@Override
  public boolean needsCompaction(List<HStoreFile> filesCompacting) {
    return this.compactionPolicy.needsCompactions(this.storeFileManager, filesCompacting);
  }
The storage engine that implements the stripe-based store/compaction scheme.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StripeStoreEngine.java