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//
// C++ Interface: strategies
//
// Description:
//
//
// Author: Andrea Rizzi <rizzi@kde.org>, (C) 2003
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef DBSE2_STRATEGIES_H
#define DBSE2_STRATEGIES_H
#include "database.h"
#include "chunk.h"
#include <tqobject.h>
class AbstractSearchAlgorithm : public TQObject
{
TQ_OBJECT
public:
typedef TQValueList<QueryResult> ResultList;
AbstractSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets)
{
di=dbi;
settings=sets;
}
/**
* this contains the algo and return some results.
*/
virtual DataBaseInterface::ResultList exec(const TQString& query)=0;
signals:
void newResult(QueryResult);
protected:
DataBaseInterface *di;
DBSESettings *settings;
};
class ExactSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
ExactSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) : AbstractSearchAlgorithm(dbi,sets) {}
virtual DataBaseInterface::ResultList exec(const TQString& query);
};
class AlphaSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
AlphaSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) : AbstractSearchAlgorithm(dbi,sets) {}
virtual DataBaseInterface::ResultList exec(const TQString& query);
};
class SentenceArchiveSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
SentenceArchiveSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) ;
virtual DataBaseInterface::ResultList exec(const TQString& query);
};
class ChunkByChunkSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
ChunkByChunkSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets);
virtual DataBaseInterface::ResultList exec(const TQString& query);
void setChunkFactory(AbstractChunkFactory *_factory)
{
factory=_factory;
}
protected:
AbstractChunkFactory *factory;
};
class FuzzyChunkSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
FuzzyChunkSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets);
virtual DataBaseInterface::ResultList exec(const TQString& query);
void setChunkFactory(AbstractChunkFactory *_factory)
{
factory=_factory;
}
protected:
AbstractChunkFactory *factory;
};
class GenericSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
GenericSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) ;
virtual ResultList exec(const TQString& query);
void addAlgorithm(AbstractSearchAlgorithm *algo);
void setMaxResultNumber(uint num){maxResults=num;}
protected:
TQValueList<AbstractSearchAlgorithm *> algoChain;
uint maxResults;
};
class CorrelationSearchAlgorithm : public AbstractSearchAlgorithm
{
TQ_OBJECT
public:
CorrelationSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets) : AbstractSearchAlgorithm(dbi,sets) {}
virtual ResultList exec(const TQString& query);
};
class SingleWordSearchAlgorithm : public GenericSearchAlgorithm
{
TQ_OBJECT
public:
SingleWordSearchAlgorithm(DataBaseInterface *dbi,DBSESettings *sets);
virtual DataBaseInterface::ResultList exec(const TQString& query);
private:
ExactSearchAlgorithm exact;
AlphaSearchAlgorithm alpha;
SentenceArchiveSearchAlgorithm sentence;
CorrelationSearchAlgorithm corr;
ChunkByChunkSearchAlgorithm chunk;
CaseBasedWordChunkFactory casefactory;
};
class UpdateChunkIndexAlgorithm
{
};
#endif //DBSE2_STRATEGIES_H
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