| // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
| // This source code is licensed under both the GPLv2 (found in the |
| // COPYING file in the root directory) and Apache 2.0 License |
| // (found in the LICENSE.Apache file in the root 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); |
| } |