// set changes on html response
for(Modification change : changes) {
switch ( change.getType() ) {
case MODIFY : response.onModified(change.getSource()); break;
case DELETE : response.onDeleted(change.getSource()); break;
case MOVE : response.onMoved(change.getSource(), change.getDestination()); break;
case COPY : response.onCopied(change.getSource(), change.getDestination()); break;
case CREATE : response.onCreated(change.getSource()); break;
case ORDER : response.onChange("ordered", change.getSource(), change.getDestination()); break;
default: