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titleDeprecated since 0.12

This article is deprecated. The described features are no longer available in current releases.

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titleProject Overview

Responsible:

Related Theses:

  • Christian Motika, Semantics and Execution of Domain Specific Models – KlePto and an Execution Framework, December 2009 (pdf)
  • Sören Hansen, Configurations and Automated Execution in the KIELER Execution Manager, March 2010 (pdf)

...

The method step() is called during the execution. It depends on the interface that is implemented what kind of data is passed as a parameter (JSONString or JSONObject) and also what (same!) kind is expected to be returned by the implementation. The parameter of the step() method contains the requested data. It depends on the following:

method to override standard returninfo
isObserver()n/aIf returned false, the DataComponent will always get a null value as a parameter.
provideFilterKeys()nullA String[] array of keys that the DataComponent wants to listen to should be returned.
If null is returned then the DataComponent will always get all unfiltered data.
isDeltaObserver()falseIf true is returned, the DataComponent will get only the new or updated data since the last step it was scheduled (and not skipped, see pure data observers in scheduling section).
If false is returned, the DataComponent will always get the complete (updated) data since the first execution step

The methods isProducer() and isObserver() must be implemented and should return a boolean value indicating whether the DataComponent wants to receive any data (s.a.) or produces data or even both. There is a possibility of so called Initialization DataComponents that neither receive nor produce any data but only are used during the initialization and wrap-up phase when their initialize() and wrapup() method is called.

...

As another case study there exists a SimpleRailControlEditor for the  model railway of the Christian-Albrechts University of Kiel. It lets you create controllers for the model railway by modeling them with a generated Eclipse GMF editor. These models can be transformed into executable C-Code by a model2text-Xpand-transformation on the one hand. On the other there exists a complete Xtend-transformation which generates executable and I/O-equivalent  Ptolemy models out of them. The SimpleRailCtrl Ptolemy Simulator DataComponent is then capable of executing these Ptolemy models using the  Triq Ptolemy Eclipse plug-in. Together with the KIELER model visualizer the active states (nodes) of the controller model can then be illustrated during the execution.

 


There also exists a  demo video that shows the just described behavior. Whenever the execution is being initialized the Ptolemy simulator will transform the currently saved EMF model of the opened diagram into a semantically equivalent but executable ptolemy moml-File.