[FLINK-19318] Deprecate timeWindow() operations in DataStream API

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.12.0
• Component/s: API / DataStream
• Labels: pull-request-available

Release Note

In Flink 1.12 we deprecated the `timeWindow()` operations in the DataStream API. Please use `window(WindowAssigner)` with either a `TumblingEventTimeWindows`, `SlidingEventTimeWindows`, `TumblingProcessingTimeWindows`, or `SlidingProcessingTimeWindows`. For more information, see the deprecation description of `TimeCharacteristic`/`setStreamTimeCharacteristic`.

(This is formatted as Markdown for easy inclusion in the release blog post)

• Assignee: Aljoscha Krettek
• Reporter: Aljoscha Krettek
• Created: 21/Sep/20 09:10
• Updated: 06/Oct/20 07:13
• Resolved: 06/Oct/20 07:13

Description

Excerpt from FLIP-134:

As describe above, we think timeWindow() is not a useful operation and therefore propose to deprecate and eventually remove it. The operation can have surprising behaviour and users should use explicit process-time or event-time operations.

Issue Links

• links to: GitHub Pull Request #13531