def incr_doc_count(klass, count)
      klass = klass.to_s
      doc_count = @cassandra.get(:totals, klass, "doc_count").values.last.to_i
      doc_count += count
      @cassandra.insert(:totals, klass, {"doc_count" => doc_count.to_s})
      @klass_doc_counts[klass.to_sym] = doc_count
    end
def incr_doc_count(klass, count)
      klass = klass.to_s
      doc_count = @cassandra.get(:totals, klass, "doc_count").values.last.to_i
      doc_count += count
      @cassandra.insert(:totals, klass, {"doc_count" => doc_count.to_s})
      @klass_doc_counts[klass.to_sym] = doc_count
    end
Increment total document count for a given class by 'count'