private void sanityCheck(ExtendedCell cell) throws IOException {
    if (this.getLastCell() != null) {
      if (comparator.compare(cell, this.getLastCell()) <= 0) {
        throw new IOException("Added a key not lexically larger than" + " previous. Current cell = "
          + cell + ", prevCell = " + this.getLastCell());
      }
    }
  }
Bloom information from the cell is retrieved
hbase-server/src/main/java/org/apache/hadoop/hbase/util/BloomContext.java