[FLINK-3957] Breaking changes for Flink 2.0

• Type: New Feature
• Status: Open
• Priority: Blocker
• Resolution: Unresolved
• Affects Version/s: 1.0.0
• Fix Version/s: 2.0.0
• Component/s: API / DataSet, API / DataStream, Build System
• Labels: 2.0-related
• Assignee: Unassigned
• Reporter: Robert Metzger
• Created: 23/May/16 14:06
• Updated: 08/Oct/24 10:24

Description

From time to time, we find APIs in Flink (1.x.y) marked as stable, even though we would like to change them at some point.

This JIRA is to track all planned breaking API changes.

I would suggest to add subtasks to this one.

Issue Links

• relates to: FLINK-19558 Umbrella Ticket for upgrading the REST API

Sub-Tasks

• Remove deprecated API for 2.0-preview: Resolved
• Remove Key interface: Resolved
• Make Path immutable: Closed
• Remove Parameter from WindowAssigner.getDefaultTrigger(): Resolved
• Remove deprecated API in flink-streaming-java module: Resolved
• Remove with method from CoGroupedStream and JoinedStream, and change apply method return type: Resolved
• Consider changing the RichFunction#open method signature to take no arguments.: Closed
• Remove all deprecated datastream api: Resolved
• Use Java's Duration instead of Flink's Time: Closed
• Remove deprecated ProgramArgsQueryParameter: Resolved
• Remove deprecated methods in FLIP-382: Closed
• Remove easy-to-drop deprecated APIs: Resolved
• Offer separate API for watermark generation and timestamp extraction: Closed
• Consider moving the file sources from the StreamExecutionEnvironment to the flink-connector-filesystem: Closed
• Unify Stream Sinks and OutputFormats: Closed
• Rename readFileStream from the StreamExecutionEnvironment: Closed
• Remove deprecated configuration keys from ConfigConstants: Closed
• Replace org.apache.flink.streaming.api.windowing.time.Time with org.apache.flink.api.common.time.Time: Resolved
• Remove Deprecated Methods from WindowedStream: Closed
• StreamExecutionEnvironment's set function return `this` instead of void: Closed
• Remove ClassTag in Scala DataSet API: Closed
• Make printing sinks non-parallel: Closed
• Make flink-core independent of Avro: Closed
• Scala DataStream#addSink returns Java DataStreamSink: Closed
• Deprecate API that uses Flink's Time implementation (related to FLINK-14638): Closed
• Remove deprecate API in flink-runtime exclude connector and state part: Resolved
• Remove deprecate API in flink-core exclude connector and state part: Resolved
• Remove deprecate RichFunction#open(Configuration): Resolved