public static DslModeling::ElementLink Connect(DslModeling::ModelElement source, DslModeling::ModelElement target)
{
if (source == null)
{
throw new global::System.ArgumentNullException("source");
}
if (target == null)
{
throw new global::System.ArgumentNullException("target");
}
if (CanAcceptSourceAndTarget(source, target))
{
if (source is global::IPS.UMLSPF.Herencia)
{
if (target is global::IPS.UMLSPF.Clase)
{
global::IPS.UMLSPF.Herencia sourceAccepted = (global::IPS.UMLSPF.Herencia)source;
global::IPS.UMLSPF.Clase targetAccepted = (global::IPS.UMLSPF.Clase)target;
DslModeling::ElementLink result = new global::IPS.UMLSPF.EsHija(sourceAccepted, targetAccepted);
if (DslModeling::DomainClassInfo.HasNameProperty(result))
{
DslModeling::DomainClassInfo.SetUniqueName(result);
}
return(result);
}
}
}
global::System.Diagnostics.Debug.Fail("Having agreed that the connection can be accepted we should never fail to make one.");
throw new global::System.InvalidOperationException();
}
public static bool CanAcceptSourceAndTarget(DslModeling::ModelElement candidateSource, DslModeling::ModelElement candidateTarget)
{
// Accepts null, null; source, null; source, target but NOT null, target
if (candidateSource == null)
{
if (candidateTarget != null)
{
throw new global::System.ArgumentNullException("candidateSource");
}
else // Both null
{
return(false);
}
}
bool acceptSource = CanAcceptSource(candidateSource);
// If the source wasn't accepted then there's no point checking targets.
// If there is no target then the source controls the accept.
if (!acceptSource || candidateTarget == null)
{
return(acceptSource);
}
else // Check combinations
{
if (candidateSource is global::IPS.UMLSPF.Herencia)
{
if (candidateTarget is global::IPS.UMLSPF.Clase)
{
global::IPS.UMLSPF.Herencia sourceHerencia = (global::IPS.UMLSPF.Herencia)candidateSource;
global::IPS.UMLSPF.Clase targetClase = (global::IPS.UMLSPF.Clase)candidateTarget;
if (sourceHerencia == null || global::IPS.UMLSPF.EsPadre.GetLinkToClasePadre(sourceHerencia) != null)
{
return(false);
}
if (targetClase == null || sourceHerencia == null || global::IPS.UMLSPF.EsPadre.GetLinks(sourceHerencia, targetClase).Count > 0)
{
return(false);
}
return(true);
}
}
}
return(false);
}