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--- Eclipse Con 2010 --- Acceleo is a pragmatic implementation of the OMG* standard for code generation called MTL*. Still in incubation state, we plan to have Acceleo graduate for the next Eclipse simultaneous release (Helios).Being an expert at code generation or Acceleo is not necessary to get started on your first code generator : using the Acceleo editor and the powerful features it exposes (completion, syntax highlighting, on-the-fly compilation, quick outline, ...), it is very easy to get started once you understand the most basic principles.This talk presents both the MTL language and the Acceleo Development Toolkit which is provided in the M2T project. Beginners will learn what code generation, M2T, and Acceleo are, as well as how to use them on a concrete case-study. Acceleo addicts will discover the new standard syntax, new functionalities and techniques. We will give you enough of the basics to create your own code generation for a specific target system. We have chosen the Android platform as a target to show that we can also use Acceleo for mobile software.Here is the talk agenda :- Acceleo : What's that new code generation engine?- Create an Android prototype and its corresponding model- Initialize your code generation project from the prototype- Editing your code generation file to make the Android prototype run- Launching your code generation on another model example- Packaging as an eclipse plug-in and for standalone usage- Create new Android applications in few clicks- How to override a specific behavior in the target environment- On the developper side : How to make your own extensions with Acceleo?We'll end the talk with other complex code generation examples made with Acceleo : EEF, UML to Java, Ecore to python, Migrating from a language to another...*OMG : Object Management Group*MTL : Model to Text Language
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1
Jonathan Musset - [email protected]
Acceleo Code Generation
Obeo
Let's start with an Android example
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Acceleo : what's that new code generation engine?
Meta-model and templates based technology
Implementation of the Model To Text OMG standard (MTL)
Eclipse Modelling / M2T project
Pragmatic approach – How to start from example?
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
This is a Quick Tutorial – My goals
Beginners will see a simple but concrete case-study
Acceleo addicts will discover some new killing features
Android experts will learn enough of the basics to be able to create advanced code generator in a few days. As you will see, I'm not an Android expert...
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Prototype based approach – Starting from an example
A classic example of Android application : « MyContacts »
« We would like to be able to fully generate the same kind of application »
MyContacts
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
The prototype sources and the model
Different kinds of sources to be generated!Java UI, Java DB, XML, properties...
The model must contain all the specific settings of the applicationAndroid Activity, Entity Fields...
One model element « N » generated text parts→
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Initialize the Android code generation project
An MTL file for each kind of generated file
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Initialize the workflow – The main entry point
An MTL file that calls the other ones... (Mentioned in the OMG specification)
Java / MWE / ANT? Call the Java Standalone API to run the code generation!
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Editing the code generator – Quick replacement
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Editing the code generator – Quick hierarchy tree
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Run and test the generated version of the prototype
MyContacts
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Run on other models to create new applications...
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
A little bit about incremental generation
« My web service is conserved when I generate the application again »
→ Defining specific coding zones with user tags [protected]
→ Using JMerge with the @generated annotation
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Workbench Acceleo views – Edit and maintain!
The « Result View » to show how the text and the model are synchronized
The « Overrides View » to override an existing template behavior
The « Patterns View » to define your own completion proposal
© Copyright Obeo | 22 March, 2010
Let's start with an Android exampleAcceleo Code Generation
Conclusion
Now you can make a complete Android code generator (more widgets...)
We plan to have Acceleo graduate along with the Helios release
Version 3.0 – The last stable release out of Eclipse was 2.x
15
Jonathan Musset - [email protected]
Acceleo Code Generation
Obeo
Let's start with an Android example
