le cast de IState pose problème

Version imprimable

Bonjour,:D

J'ai besoin d'assigner sDep, de type IState, à la méthode setLink :

Code:

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			IState sDep = diagram.getInvokeState();
			IMacroState sInv = (IMacroState)sDep;
			Utils.setLink( diagram, sInv, Frequency.NORMAL, preconditionNormalized.Sujet, operState);

or l'affectation de sDep à sInv déclenche une exception :

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java.lang.ClassCastException: com.all4tec.matelo.datamodel.diagram.impl.State cannot be cast to com.all4tec.matelo.datamodel.diagram.IMacroState
	at com.all4tec.matelo.linguistique.wizards.BuildModel.BuildMainModel(BuildModel.java:2688)
	at com.all4tec.matelo.linguistique.wizards.BuildModel.buildModel(BuildModel.java:3759)
	at com.all4tec.matelo.linguistique.wizards.LinguistiqueImportWizard.performFinish(LinguistiqueImportWizard.java:104)

celui qui m'orientera sera :ccool:

08/07/2015, 09h48
eulbobo

Tout ce qu'on peut te dire, c'est que la méthode diagram.getInvokeState() renvoie un objet qui implémente IState, et que la classe réelle que tu récupères (com.all4tec.matelo.datamodel.diagram.impl.State) n'implémente pas IMacroState...

Pour avoir un exemple plus parlant, c'est comme si tu demandais un MorceauDeViande à ton boucher et que tu voulais le faire passer pour un CoffreFort... Ca ne marchera pas...

Je m'en suis sortie

en implémentant 3 méthodes setLink:

Code:

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	public static ITransition setLink(IDiagram diagram, IMacroState stateFrom, Frequency frequency, String name, IMacroState stateTo)
	{
		ITransition transition;
		IDiagramFactory diagramFactory = IDiagramFactory.eINSTANCE;
		transition = diagramFactory.createTransition(getProfilesOfCurrentProject(), getAttributesOfCurrentProject(), getTestPlatformAssociationNodes(), name, stateFrom, stateTo);
		transition.setName( name);
		Entry<IProfile, IProbability> probabilityEntry = transition.getProbabilities().get(0);
		IProbability probability = probabilityEntry.getValue();
		transition.setSourceState(stateFrom);
		transition.setTargetState(stateTo);
		probability.setFrequency(frequency);
		diagram.getTransitions().add(transition);
		return( transition);
	}
	public static ITransition setLink(IDiagram diagram, IState stateFrom, Frequency frequency, String name, IMacroState stateTo)
	{
		ITransition transition;
		IDiagramFactory diagramFactory = IDiagramFactory.eINSTANCE;
		transition = diagramFactory.createTransition(getProfilesOfCurrentProject(), getAttributesOfCurrentProject(), getTestPlatformAssociationNodes(), name, stateFrom, stateTo);
		transition.setName( name);
		Entry<IProfile, IProbability> probabilityEntry = transition.getProbabilities().get(0);
		IProbability probability = probabilityEntry.getValue();
		transition.setSourceState(stateFrom);
		transition.setTargetState(stateTo);
		probability.setFrequency(frequency);
		diagram.getTransitions().add(transition);
		return( transition);
	}
	public static ITransition setLink(IDiagram diagram, IMacroState stateFrom, Frequency frequency, String name, IState stateTo)
	{
		ITransition transition;
		IDiagramFactory diagramFactory = IDiagramFactory.eINSTANCE;
		transition = diagramFactory.createTransition(getProfilesOfCurrentProject(), getAttributesOfCurrentProject(), getTestPlatformAssociationNodes(), name, stateFrom, stateTo);
		transition.setName( name);
		Entry<IProfile, IProbability> probabilityEntry = transition.getProbabilities().get(0);
		IProbability probability = probabilityEntry.getValue();
		transition.setSourceState(stateFrom);
		transition.setTargetState(stateTo);
		probability.setFrequency(frequency);
		diagram.getTransitions().add(transition);
		return( transition);
	}