[BEAM-8550] @RequiresTimeSortedInput DoFn annotation

• Type: New Feature
• Status: Triage Needed
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 2.20.0
• Component/s: beam-model, sdk-java-core
• Labels: Done
• Assignee: Jan Lukavský
• Reporter: Jan Lukavský
• Created: 04/Nov/19 11:36
• Updated: 13/Apr/23 10:59
• Resolved: 06/Feb/20 11:23

Description

Implement new annotation @RequiresTimeSortedInput for stateful DoFn as described in design document. 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).

Issue Links

• links to: GitHub Pull Request #8774