Module org.elasticsearch.server
Package org.elasticsearch.index.store

Interface PluggableDirectoryMetricsHolder<M extends DirectoryMetrics.PluggableMetrics<M>>

All Known Implementing Classes:
SingleThreadDirectoryMetricHolder, ThreadLocalDirectoryMetricHolder
public interface PluggableDirectoryMetricsHolder<M extends DirectoryMetrics.PluggableMetrics<M>>

  • Method Details

    • noop

      static <M extends DirectoryMetrics.PluggableMetrics<M>> PluggableDirectoryMetricsHolder<M> noop(M noopData)
      A utility to be used when no metrics are needed, intended to be used with a noop data implementation.

    • instance

      M instance()
      Get the instance to record metrics on.
      Returns:
      the instance to record metrics on.

    • singleThreaded

      PluggableDirectoryMetricsHolder<M> singleThreaded()
      Get an instance that can be used in a single threaded scope. This may be an instance optimized for single threaded use. It cannot be tied to a single thread, but can rely on external synchronization in case it is passed between threads.
      Returns:
      single threaded instance.