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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 _SORTSEQ_H_INCLUDED_
#define _SORTSEQ_H_INCLUDED_
#include "autoconfig.h"
#include <vector>
#include <string>
#include <memory>
#include "docseq.h"
/**
* A sorted sequence is created from the first N documents of another one,
* and sorts them according to the given criteria.
*/
class DocSeqSorted : public DocSeqModifier {
public:
DocSeqSorted(std::shared_ptr<DocSequence> iseq, DocSeqSortSpec &sortspec)
: DocSeqModifier(iseq) {
setSortSpec(sortspec);
}
virtual ~DocSeqSorted() {}
DocSeqSorted(const DocSeqSorted&) = delete;
DocSeqSorted& operator=(const DocSeqSorted&) = delete;
virtual bool canSort() override {return true;}
virtual bool setSortSpec(const DocSeqSortSpec &sortspec) override;
virtual bool getDoc(int num, Rcl::Doc &doc, std::string *sh = nullptr) override;
virtual int getResCnt() override {return int(m_docsp.size());}
private:
DocSeqSortSpec m_spec;
std::vector<Rcl::Doc> m_docs;
std::vector<Rcl::Doc *> m_docsp;
};
#endif /* _SORTSEQ_H_INCLUDED_ */
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