[
https://issues.apache.org/jira/browse/BEAM-3979?focusedWorklogId=94835&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-94835
]
ASF GitHub Bot logged work on BEAM-3979:
----------------------------------------
Author: ASF GitHub Bot
Created on: 24/Apr/18 22:51
Start Date: 24/Apr/18 22:51
Worklog Time Spent: 10m
Work Description: kennknowles commented on a change in pull request
#4989: [BEAM-3979] Start completing the new DoFn vision: plumb context
parameters into process functions.
URL: https://github.com/apache/beam/pull/4989#discussion_r183902864
##########
File path:
sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFnTester.java
##########
@@ -654,6 +687,41 @@ public Void
dispatch(DoFnSignature.Parameter.WindowParameter p) {
return null;
}
+ @Override
+ @Nullable
+ public Void dispatch(DoFnSignature.Parameter.ElementParameter p) {
+ return null;
Review comment:
I don't think any of these should be null or nullable, but should throw.
They are also totally not necessary, since `WithDefault` means you don't
have to override any case you are not interested in.
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Issue Time Tracking
-------------------
Worklog Id: (was: 94835)
> New DoFn should allow injecting of all parameters in ProcessContext
> -------------------------------------------------------------------
>
> Key: BEAM-3979
> URL: https://issues.apache.org/jira/browse/BEAM-3979
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Affects Versions: 2.4.0
> Reporter: Reuven Lax
> Assignee: Reuven Lax
> Priority: Major
> Fix For: 2.5.0
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> This was intended in the past, but never completed. Ideally all primitive
> parameters in ProcessContext should be injectable, and OutputReceiver
> parameters can be used to collection output. So, we should be able to write a
> DoFn as follows
> @ProcessElement
> public void process(@Element String word, OutputReceiver<String> receiver) {
> receiver.output(word.toUpperCase());
> }
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