CMask.h

// SPDX-License-Identifier: LGPL-2.1-or-later OR GPL-2.0-or-later OR GPL-3.0-or-later OR LicenseRef-ImtCore-Commercial
#pragma once
 
 
// Qt includes
#include <QtCore/QMap>
 
// ImtCore includes
#include <imtmdbx/IMask.h>
#include <imtmdbx/CDocumentTable.h>
 
 
namespace imtmdbx
{
 
 
extern int getItemCount;
 
class CMask: virtual public IMask, public CDocumentTable
{
public:
       CMask(
              const QString& name,
              mdbx::txn_managed& txn,
              mdbx::key_mode keyMode = mdbx::key_mode::ordinal,
              mdbx::value_mode valueMode = mdbx::value_mode::single,
              bool hasIndex = false);
 
       // reimplemented (imtmdbx::IMask)
       virtual bool GetUnit(quint64 position) override;
       virtual bool SetUnit(quint64 position, bool unit) override;
 
protected:
       // reimplemented (imtmdbx::IMask)
       virtual bool GetItem(quint64 offset, quint64& item) override;
       virtual bool SetItem(quint64 offset, quint64 item) override;
       virtual bool GetNearestOffset(quint64& offset, quint64 startOffset = 0) override;
       virtual bool GetNextItemOffset(quint64& offset, quint64 startOffset = -1) override;
       virtual bool GetPreviosItemOffset(quint64& offset, quint64 startOffset = 0xffffffff) override;
 
protected:
       QMap<quint64,quint64> m_cache;
};
 
 
} // namespace imtmdbx