53 lines
1.6 KiB
Java
53 lines
1.6 KiB
Java
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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package org.rocksdb;
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/**
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* Enum CompactionStyle
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*
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* RocksDB supports different styles of compaction. Available
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* compaction styles can be chosen using this enumeration.
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*
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* <ol>
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* <li><strong>LEVEL</strong> - Level based Compaction style</li>
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* <li><strong>UNIVERSAL</strong> - Universal Compaction Style is a
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* compaction style, targeting the use cases requiring lower write
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* amplification, trading off read amplification and space
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* amplification.</li>
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* <li><strong>FIFO</strong> - FIFO compaction style is the simplest
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* compaction strategy. It is suited for keeping event log data with
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* very low overhead (query log for example). It periodically deletes
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* the old data, so it's basically a TTL compaction style.</li>
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* </ol>
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*
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* @see <a
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* href="https://github.com/facebook/rocksdb/wiki/Universal-Compaction">
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* Universal Compaction</a>
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* @see <a
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* href="https://github.com/facebook/rocksdb/wiki/FIFO-compaction-style">
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* FIFO Compaction</a>
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*/
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public enum CompactionStyle {
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LEVEL((byte) 0),
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UNIVERSAL((byte) 1),
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FIFO((byte) 2);
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private final byte value_;
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private CompactionStyle(byte value) {
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value_ = value;
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}
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/**
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* Returns the byte value of the enumerations value
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*
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* @return byte representation
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*/
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public byte getValue() {
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return value_;
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}
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}
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