mirror of https://gitee.com/bigwinds/arangodb
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Michael Hackstein
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_VOCBASE_PHYSICAL_COLLECTION_H
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#define ARANGOD_VOCBASE_PHYSICAL_COLLECTION_H 1
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#include "Basics/Common.h"
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#include "VocBase/DatafileDescription.h"
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#include "VocBase/voc-types.h"
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#include <velocypack/Builder.h>
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struct TRI_datafile_t;
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struct TRI_df_marker_t;
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namespace arangodb {
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class LogicalCollection;
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class PhysicalCollection {
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protected:
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PhysicalCollection(LogicalCollection* collection) : _logicalCollection(collection) {}
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public:
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virtual ~PhysicalCollection() = default;
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virtual TRI_voc_rid_t revision() const = 0;
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// Used for Transaction rollback
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virtual void setRevision(TRI_voc_rid_t revision, bool force) = 0;
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virtual int64_t initialCount() const = 0;
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virtual void figures(std::shared_ptr<arangodb::velocypack::Builder>&) = 0;
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virtual int close() = 0;
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virtual int applyForTickRange(TRI_voc_tick_t dataMin, TRI_voc_tick_t dataMax,
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std::function<bool(TRI_voc_tick_t foundTick, TRI_df_marker_t const* marker)> const& callback) = 0;
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/// @brief rotate the active journal - will do nothing if there is no journal
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virtual int rotateActiveJournal() = 0;
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/// @brief sync the active journal - will do nothing if there is no journal
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/// or if the journal is volatile
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virtual int syncActiveJournal() = 0;
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/// @brief reserve space in the current journal. if no create exists or the
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/// current journal cannot provide enough space, close the old journal and
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/// create a new one
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virtual int reserveJournalSpace(TRI_voc_tick_t tick, TRI_voc_size_t size,
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char*& resultPosition, TRI_datafile_t*& resultDatafile) = 0;
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/// @brief create compactor file
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virtual TRI_datafile_t* createCompactor(TRI_voc_fid_t fid, TRI_voc_size_t maximalSize) = 0;
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/// @brief close an existing compactor
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virtual int closeCompactor(TRI_datafile_t* datafile) = 0;
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/// @brief replace a datafile with a compactor
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virtual int replaceDatafileWithCompactor(TRI_datafile_t* datafile, TRI_datafile_t* compactor) = 0;
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virtual bool removeCompactor(TRI_datafile_t*) = 0;
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virtual bool removeDatafile(TRI_datafile_t*) = 0;
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/// @brief seal a datafile
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virtual int sealDatafile(TRI_datafile_t* datafile, bool isCompactor) = 0;
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/// @brief creates a datafile
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virtual TRI_datafile_t* createDatafile(TRI_voc_fid_t fid,
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TRI_voc_size_t journalSize,
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bool isCompactor) = 0;
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/// @brief closes the datafiles passed in the vector
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virtual bool closeDatafiles(std::vector<TRI_datafile_t*> const& files) = 0;
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/// @brief iterates over a collection
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virtual bool iterateDatafiles(std::function<bool(TRI_df_marker_t const*, TRI_datafile_t*)> const& cb) = 0;
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virtual std::vector<DatafileDescription> datafilesInRange(TRI_voc_tick_t dataMin, TRI_voc_tick_t dataMax) = 0;
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protected:
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LogicalCollection* _logicalCollection;
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};
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} // namespace arangodb
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#endif
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