GitHub user xccui opened a pull request: https://github.com/apache/flink/pull/5068
[FLINK-8122] [table] Name all built-in table sinks and sources ## What is the purpose of the change This PR adds names for all built-in table sources and sinks. ## Brief change log - Adds a `getRuntimeName()` method which returns a string consisting of the class name and the field names to the `TableSource` and `TableSink` traits. - Implements `getRuntimeName()` in all sub-sources and sub-sinks written in **Java** (since it seems they cannot extend the implementations in scala traits). - Names the `DataSources` and `DataSinks` with the `getRuntimeName()` after creating the stream operators in all built-in table sinks and sources. - To avoid NPE, adds a mock `DataStreamSink`(`DataStreamSource`) when invoking `Environment.addSource()` (`DataStream.addSink()`) in some existing tests. ## Verifying this change This change is a trivial rework / code cleanup without any test coverage. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable) You can merge this pull request into a Git repository by running: $ git pull https://github.com/xccui/flink FLINK-8122 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/5068.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #5068 ---- commit c0e837dc8a581ea5479a110dbf62bfbd44681560 Author: Xingcan Cui <xingc...@gmail.com> Date: 2017-11-24T09:53:20Z [FLINK-8122] [table] Name all built-in table sinks and sources ---- ---