118 lines
4.2 KiB
C++
118 lines
4.2 KiB
C++
// Copyright (c) 2011-present, 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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#pragma once
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#ifndef ROCKSDB_LITE
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#include "db/db_impl.h"
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#include <vector>
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#include <string>
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namespace rocksdb {
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class DBImplReadOnly : public DBImpl {
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public:
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DBImplReadOnly(const DBOptions& options, const std::string& dbname);
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virtual ~DBImplReadOnly();
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// Implementations of the DB interface
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using DB::Get;
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virtual Status Get(const ReadOptions& options,
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ColumnFamilyHandle* column_family, const Slice& key,
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std::string* value) override;
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// TODO: Implement ReadOnly MultiGet?
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using DBImpl::NewIterator;
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virtual Iterator* NewIterator(const ReadOptions&,
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ColumnFamilyHandle* column_family) override;
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virtual Status NewIterators(
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const ReadOptions& options,
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const std::vector<ColumnFamilyHandle*>& column_families,
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std::vector<Iterator*>* iterators) override;
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using DBImpl::Put;
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virtual Status Put(const WriteOptions& options,
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ColumnFamilyHandle* column_family, const Slice& key,
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const Slice& value) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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using DBImpl::Merge;
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virtual Status Merge(const WriteOptions& options,
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ColumnFamilyHandle* column_family, const Slice& key,
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const Slice& value) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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using DBImpl::Delete;
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virtual Status Delete(const WriteOptions& options,
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ColumnFamilyHandle* column_family,
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const Slice& key) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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using DBImpl::SingleDelete;
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virtual Status SingleDelete(const WriteOptions& options,
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ColumnFamilyHandle* column_family,
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const Slice& key) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status Write(const WriteOptions& options,
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WriteBatch* updates) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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using DBImpl::CompactRange;
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virtual Status CompactRange(const CompactRangeOptions& options,
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ColumnFamilyHandle* column_family,
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const Slice* begin, const Slice* end) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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using DBImpl::CompactFiles;
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virtual Status CompactFiles(
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const CompactionOptions& compact_options,
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ColumnFamilyHandle* column_family,
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const std::vector<std::string>& input_file_names,
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const int output_level, const int output_path_id = -1) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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#ifndef ROCKSDB_LITE
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virtual Status DisableFileDeletions() override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status EnableFileDeletions(bool force) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status GetLiveFiles(std::vector<std::string>&,
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uint64_t* manifest_file_size,
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bool flush_memtable = true) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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#endif // ROCKSDB_LITE
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using DBImpl::Flush;
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virtual Status Flush(const FlushOptions& options,
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ColumnFamilyHandle* column_family) override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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using DBImpl::SyncWAL;
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virtual Status SyncWAL() override {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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private:
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friend class DB;
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// No copying allowed
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DBImplReadOnly(const DBImplReadOnly&);
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void operator=(const DBImplReadOnly&);
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};
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}
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#endif // !ROCKSDB_LITE
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