[FLINK-23213] Remove ProcessFunctionOperation

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.14.0
• Component/s: API / Python
• Assignee: Dian Fu
• Reporter: Dian Fu
• Created: 02/Jul/21 03:57
• Updated: 02/Jul/21 06:10
• Resolved: 02/Jul/21 06:10

Description

Currently there are three operations to support Python DataStream API: ProcessFunctionOperation, DataStreamKeyedStatefulOperation DataStreamStatelessFunctionOperation. Actually we could refactor it a bit to merge ProcessFunctionOperation and DataStreamStatelessFunctionOperation into one.