"
+
href="https://beam.apache.org/releases/javadoc/current/index.html?org/apache/beam/sdk/transforms/GroupByKey.html";>
+ <img src="https://beam.apache.org/images/logos/sdks/java.png";
width="20px" height="20px"
+ alt="Javadoc" />
+ Javadoc
+ </a>
+</table>
+<br>
+Takes a keyed collection of elements and produces a collection where
+each element consists of a key and all values associated with that key.
+
+Normally, the result of a `GroupByKey` contains one element for each key
Review comment:
This sentence might be confusing. Even with windowing and triggering, each
time the output is still a (k, Iterable) pair. I would just remove this
sentence, and update the one above to "... consists of a key and a `Iterable`
of all values associated with that key."
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Issue Time Tracking
-------------------
Worklog Id: (was: 282491)
> Java transform catalog
> ----------------------
>
> Key: BEAM-7700
> URL: https://issues.apache.org/jira/browse/BEAM-7700
> Project: Beam
> Issue Type: Improvement
> Components: website
> Reporter: Rose Nguyen
> Assignee: Rose Nguyen
> Priority: Minor
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> Create catalog of core transforms (Java)
> -Java transforms overview
> -Links to Javadocs
> -Brief description
> -Related transforms
> -Links to programming guide
> -Examples section to integrate Colab notebooks
>
> See BEAM-7464 for Python.
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