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Posted to user@spark.apache.org by william <kh...@qq.com> on 2014/07/21 07:52:52 UTC

回复： What does @developerApi means?

thank you Stephen




------------------ 原始邮件 ------------------
发件人: "Stephen Boesch";<ja...@gmail.com>;
发送时间: 2014年7月21日(星期一) 中午11:55
收件人: "user"<us...@spark.apache.org>; 

主题: Re: What does @developerApi means?



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 <kh...@qq.com>:
  
hello, what does @developerApi? 
 
I saw it appear many times in spark source code
 
Thx‍