Protobuf for Apache Flink DataStream#

Native Protocol Buffers type integration for the Apache Flink DataStream API. Use generated Protobuf messages with explicit type information or factory registration, with generic types disabled.

This is 1.0.0 documentation. Maven Central publishes 1.0.0 for Flink 2.x and 1.0.0-1.20 for Flink 1.20 LTS; Development follows main. The 0.x milestones were unpublished, and their APIs and state formats are not compatibility contracts.

Start with the quickstart , then read usage and configuration . The compatibility guide distinguishes wire compatibility from saved-state compatibility. Supported types covers Google Well-Known Types and OpenTelemetry messages.

The menu’s API reference describes the same source revision as the selected documentation. See documentation versions for retention and source provenance, and development for local verification.