The javaDoc seems reasonably helpful: /** * A lower-level, unstable API intended for developers. * * Developer API's might change or be removed in minor versions of Spark. * */
These would be contrasted with non-Developer (more or less production?) API's that are deemed to be stable within a major version of Spark. The other related ones are: AlphaComponent: A new component of Spark which may have unstable API's. Experimental: Experimental API's might change or be removed in minor versions of Spark, or be adopted as first-class Spark API's. In addition, from Patrick Wendell's talk on Spark 1.0: http://files.meetup.com/3138542/Spark%201.0%20Meetup.ppt ** API’s are stable for all non-alpha projects @DeveloperApi Internal API that is unstable 2014-07-20 20:46 GMT-07:00 我是will <k...@qq.com>: > hello, what does @developerApi? > > I saw it appear many times in spark source code > > Thx >
