I believe it was intentional with the idea that it would be more unified between Java and Scala APIs. If your talking about the javadoc mention in https://github.com/apache/spark/pull/14466/files - I believe the += is meant to refer to what the internal implementation of the add function can be for someone extending the accumulator (but it certainly could cause confusion).
Reynold can provide a more definitive answer in this case. On Tue, Aug 2, 2016 at 1:46 PM, Bryan Cutler <cutl...@gmail.com> wrote: > It seems like the += operator is missing from the new accumulator API, > although the docs still make reference to it. Anyone know if it was > intentionally not put in? I'm happy to do a PR for it or update the docs > to just use the add() method, just want to check if there was some reason > first. > > Bryan > -- Cell : 425-233-8271 Twitter: https://twitter.com/holdenkarau
