DoFnSignature should have info on the fn's side inputs and outputs
- Dominant language
- Java
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- 1d 20h
- Merged PRs (30d)
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Description
This is logically part of the fn itself, rather than its enclosing transform.
Example where this would have been important: signature.processElement().observesWindow() should return true for a DoFn that has any side inputs, since side inputs are windowed. See BEAM-1149.
Imported from Jira [BEAM-1159](https://issues.apache.org/jira/browse/BEAM-1159). Original Jira may contain additional context.
Reported by: jkff.
Contributor guide
Research direction
Locate DoFnSignature and the processElement().observesWindow() behavior, then read the BEAM-1149 context linked in the issue. The change is complete when DoFnSignature exposes the function's side inputs and outputs and observesWindow() returns true for a DoFn with side inputs, with tests covering that behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- stream-processing
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100