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Sourcecode: qt4-x11 version File versions

QueryFilter.cpp

/*------------------------------------------------------------------------------
* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
* 
* Distributable under the terms of either the Apache License (Version 2.0) or 
* the GNU Lesser General Public License, as specified in the COPYING file.
------------------------------------------------------------------------------*/
#include "CLucene/StdHeader.h"
#include "QueryFilter.h"
#include "IndexSearcher.h"

CL_NS_DEF(search)
CL_NS_USE(util)
CL_NS_USE(index)


QueryFilter::QueryFilter( const Query* query )
{
      this->query = query->clone();
}


QueryFilter::~QueryFilter()
{
      _CLDELETE( query );
}


QueryFilter::QueryFilter( const QueryFilter& copy )
{
      this->query = copy.query->clone();
}


Filter* QueryFilter::clone() const {
      return _CLNEW QueryFilter(*this );
}


TCHAR* QueryFilter::toString()
{
      TCHAR* qt = query->toString();
      size_t len = _tcslen(qt) + 14;
      TCHAR* ret = _CL_NEWARRAY( TCHAR, len );
      ret[0] = 0;
      _sntprintf( ret, len, _T("QueryFilter(%s)"), qt );
      _CLDELETE_CARRAY(qt);
      return ret;
}


/** Returns a BitSet with true for documents which should be permitted in
search results, and false for those that should not. */
BitSet* QueryFilter::bits( IndexReader* reader )
{
    BitSet* bits = _CLNEW BitSet(reader->maxDoc());

      IndexSearcher s(reader);
      QFHitCollector hc(bits);
      s._search(query, NULL, &hc);
    return bits;
}


QueryFilter::QFHitCollector::QFHitCollector(CL_NS(util)::BitSet* bits){
      this->bits = bits;
}

void QueryFilter::QFHitCollector::collect(const int32_t doc, const float_t score) {
      bits->set(doc);  // set bit for hit
}


CL_NS_END

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