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 <[email protected]>
To: Takeshi Yamamuro <[email protected]>; "Kumar, Abhishek (US -
Bengaluru)" <[email protected]>
Cc: "[email protected]" <[email protected]>
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 <[email protected]> wrote:
These package are used only for Scala.
On Mon, May 30, 2016 at 2:23 PM, Kumar, Abhishek (US - Bengaluru)
<[email protected]> wrote:
Hey,· I see some graphx packages listed
here:http://spark.apache.org/docs/latest/api/java/index.html·
org.apache.spark.graphx· org.apache.spark.graphx.impl·
org.apache.spark.graphx.lib· org.apache.spark.graphx.utilAren’t they meant
to be used with JAVA?Thanks From: Santoshakhilesh
[mailto:[email protected]]
Sent: Friday, May 27, 2016 4:52 PM
To: Kumar, Abhishek (US - Bengaluru) <[email protected]>;
[email protected]
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:[email protected]]
Sent: 27 May 2016 19:59
To: [email protected]
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
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Takeshi Yamamuro
