foundationdb/fdbclient/SimpleConfigTransaction.h

86 lines
3.5 KiB
C++

/*
* SimpleConfigTransaction.h
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <memory>
#include "fdbclient/CommitTransaction.h"
#include "fdbclient/ConfigTransactionInterface.h"
#include "fdbclient/CoordinationInterface.h"
#include "fdbclient/FDBTypes.h"
#include "fdbclient/IConfigTransaction.h"
#include "fdbclient/PImpl.h"
#include "flow/Error.h"
#include "flow/flow.h"
/*
* A configuration transaction implementation that interacts with a simple (test-only) implementation of
* the configuration database. All configuration database data is assumed to live on a single node
* (the lowest coordinator by IP address), so there is no fault tolerance.
*/
class SimpleConfigTransaction final : public IConfigTransaction, public FastAllocated<SimpleConfigTransaction> {
PImpl<class SimpleConfigTransactionImpl> impl;
public:
SimpleConfigTransaction(ConfigTransactionInterface const&);
SimpleConfigTransaction(Database const&);
SimpleConfigTransaction();
void construct(Database const&) override;
~SimpleConfigTransaction();
Future<Version> getReadVersion() override;
Optional<Version> getCachedReadVersion() const override;
Future<Optional<Value>> get(Key const& key, Snapshot = Snapshot::False) override;
Future<RangeResult> getRange(KeySelector const& begin,
KeySelector const& end,
int limit,
Snapshot = Snapshot::False,
Reverse = Reverse::False) override;
Future<RangeResult> getRange(KeySelector begin,
KeySelector end,
GetRangeLimits limits,
Snapshot = Snapshot::False,
Reverse = Reverse::False) override;
Future<MappedRangeResult> getMappedRange(KeySelector begin,
KeySelector end,
Key mapper,
GetRangeLimits limits,
int matchIndex,
Snapshot = Snapshot::False,
Reverse = Reverse::False) override {
throw client_invalid_operation();
}
Future<Void> commit() override;
Version getCommittedVersion() const override;
void setOption(FDBTransactionOptions::Option option, Optional<StringRef> value = Optional<StringRef>()) override;
Future<Void> onError(Error const& e) override;
void cancel() override;
void reset() override;
void debugTransaction(UID dID) override;
void checkDeferredError() const override;
int64_t getApproximateSize() const override;
void set(KeyRef const&, ValueRef const&) override;
void clear(KeyRangeRef const&) override { throw client_invalid_operation(); }
void clear(KeyRef const&) override;
void fullReset();
};