CDoubleMask.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
 
// ImtCore includes
#include <imtmdbx/CMask.h>
#include <imtmdbx/imtmdbx.h>
 
 
namespace imtmdbx
{
 
 
class CDoubleMask: public CMask
{
public:
       CDoubleMask(const QString& name,
                            mdbx::txn_managed& txn,
                            quint32 externKey = 0,
                            mdbx::key_mode keyMode = mdbx::key_mode::ordinal,
                            mdbx::value_mode valueMode = mdbx::value_mode::single,
                            bool hasIndex = false);
 
protected:
       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;
 
public:
       virtual bool GetItem(quint64 offset, quint64& item) override;
       virtual bool SetItem(quint64 offset, quint64 item) override;
       bool SetExternalKey(quint64 externalKey);
 
private:
       quint64 m_externKey;
 
};
 
}//namespace imtmdbx