From Eclipsepedia

Contents 1 Description 1.1 Completion on helpers 1.2 Completion on rules 2 Use

Description

The current version of ATL (newer than 2.0.0RC2) provides a basic content assist system.

Completion purposes basic templates for rule, helper, from, to, do, using sections. You can also access EMF metamodels informations (from their nsURI, or a relative path).

Completion on helpers

• primitive types
• some model elements : context, parameter types, output type

Completion on rules

• input, output model elements
• left-part of bindings

Use

To make model elements completion available, you have to put some information on the top of the file :

• -- @nsURI : the nsURI for a given metamodel, if you want to load a metamodel from the EMF registry,
• -- @path : the path of a given metamodel, if you want to dynamically load a metamodel from an ecore file.

Only EMF metamodels are supported. You must spécify the relative path of the file into the workspace.

Here is the top of an UML2AnyMM transformation :

-- @path AnyMM=/AnyProject/AnyFolder/AnyMM.ecore
-- @nsURI UML=http://www.eclipse.org/uml2/2.1.0/UML

module Class2Relational;
create OUT : AnyMM from IN : UML;

-- ...transformation helpers and rules

Completion is triggered with the Ctrl + space keys, or when typing a space in a context where some content assist is available.