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/*
* Copyright 2012 Fabrice Colin
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _FIELD_MAPPER_INTERFACE_H
#define _FIELD_MAPPER_INTERFACE_H
#include <string>
#include <vector>
#include <map>
#include <utility>
#include "DocumentInfo.h"
#include "Visibility.h"
/// Interface implemented by field mappers.
class PINOT_EXPORT FieldMapperInterface
{
public:
FieldMapperInterface(const FieldMapperInterface &other) {};
virtual ~FieldMapperInterface() {};
/// Gets terms from the document and their prefixes.
virtual void getTerms(const DocumentInfo &docInfo,
std::vector<std::pair<std::string, std::string> > &prefixedTerms) = 0;
/// Gets values.
virtual void getValues(const DocumentInfo &docInfo,
std::map<unsigned int, std::string> &values) = 0;
/// Saves terms as record data.
virtual void toRecord(const DocumentInfo *pDocInfo,
std::string &record) = 0;
/// Retrieves terms from record data.
virtual void fromRecord(DocumentInfo *pDocInfo,
const std::string &record) = 0;
/// Returns whether terms with the prefix this filter corresponds to were escaped.
virtual bool isEscaped(const std::string &filterName) = 0;
/// Returns boolean query filters and their prefixes.
virtual void getBooleanFilters(std::map<std::string, std::string> &filters) = 0;
/// Returns the valuenumber to collapse on, if any.
virtual bool collapseOnValue(unsigned int &valueNumber) = 0;
protected:
FieldMapperInterface() { };
};
#endif // _FIELD_MAPPER_INTERFACE_H
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