Class IndexWriter.IndexReaderWarmer

  • Direct Known Subclasses:
    SimpleMergedSegmentWarmer
    Enclosing class:
    IndexWriter

    public abstract static class IndexWriter.IndexReaderWarmer
    extends Object
    If DirectoryReader.open(IndexWriter,boolean) has been called (ie, this writer is in near real-time mode), then after a merge completes, this class can be invoked to warm the reader on the newly merged segment, before the merge commits. This is not required for near real-time search, but will reduce search latency on opening a new near real-time reader after a merge completes.
    • Constructor Detail

      • IndexReaderWarmer

        protected IndexReaderWarmer()
        Sole constructor. (For invocation by subclass constructors, typically implicit.)