mirror of https://github.com/facebook/rocksdb.git
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
// Copyright (c) Meta Platforms, Inc. and affiliates.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include <ostream>
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#include <string>
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#include "rocksdb/rocksdb_namespace.h"
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#include "rocksdb/wide_columns.h"
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namespace ROCKSDB_NAMESPACE {
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class WideColumnsHelper {
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public:
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static void DumpWideColumns(const WideColumns& columns, std::ostream& os,
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bool hex);
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static Status DumpSliceAsWideColumns(const Slice& value, std::ostream& os,
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bool hex);
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static bool HasDefaultColumn(const WideColumns& columns) {
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return !columns.empty() && columns.front().name() == kDefaultWideColumnName;
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}
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static bool HasDefaultColumnOnly(const WideColumns& columns) {
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return columns.size() == 1 &&
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columns.front().name() == kDefaultWideColumnName;
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}
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static const Slice& GetDefaultColumn(const WideColumns& columns) {
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assert(HasDefaultColumn(columns));
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return columns.front().value();
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}
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static void SortColumns(WideColumns& columns);
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};
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} // namespace ROCKSDB_NAMESPACE
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