Interface CollectorManager<C extends Collector,​T>

  • All Known Implementing Classes:
    MultiCollectorManager, TotalHitCountCollectorManager

    public interface CollectorManager<C extends Collector,​T>
    A manager of collectors. This class is useful to parallelize execution of search requests and has two main methods:
    • newCollector() which must return a NEW collector which will be used to collect a certain set of leaves.
    • reduce(Collection) which will be used to reduce the results of individual collections into a meaningful result. This method is only called after all leaves have been fully collected.
    See Also:, CollectorManager)
    WARNING: This API is experimental and might change in incompatible ways in the next release.