private TermRangeQuery createBeforeQuery(final Date beforeDate) {
   return new TermRangeQuery(
       DocumentConstants.COMMENT_UPDATED,
       null,
       dateSupport.getIndexedValue(beforeDate),
       true,
       true);
 }
 private TermRangeQuery createAfterQuery(final Date afterDate) {
   return new TermRangeQuery(
       DocumentConstants.COMMENT_UPDATED,
       dateSupport.getIndexedValue(afterDate),
       null,
       true,
       true);
 }