@Override
  public void writeBloom(ExtendedCell cell) throws IOException {
    super.writeBloom(getRowPrefixCell(cell));
  }
Handles ROWPREFIX bloom related context. It works with both ByteBufferedCell and byte[] backed
cells
hbase-server/src/main/java/org/apache/hadoop/hbase/util/RowPrefixFixedLengthBloomContext.java