UML Composite Structure

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====== The execution model shall provide a flexible mechanism for instantiation of composite structures ======

  * Prototype implementation available
  * Based on an extension of CallOperationActionAction::doAction, and introduction of a new semantic strategy: CS_ConstructStrategy
    * If the called Operation is a <<Create>> operation, and it has no method, then the CS_ConstructStrategy is used to construct the composite structure instance
  * Using this prototype implementation, the Test Suite for instantiation of composite structures passes

  * Issues:
    * How to properly determine that an operation is a <<create>> operation?
      * Currently, the solution is implementation specific (Eclipse UML2)
    * How do we manage operation dispatching (i.e., a parent class has a constructor operation with a method. Should we execute it before performing default construction?)

  * TODOs:
    * When instantiating values for parts, the default construction strategy is systematically applied.
      * It should be used only if the type of the part has a <<create>> operation, and this operation has no method. If it is not the case, construction should follow conventions of the Alf to fUML mapping for an instance creation expression.
    * Start classifier behavior of classes constructed for parts
    * Account for default values when instantiating values for parts

UML Composite Structure

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