CLucene - a full-featured, c++ search engine
API Documentation

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FieldDocSortedHitQueue.h

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/*------------------------------------------------------------------------------
* 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.
------------------------------------------------------------------------------*/
#ifndef _lucene_search_FieldDocSortedHitQueue_
#define _lucene_search_FieldDocSortedHitQueue_

#if defined(_LUCENE_PRAGMA_ONCE)
# pragma once
#endif

#include "Sort.h"
#include "CLucene/util/PriorityQueue.h"

CL_NS_DEF(search)


class FieldDoc: LUCENE_BASE {
public:
        //FieldDoc did inherit from ScoreDoc, but now we make the scoredoc a member
        struct ScoreDoc scoreDoc;

        CL_NS(util)::Comparable** fields;

        FieldDoc (int32_t doc, float_t score);
        FieldDoc (int32_t doc, float_t score, CL_NS(util)::Comparable** fields);
    ~FieldDoc();
};

class FieldDocSortedHitQueue: 
        public CL_NS(util)::PriorityQueue<FieldDoc*,CL_NS(util)::Deletor::Object<FieldDoc> > 
{
private:
    DEFINE_MUTEX(THIS_LOCK)

        // this cannot contain AUTO fields - any AUTO fields should
        // have been resolved by the time this class is used.
        SortField** fields;
        int32_t fieldsLen;
        
        void _countsize(){
                fieldsLen=0;
                while(fields[fieldsLen]!=NULL)
                        fieldsLen++;
        }

        // used in the case where the fields are sorted by locale
        // based strings
        //todo: not implemented in clucene because locales has not been implemented
        //Collator[] collators; //volatile 

public:
        FieldDocSortedHitQueue (SortField** fields, int32_t size);
    ~FieldDocSortedHitQueue();


        void setFields (SortField** fields);

        SortField** getFields() {
                return fields;
        }

protected:
        bool lessThan (FieldDoc* docA, FieldDoc* docB);
};


class TopFieldDocs: public TopDocs {
public:
        SortField** fields;

        FieldDoc** fieldDocs;

  TopFieldDocs (int32_t totalHits, FieldDoc** fieldDocs, int32_t scoreDocsLen, SortField** fields);
        ~TopFieldDocs();
};

CL_NS_END
#endif

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