// construct the list of objects on the C-side that would be deleted if
// elementToBeDeleted were to be deleted (C-side EntityTypes and Associations only)
private static IEnumerable <EFObject> ConceptualObjectsToBeDeleted(EFElement elementToBeDeleted)
{
var cSideObjectsThatWouldBeDeleted = new HashSet <EFObject>();
var cetToBeDeleted = elementToBeDeleted as ConceptualEntityType;
var assocToBeDeleted = elementToBeDeleted as Association;
//
if (null != cetToBeDeleted)
{
// add the C-side EntityType itself
cSideObjectsThatWouldBeDeleted.Add(cetToBeDeleted);
// add the C-side EntitySet that references cetToBeDeleted (if any)
cSideObjectsThatWouldBeDeleted.UnionWith(cetToBeDeleted.GetAntiDependenciesOfType <ConceptualEntitySet>());
// add any Associations referred to by cetToBeDeleted
var assocsToBeDeleted = DeleteEntityTypeCommand.GetListOfAssociationsToBeDeleted(cetToBeDeleted);
cSideObjectsThatWouldBeDeleted.UnionWith(assocsToBeDeleted);
// add any AssociationSets referred to by the Associations
foreach (var assoc in assocsToBeDeleted)
{
cSideObjectsThatWouldBeDeleted.UnionWith(assoc.GetAntiDependenciesOfType <AssociationSet>());
}
}
if (null != assocToBeDeleted &&
assocToBeDeleted.EntityModel.IsCSDL)
{
// add the C-side Association itself
cSideObjectsThatWouldBeDeleted.Add(assocToBeDeleted);
// add any AssociationSets referred to by the Association
cSideObjectsThatWouldBeDeleted.UnionWith(assocToBeDeleted.GetAntiDependenciesOfType <AssociationSet>());
}
return(cSideObjectsThatWouldBeDeleted);
}
internal override DeleteEFElementCommand GetDeleteCommand()
{
DeleteEFElementCommand cmd = new DeleteEntityTypeCommand(this);
if (cmd == null)
{
// shouldn't happen, just to be safe
throw new InvalidOperationException();
}
return cmd;
}
