mirror of https://github.com/facebook/rocksdb.git
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
//
|
|
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
|
|
#pragma once
|
|
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
#include "db/table_properties_collector.h"
|
|
#include "rocksdb/options.h"
|
|
#include "rocksdb/table_properties.h"
|
|
#include "util/mutable_cf_options.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class Slice;
|
|
class Status;
|
|
|
|
struct TableBuilderOptions {
|
|
TableBuilderOptions(
|
|
const ImmutableCFOptions& _ioptions,
|
|
const InternalKeyComparator& _internal_comparator,
|
|
const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
|
|
_int_tbl_prop_collector_factories,
|
|
CompressionType _compression_type,
|
|
const CompressionOptions& _compression_opts, bool _skip_filters)
|
|
: ioptions(_ioptions),
|
|
internal_comparator(_internal_comparator),
|
|
int_tbl_prop_collector_factories(_int_tbl_prop_collector_factories),
|
|
compression_type(_compression_type),
|
|
compression_opts(_compression_opts),
|
|
skip_filters(_skip_filters) {}
|
|
const ImmutableCFOptions& ioptions;
|
|
const InternalKeyComparator& internal_comparator;
|
|
const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
|
|
int_tbl_prop_collector_factories;
|
|
CompressionType compression_type;
|
|
const CompressionOptions& compression_opts;
|
|
bool skip_filters = false;
|
|
};
|
|
|
|
// TableBuilder provides the interface used to build a Table
|
|
// (an immutable and sorted map from keys to values).
|
|
//
|
|
// Multiple threads can invoke const methods on a TableBuilder without
|
|
// external synchronization, but if any of the threads may call a
|
|
// non-const method, all threads accessing the same TableBuilder must use
|
|
// external synchronization.
|
|
class TableBuilder {
|
|
public:
|
|
// REQUIRES: Either Finish() or Abandon() has been called.
|
|
virtual ~TableBuilder() {}
|
|
|
|
// Add key,value to the table being constructed.
|
|
// REQUIRES: key is after any previously added key according to comparator.
|
|
// REQUIRES: Finish(), Abandon() have not been called
|
|
virtual void Add(const Slice& key, const Slice& value) = 0;
|
|
|
|
// Return non-ok iff some error has been detected.
|
|
virtual Status status() const = 0;
|
|
|
|
// Finish building the table.
|
|
// REQUIRES: Finish(), Abandon() have not been called
|
|
virtual Status Finish() = 0;
|
|
|
|
// Indicate that the contents of this builder should be abandoned.
|
|
// If the caller is not going to call Finish(), it must call Abandon()
|
|
// before destroying this builder.
|
|
// REQUIRES: Finish(), Abandon() have not been called
|
|
virtual void Abandon() = 0;
|
|
|
|
// Number of calls to Add() so far.
|
|
virtual uint64_t NumEntries() const = 0;
|
|
|
|
// Size of the file generated so far. If invoked after a successful
|
|
// Finish() call, returns the size of the final generated file.
|
|
virtual uint64_t FileSize() const = 0;
|
|
|
|
// If the user defined table properties collector suggest the file to
|
|
// be further compacted.
|
|
virtual bool NeedCompact() const { return false; }
|
|
|
|
// Returns table properties
|
|
virtual TableProperties GetTableProperties() const = 0;
|
|
};
|
|
|
|
} // namespace rocksdb
|