systemml-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Deron Eriksson <>
Subject Standard code styles for DML and Java?
Date Tue, 02 May 2017 23:15:26 GMT
Recently Matthias, Mike, and I discussed the issue of DML code style on
SYSTEMML-1406 ( We
also have an issue regarding Java code style on SYSTEMML-137 (

In the discussion on SYSTEMML-1406, it sounds like Matthias, Mike, and I
all see value in having a consistent style, although individual preferences
differ. I would like to start a short discussion to see if we could apply
common style standards to our Java and DML files.

WRT Java, perhaps the Google Style Guide ( would be a good place
to start.

We could use these Eclipse/IntelliJ Java style templates as a base and
modify them for any changes we agree upon (for example, tabs vs spaces for
indentation). We could then check these templates into our project so that
everyone who contributes to SystemML can apply the common style to code,
thus adding consistency to the project.

WRT DML, the main issue we discussed was tabs vs spaces for indentation.

Some options I see are:
1) No official DML/Java styles
2) DML/Java styles (use spaces for indents, with style guide as basis for
3) DML/Java styles (use tabs for indents, with style guide as basis for

Although I would prefer 2), I would be happy with 3) as an improvement from
our existing 1). We could also have alternate options such as spaces for
DML and tabs for Java.


Deron Eriksson
Spark Technology Center

  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message