btw, GraphX in Action is one of the better books out on Spark. Michael did a great job with this one. He even breaks down snippets of Scala for newbies to understand the seemingly-arbitrary syntax. I learned quite a bit about not only Spark, but also Scala.
And of course, we shouldn't forget about Sean's Advanced Analytics with Spark which, of course, is a classic that I still reference regularly. :) On Mon, May 30, 2016 at 7:42 AM, Michael Malak < michaelma...@yahoo.com.invalid> wrote: > Yes, it is possible to use GraphX from Java but it requires 10x the amount > of code and involves using obscure typing and pre-defined lambda prototype > facilities. I give an example of it in my book, the source code for which > can be downloaded for free from > https://www.manning.com/books/spark-graphx-in-action The relevant example > is EdgeCount.java in chapter 10. > > As I suggest in my book, likely the only reason you'd want to put yourself > through that torture is corporate mandate or compatibility with Java > bytecode tools. > > > ------------------------------ > *From:* Sean Owen <so...@cloudera.com> > *To:* Takeshi Yamamuro <linguin....@gmail.com>; "Kumar, Abhishek (US - > Bengaluru)" <abhishekkuma...@deloitte.com> > *Cc:* "user@spark.apache.org" <user@spark.apache.org> > *Sent:* Monday, May 30, 2016 7:07 AM > *Subject:* Re: GraphX Java API > > No, you can call any Scala API in Java. It is somewhat less convenient if > the method was not written with Java in mind but does work. > > On Mon, May 30, 2016, 00:32 Takeshi Yamamuro <linguin....@gmail.com> > wrote: > > These package are used only for Scala. > > On Mon, May 30, 2016 at 2:23 PM, Kumar, Abhishek (US - Bengaluru) < > abhishekkuma...@deloitte.com> wrote: > > Hey, > · I see some graphx packages listed here: > http://spark.apache.org/docs/latest/api/java/index.html > · org.apache.spark.graphx > <http://spark.apache.org/docs/latest/api/java/org/apache/spark/graphx/package-frame.html> > · org.apache.spark.graphx.impl > <http://spark.apache.org/docs/latest/api/java/org/apache/spark/graphx/impl/package-frame.html> > · org.apache.spark.graphx.lib > <http://spark.apache.org/docs/latest/api/java/org/apache/spark/graphx/lib/package-frame.html> > · org.apache.spark.graphx.util > <http://spark.apache.org/docs/latest/api/java/org/apache/spark/graphx/util/package-frame.html> > Aren’t they meant to be used with JAVA? > Thanks > > *From:* Santoshakhilesh [mailto:santosh.akhil...@huawei.com] > *Sent:* Friday, May 27, 2016 4:52 PM > *To:* Kumar, Abhishek (US - Bengaluru) <abhishekkuma...@deloitte.com>; > user@spark.apache.org > *Subject:* RE: GraphX Java API > > GraphX APis are available only in Scala. If you need to use GraphX you > need to switch to Scala. > > *From:* Kumar, Abhishek (US - Bengaluru) [ > mailto:abhishekkuma...@deloitte.com <abhishekkuma...@deloitte.com>] > *Sent:* 27 May 2016 19:59 > *To:* user@spark.apache.org > *Subject:* GraphX Java API > > Hi, > > We are trying to consume the Java API for GraphX, but there is no > documentation available online on the usage or examples. It would be great > if we could get some examples in Java. > > Thanks and regards, > > *Abhishek Kumar* > > > > This message (including any attachments) contains confidential information > intended for a specific individual and purpose, and is protected by law. If > you are not the intended recipient, you should delete this message and any > disclosure, copying, or distribution of this message, or the taking of any > action based on it, by you is strictly prohibited. > v.E.1 > > > > > > > > > -- > --- > Takeshi Yamamuro > > > > -- *Chris Fregly* Research Scientist @ Flux Capacitor AI "Bringing AI Back to the Future!" San Francisco, CA http://fluxcapacitor.ai
