It can be very useful to re-use some common part of a module and to create common parents to several modules just like in object oriented programming. The content assistant can be invoked to generate an import tag: just enter import, then Ctrl + Space, and the completion proposes "import" and generates an tag.Īcceleo allows you to override a part of the behavior of another module by extending it and by overriding some of its templates (all templates except those without with a private visibility). Note: It is possible to use a non-qualified name in an import, but this is not recommended since it can easily lead to bugs that are hard to understand in case of name conflicts between Acceleo modules. Select the module you want to import and its qualified name will be inserted. The content assistant (Ctrl + Space) will propose you all accessible modules. Import qualified::name::of::imported::module Consequently, Acceleo modules explicitly declare the modules they depend on via import declarations.
A module can also import another module to access its public templates and queries.Īn Acceleo module generally depends on other modules for its execution. It will also have access to its parent's public and protected templates and queries. The file must start with the module declaration in the form:Ī module can extend another module, in which case its templates will be able to override its parent's "public" and "protected" templates. In Acceleo, you can create expressions using a subset of OCL in order query the input models.Īn Acceleo module is a ".mtl" file, which contains templates (to generate code) and/or queries (to extract information from the manipulated models). The Acceleo language, named as MTL by the OMG, is composed of two main types of structures (templates and queries) inside of a module. Note: Whatever the installation procedure you choose, examples are available from the menu right-click => New => Examples => Acceleo Plug-ins.Īcceleo 3 is an implementation of the MOFM2T specification defined by the OMG.
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If you have an existing Eclipse installation and simply wish to install Acceleo in it, you have two possibilities:
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