protected StoreEngine<?, ?, ?, ?> createStoreEngine(HStore store, Configuration conf,
    CellComparator kvComparator) throws IOException {
    return StoreEngine.create(store, conf, kvComparator);
  }
Creates the store engine configured for the given Store.
@param store        The store. An unfortunate dependency needed due to it being passed to
                    coprocessors via the compactor.
@param conf         Store configuration.
@param kvComparator KVComparator for storeFileManager.
@return StoreEngine to use.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java