[FLINK-11068] Convert the API classes *Table, *Window to interfaces

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: Table SQL / API
• Labels: pull-request-available
• Assignee: Hequn Cheng
• Reporter: Timo Walther
• Created: 04/Dec/18 11:05
• Updated: 01/Oct/19 15:39
• Resolved: 19/Mar/19 16:50

Description

A more detailed description can be found in FLIP-32.

This includes: Table, GroupedTable, WindowedTable, WindowGroupedTable, OverWindowedTable, Window, OverWindow

We can keep the "Table" Scala implementation in a planner module until it has been converted to Java.

We can add a method to the planner later to give us a concrete instance. This is one possibility to have a smooth transition period instead of changing all classes at once.

Issue Links

• blocks: FLINK-11067 Convert TableEnvironments to interfaces
• is a child of: FLINK-11448 Clean-up and prepare Table API to be uncoupled from table core
• is blocked by: FLINK-11449 Uncouple the Expression class from RexNodes
• is depended upon by: FLINK-11884 Port Table to flink-api-java
• links to: GitHub Pull Request #8006