Review

finding-1

org/apache/lucene/index/DirectoryReader.java

ReaderCommit(SegmentInfos, Directory)

class DirectoryReader.ReaderCommit {
    ReaderCommit(SegmentInfos infos, Directory dir) throws IOException {
      segmentsFileName = infos.getCurrentSegmentFileName();
      this.dir = dir;
      userData = infos.getUserData();
      files = Collections.unmodifiableCollection(infos.files(dir, true));
      version = infos.getVersion();
      generation = infos.getGeneration();
      isOptimized = infos.size() == 1 && !infos.info(0).hasDeletions();
    }

}