[FLINK-21362] Remove State#onEnter

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.13.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Robert Metzger
• Reporter: Chesnay Schepler
• Created: 11/Feb/21 10:18
• Updated: 22/Feb/21 15:09
• Resolved: 22/Feb/21 15:09

Description

Since we no longer need to construct the new state before calling State#onLeave we could remove State#onEnter and move all contained logic into the constructor.

Issue Links

• links to: GitHub Pull Request #14963