Yes, Java support is working in my head. P. S. Sorry for my slow reaction times. I'm in my winter holidays. 😀 On Jan 19, 2015 5:37 PM, "Kostas Tzoumas" <ktzou...@apache.org> wrote:
> I think the plan is to add this for both Scala and Java (starting with > Scala) > > On Mon, Jan 19, 2015 at 1:33 AM, Fabian Hueske <fhue...@gmail.com> wrote: > > > This is great! > > Will this be exclusive for the Scala API or are we adding this (or > similar) > > functionality to the Java API as well? > > > > 2015-01-16 17:30 GMT+01:00 Stephan Ewen <se...@apache.org>: > > > > > Very exciting! > > > > > > This looks amazing. It almost looks like half a SQL interface ;-) > > > > > > On Fri, Jan 16, 2015 at 11:04 AM, Aljoscha Krettek < > aljos...@apache.org> > > > wrote: > > > > > > > Hi, > > > > I did some work recently on adding support for SQL-like queries on > top > > > > of DataSets. (This is known as "named datasets" in the jira issue: > > > > > > > > > > > > > > https://issues.apache.org/jira/browse/FLINK-947?jql=project%20%3D%20FLINK%20AND%20assignee%20%3D%20currentUser()%20AND%20resolution%20%3D%20Unresolved > > > > ). > > > > > > > > I have support for filter, join, grouping and aggregation. I think > the > > > > basis is quite strong now but we can add support for more data types > > > > and supported operations in the select expressions. > > > > > > > > Please have a look at my branch if you're interested: > > > > https://github.com/aljoscha/flink/tree/linq You can look at the new > > > > Expression ITCases to see what features are currently available and > > > > how the interface is used. There are also two complete programs: > > > > PageRankExpression and TPCHQuery3Expression. > > > > > > > > And now at last, a sneak peek at how the new interface is used: > > > > > > > > in.group('key).select('key, ('a + 10).avg + " the average", 'a.count) > > > > > > > > The notation 'foo are Scala symbols, I use them in the DSL to > > > > reference named fields. > > > > > > > > Cheers, > > > > Aljoscha > > > > > > > > > >
