Eclipse Community Forums: Epsilon » Reading text file in EOL/EGL

Help

Home

Home » Modeling » Epsilon » Reading text file in EOL/EGL(Generating code with complete method bodies.)

Show: Today's Messages :: Show Polls :: Message Navigator

Reading text file in EOL/EGL [message #1791739]

Wed, 04 July 2018 15:23

Rachel Howard

Messages: 2
Registered: July 2018

Junior Member

I have only recently started looking into model driven code generation. I have made UML diagrams in papyrus from which, using EGL and EGX, I have created basic java code structures.
Does anyone know of a way for the code to be generated with method bodies obtained from other files? txt, java, eol or other?
I want to keep generated code and manually written code as separate as possible to make model extension and regeneration as easy as possible.

A java-read-file-esq function in the EGL file would be perfect.

snippet of EGL code:
[% for(anOperation in allOperations){ %]
[%=anOperation.visibility%] static void [%=anOperation.name%](){
System.out.println("In generated code, looking for manually enter body.");
[*read file and print body here *]
}
[% }%]

Report message to a moderator

Re: Reading text file in EOL/EGL [message #1791913 is a reply to message #1791739]

Fri, 06 July 2018 20:30

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

Hi Rachel,

There are several strategies for integrating hand-written with auto-generated code and [1] provides an overview of some of them. For EGL, you may want to have a look at "protected regions" in the book.

Cheers,
Dimitris

[1] http://www.se-rwth.de/publications/A-Comparison-of-Mechanisms-for-Integrating-Handwritten-and-Generated-Code-for-Object-Oriented-Programming-Languages.pdf

Report message to a moderator