org.rocksdb.StatisticsCollectorCallback Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of frocksdbjni Show documentation

RocksDB fat jar to use with Apache Flink that contains .so files for linux32 and linux64, jnilib files for Mac OSX, and a .dll for Windows x64.

There is a newer version: 5.17.2-artisans-2.0

Show newest version

// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.

package org.rocksdb;

/**
 * Callback interface provided to StatisticsCollector.
 *
 * Thread safety:
 * StatisticsCollector doesn't make any guarantees about thread safety.
 * If the same reference of StatisticsCollectorCallback is passed to multiple
 * StatisticsCollector references, then its the responsibility of the
 * user to make StatisticsCollectorCallback's implementation thread-safe.
 *
 */
public interface StatisticsCollectorCallback {
  /**
   * Callback function to get ticker values.
   * @param tickerType Ticker type.
   * @param tickerCount Value of ticker type.
  */
  void tickerCallback(TickerType tickerType, long tickerCount);

  /**
   * Callback function to get histogram values.
   * @param histType Histogram type.
   * @param histData Histogram data.
  */
  void histogramCallback(HistogramType histType, HistogramData histData);
}