public static RegionEventDescriptor getRegionEventDescriptor(Cell cell) throws IOException {
    return CellUtil.matchingColumnFamilyAndQualifierPrefix(cell, METAFAMILY, REGION_EVENT_PREFIX)
      ? RegionEventDescriptor.parseFrom(CellUtil.cloneValue(cell))
      : null;
  }
@return Returns a RegionEventDescriptor made by deserializing the content of the passed in
        <code>cell</code>, IFF the <code>cell</code> is a RegionEventDescriptor type WALEdit.
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALEdit.java