[FLINK-29453] Add uidHash support to State Processor API

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.17.0
• Component/s: API / State Processor
• Assignee: Chesnay Schepler
• Reporter: Chesnay Schepler
• Created: 28/Sep/22 11:43
• Updated: 11/Oct/22 11:12
• Resolved: 11/Oct/22 11:12

Description

The state process API is currently limited to working with uids.

We should change this since this is a good application for the API.

The API should be extended to support uidHashes wherever a uid is support, and we should add a method to map uid[hashes] to a different uid[hash].

Sub-Tasks

• Deduplicate code in SavepointReader: Closed
• Add OperatorIdentifier: Closed
• Add methods that accept OperatorIdentifier: Closed
• Add a uid(hash) remapping function: Closed