d057e8326d
Summary: - Changed MergeOperator, CompactionFilter, and CompactionFilterFactory into Customizable classes. - Added Options/Configurable/Object Registration for TTL and Cassandra variants - Changed the StringAppend MergeOperators to accept a string delimiter rather than a simple char. Made the delimiter into a configurable option - Added tests for new functionality Pull Request resolved: https://github.com/facebook/rocksdb/pull/8481 Reviewed By: zhichao-cao Differential Revision: D30136050 Pulled By: mrambacher fbshipit-source-id: 271d1772835935b6773abaf018ee71e42f9491af
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
// 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).
|
|
|
|
#pragma once
|
|
#include <cinttypes>
|
|
|
|
#include "rocksdb/rocksdb_namespace.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
class ObjectLibrary;
|
|
namespace cassandra {
|
|
struct CassandraOptions {
|
|
static const char* kName() { return "CassandraOptions"; }
|
|
CassandraOptions(int32_t _gc_grace_period_in_seconds, size_t _operands_limit,
|
|
bool _purge_ttl_on_expiration = false)
|
|
: operands_limit(_operands_limit),
|
|
gc_grace_period_in_seconds(_gc_grace_period_in_seconds),
|
|
purge_ttl_on_expiration(_purge_ttl_on_expiration) {}
|
|
// Limit on the number of merge operands.
|
|
size_t operands_limit;
|
|
|
|
// How long (in seconds) tombstoned data remains before it is purged
|
|
int32_t gc_grace_period_in_seconds;
|
|
|
|
// If is set to true, expired data will be directly purged.
|
|
// Otherwise expired data will be converted tombstones first,
|
|
// then be eventually removed after gc grace period. This value should
|
|
// only true if all writes have same ttl setting, otherwise it could bring old
|
|
// data back.
|
|
bool purge_ttl_on_expiration;
|
|
};
|
|
#ifndef ROCKSDB_LITE
|
|
extern "C" {
|
|
int RegisterCassandraObjects(ObjectLibrary& library, const std::string& arg);
|
|
} // extern "C"
|
|
#endif // ROCKSDB_LITE
|
|
} // namespace cassandra
|
|
} // namespace ROCKSDB_NAMESPACE
|