void disableBloomFilterForTesting() {
    generalBloomFilter = null;
    this.deleteFamilyBloomFilter = null;
  }
The number of Bloom filter entries in this store file, or an estimate thereof, if the Bloom
filter is not loaded. This always returns an upper bound of the number of Bloom filter entries.
@return an estimate of the number of Bloom filter entries in this file
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileReader.java