Jan Lukavský created BEAM-8550:
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Summary: @RequiresTimeSortedInput DoFn annotation
Key: BEAM-8550
URL: https://issues.apache.org/jira/browse/BEAM-8550
Project: Beam
Issue Type: New Feature
Components: beam-model, sdk-java-core
Reporter: Jan Lukavský
Assignee: Jan Lukavský
Implement new annotation {{@RequiresTimeSortedInput}} for stateful DoFn as
described in [design
document|https://docs.google.com/document/d/1ObLVUFsf1NcG8ZuIZE4aVy2RYKx2FfyMhkZYWPnI9-c/edit?usp=sharing].
First implementation will assume that:
- time is defined by timestamp in associated WindowedValue
- allowed lateness is explicitly zero and all late elements are dropped (due
to being out of order)
The above properties are considered temporary and will be resolved by
subsequent extensions (backwards compatible).
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