Publication pub = documents.getDocuments()[0].getPublication();
siteManager = (SiteManager) selector.select(pub.getSiteManagerHint());
DocumentSet set = new DocumentSet(documents.getDocuments());
siteManager.sortAscending(set);
set.reverse();
DocumentVisitor visitor = new DeleteVisitor(this);
set.visit(visitor);
} catch (ServiceException e) {
throw new PublicationException(e);