Hi Michael, yes, it seems that the self-contained jars only contain the Java examples.
You may also follow the quickstart [1] to get started writing Flink streaming programs in Scala. Nico [1] https://ci.apache.org/projects/flink/flink-docs-release-1.3/quickstart/ scala_api_quickstart.html On Wednesday, 27 September 2017 05:04:31 CEST Michael Fong wrote: > Thanks, Nico. > > > I look again at flink-examples- streaming_2.10-1.4-SNAPSHOT.jar, and it > indeed contains both. > > Originally I was looking at each self-contained jars as I used them as > examples to create and run my own streaming program. They only contain java > compiled class, if I am not mistaken. > > Let me try to create a scala example with similar build procedure. > > Thanks! > > > On Mon, Sep 25, 2017 at 10:41 PM, Nico Kruber <n...@data-artisans.com> > > wrote: > > Hi Michael, > > from what I see, Java and Scala examples reside in different packages, > > e.g. > > * org.apache.flink.streaming.scala.examples.async.AsyncIOExample vs. > > * org.apache.flink.streaming.examples.async.AsyncIOExample > > > > A quick run on the Flink 1.3. branch revealed flink-examples- > > streaming_2.10-1.3-SNAPSHOT.jar containing both (which you can verify with > > your favorite archiver tool for zip files). > > > > Afaik, there is no simple switch to turn off Java or Scala examples. You > > may > > either adapt the pom.xml or create your own Project with the examples and > > programming languages you need. > > > > > > Nico > > > > On Saturday, 23 September 2017 12:45:04 CEST Michael Fong wrote: > > > Hi, > > > > > > I am studying how to build a scala program from flink-examples/. > > > > > > I can see there are two source folders java/ and scala/ from IntelliJ, > > > > and > > > > > for most examples, there is a copy of examples for Java and Scala. > > > Executing 'mvn clean package -Pbuild-jar' would rests in a jar file > > > under > > > target/. I am wondering if that is a Java or Scala example that I just > > > compiled? In addition, is there a way to selectively choose Java o Scala > > > example to build with current maven settings? > > > > > > Thanks in advance,
