[FLINK-20436] Simplify type parameter of ExecNode

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Done
• Fix Version/s: 1.13.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: godfrey he
• Reporter: godfrey he
• Created: 01/Dec/20 08:00
• Updated: 18/Dec/20 08:34
• Resolved: 03/Dec/20 02:06

Description

Currently, ExecNode#translateToPlan takes BatchPlanner or StreamPlanner as a parameter, so ExecNode has a type parameter E <: Planner, which indicates the node is a batch node or a streaming node. While in the future, a plan may contain both batch nodes and stream node. The type parameter can be removed, the implementation base class can cast the planner to expected planner.

Issue Links

• links to: GitHub Pull Request #14270