private List<Change> _changes = new ArrayList<Change>();
@Override
public RefactoringStatus checkConditions(IProgressMonitor pm, CheckConditionsContext context) throws OperationCanceledException {
ResourceChangeChecker checker = (ResourceChangeChecker) context.getChecker(ResourceChangeChecker.class);
IResourceChangeDescriptionFactory deltaFactory= checker.getDeltaFactory();
Iterator<RefactoringInfo> infos = _refactoringInformations.iterator();
while (infos.hasNext()) {