code: public Query query(DecoratedKey partitionKey, RangeTombstone rangeTombstone) {
          BooleanQuery query = new BooleanQuery();
          query.add(partitionKeyMapper.query(partitionKey), MUST);
          query.add(clusteringKeyMapper.query(rangeTombstone.min, rangeTombstone.max), MUST);
          return query;
      }
docs: Returns the Lucene {@link Query} to get the {@link Document}s satisfying the specified partition key and {@link
  RangeTombstone}.
  
  @param partitionKey   A partition key.
  @param rangeTombstone A {@link RangeTombstone}.
  @return The Lucene {@link Query} to get the {@link Document}s satisfying the specified partition key and {@link
  RangeTombstone}.