The traceability functionnality reduces this risk, but it can't solve all the cases of desynchronization. One of the key best practices in code generation is to generate code as if you would write it manually. The code should be generated by Acceleo templates. Language improvements, XML compatibility, export of generators as Eclipse plugin. OCL is a standard language from the OMG to navigate in models and to define constraints on the elements of a model. New cast to EObject except while generating on Ecore If you are not generating on the Ecore metamodel http: The source code of Acceleo 1. 
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OCL is a standard language from the OMG to navigate in models and to define avceleo on the elements of a model. Inwhile moving to Acceleo 3, the project has been accepted in the Eclipse Foundation.
One of the key best practices in code generation is to generate code as if you would write it manually.
Preventing problems with traceability information In order to prevent problems with the traceability information calculated by Acceleo some conventions need to be followed. Acceleo Developer s Eclipse Foundation Stable release 3. The Acceleo community is gathered around the Acceleo part of the website of the Eclipse Foundation.
Wikimedia Commons has media related to Acceleo. Acceleo changed its licence with the release of Acceleo 1. Organization of the packages Every Acceleo project should contain several key packages. Acceleo is an open-source code generator from the Eclipse Foundation that allows people to use a model-driven approach to building applications. Retrieved from " te,plates Archived from the original on 29 June Parenthesis in "for" and accwleo blocks Parenthesis in the "if" and "for" block should always be used.
Each call to a main template by Acceleo will launch a new initialization of the context of the generation and it can have an impact on the generation the cache of the queries is cleared, the cross referencer used for "eInverse " is cleared too, etc.
Reserved Keywords Do not use any OCL or Acceleo keyword for the name of your modules, templates, queries or variables. Exporting packages The main package, the properties package and the service package should be exported.
Acceleo - Wikipedia
If you use the simple name, the first module found with the same simple name will be used. It is not recommended to use Java services to return large amount of text.
Integration of Java services Java services should not be called directly from a template without being wrapped in a query.
When generating a file, the path of the file should be calculated by a query.
Java services should be use to query the model and return one or several model elements. Variables Variables should also be named using a camel case name starting with a lower case "a" or "an" and followed by the name of the type or the name of the feature. Obeo Traceability can handle some modifications of the generated code but a massive change of the generated code like the use of a formatter on the generated code would create massive gaps between the traceability information and the code.
When the templztes is created, the user can use another model to generate a piece of code with a similar appearance but with a different content.
Role of Java services Java services should be used to query the model and to filter the element of the model.
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Polymorphism Polymorphism should be preferred to "[for ] [if a. The Acceleo debugger gives the possibility to keep an eye on the progression of a generation. They were the trademark of the company Obeo, creator of Acceleo, and they were transferred to the Eclipse Foundation when Acceleo was accepted as an official project. It gives the user the ability to find bottleneck in the code generator created. Compatibility with Eclipse 3.
Here we are using the following elements: Generation profiler, actions on the outline. Like any project, a code generator evolves and to make sure that regression are detected it is recommended to maintain along with the generator a test project with a non regression model. The developers of Acceleo are also communicating with the community thanks to presentation realized in MDA or Eclipse conferences. Those dedicated parts are most of the time expressions specified on the entity of the input models used to select and extract information from those models.
In Acceleo, the "let" block is strictly equals to an 'if instanceof". Do not use the implicit context to call an operation [myOperation ], always use an explicit variable [myVariable.
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