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< MoDisco
Revision as of 12:38, 12 February 2010 by (Talk | contribs) (Add details about checkstyle)

Eclipse JDT Warnings Level

For code style verification, it is recommended to configure Eclipse jdt settings for errors/warning levels : all rules levels set as "ignored" should be set as "warning".

Some rules might create too many constraints in some java circumstances. The developer is allowed to disactivate the rules in specific areas :

- with projects specific errors/warning levels.

- with @SuppressWarnings, in adding some explanation to the deviation.

Checkstyle Usage

For MoDisco internal developments, the project defines a MoDisco.checkstyle file. This file defines coding rules. It was initiated from the "sun conventions for Eclipse" checkstyle file. Some constraining rules have been disabled.

This project is available in SVN:

For configuring a new IDE :

  • Go in Window > Preferences > Checkstyle, and define a new global configuration of type 'Project Relative Configuration', pointing to the MoDisco.checkstyle file

Then each new MoDisco source project should have this checkstyle file applied (popup menu, Checkstyle > Activate Checkstyle). Additional warnings are then computed on source code. A new builder and a .checkstyle file are created in the project.

Some generated files (such as EMF generated files) do not comply with these rules. For such files, the warnings should be ignored.

Local configuration

It is also possible to configure checkstyle on a project, thus removing the need to configure it at the workspace level.

Here is an example checkstyle configuration file (.checkstyle). It references the checkstyle configuration file in the "" project and ignores warnings on "":

 <?xml version="1.0" encoding="UTF-8"?>
 <fileset-config file-format-version="1.2.0" simple-config="true">
   <local-check-config name="MoDisco" location="../" type="project" description=""/>
   <fileset name="all" enabled="true" check-config-name="MoDisco" local="true">
     <file-match-pattern match-pattern="." include-pattern="true"/>
     <file-match-pattern match-pattern="" include-pattern="false"/>


Checkstyle is not an tool

Note that Checkstyle is not an tool. However, its source code is under the EPL, and its current use has been formally IP-validated for the MoDisco project:

Also note that Checkstyle is not intended to be distributed with MoDisco.

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