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/* Copyright (C) 2004 J.F.Dockes
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _FILTSEQ_H_INCLUDED_
#define _FILTSEQ_H_INCLUDED_
#include "autoconfig.h"
#include <vector>
#include <string>
#include <memory>
#include "docseq.h"
class RclConfig;
/**
* A filtered sequence is created from another one by selecting entries
* according to the given criteria.
* Note that this class can only filter on mime type (or rclcatg) at the moment,
* and is only used for history. Normal query filtering is performed by adding a
* clause to the Xapian query.
*/
class DocSeqFiltered : public DocSeqModifier {
public:
DocSeqFiltered(RclConfig *conf, std::shared_ptr<DocSequence> iseq, DocSeqFiltSpec &filtspec);
virtual ~DocSeqFiltered() {}
DocSeqFiltered(const DocSeqFiltered&) = delete;
DocSeqFiltered& operator=(const DocSeqFiltered&) = delete;
virtual bool canFilter() override {return true;}
virtual bool setFiltSpec(const DocSeqFiltSpec &filtspec) override;
virtual bool getDoc(int num, Rcl::Doc &doc, std::string *sh = nullptr) override;
virtual int getResCnt() override {return m_seq->getResCnt();}
private:
RclConfig *m_config;
DocSeqFiltSpec m_spec;
std::vector<int> m_dbindices;
};
#endif /* _FILTSEQ_H_INCLUDED_ */
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