There are 2 code examples for org.eclipse.jface.viewers.ViewerComparator.

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private boolean handleUpdatedNews(Set<NewsEvent> events){
  List<INews> updatedNews=new ArrayList<INews>(events.size());
  for (  NewsEvent event : events) {
    updatedNews.add(event.getEntity());
  }
  Pair<List<NewsEvent>,List<INews>> result=updateCache(events,updatedNews);
  final List<NewsEvent> visibleEvents=result.getFirst();
  List<INews> visibleNews=result.getSecond();
  if (visibleNews.isEmpty())   return false;
  if (canceled())   return false;
  if (fGrouping.needsRefresh(visibleEvents,true))   return true;
  if (fFeedView.isTableViewerVisible()) {
    ViewerComparator sorter=fTableViewer.getComparator();
    if (sorter instanceof NewsComparator && ((NewsComparator)sorter).needsRefresh(visibleEvents))     return true;
  }
  if (fFeedView.isTableViewerVisible())   fTableViewer.update(visibleNews.toArray(),null);
  if (fFeedView.isBrowserViewerVisible() && contains(fBrowserViewer.getInput(),visibleNews)) {
    Collection<NewsEvent> newsToUpdate=visibleEvents;
    if (visibleEvents.size() > 1) {
      NewsEvent event=findShowingEventFromBrowser(visibleEvents);
      if (event != null)       newsToUpdate=Collections.singleton(event);
    }
    fBrowserViewer.update(newsToUpdate);
  }
  return false;
}
 

private Object[] getSortedChildren(Object parent){
  Object[] result=getFilteredChildren(parent);
  if (fSorter != null) {
    result=result.clone();
    fSorter.sort(this,result);
  }
  return result;
}
 

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