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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_Compare_
#define _lucene_search_Compare_
#if defined(_LUCENE_PRAGMA_ONCE)
# pragma once
#endif
#include "FieldSortedHitQueue.h"
CL_NS_DEF(search)
class ScoreDocComparators:LUCENE_BASE {
protected:
ScoreDocComparators(){}
public:
~ScoreDocComparators(){
}
class Relevance:public ScoreDocComparator {
public:
int32_t compare (struct ScoreDoc* i, struct ScoreDoc* j) {
if (i->score > j->score) return -1;
if (i->score < j->score) return 1;
return 0;
}
CL_NS(util)::Comparable* sortValue (struct ScoreDoc* i) {
return _CLNEW CL_NS(util)::Compare::Float (i->score);
}
int32_t sortType() {
return SortField::DOCSCORE;
}
};
class IndexOrder:public ScoreDocComparator{
public:
IndexOrder():
ScoreDocComparator()
{
}
int32_t compare (struct ScoreDoc* i, struct ScoreDoc* j) {
if (i->doc < j->doc) return -1;
if (i->doc > j->doc) return 1;
return 0;
}
CL_NS(util)::Comparable* sortValue (struct ScoreDoc* i) {
return _CLNEW CL_NS(util)::Compare::Int32(i->doc);
}
int32_t sortType() {
return SortField::DOC;
}
};
class String: public ScoreDocComparator {
FieldCache::StringIndex* index;
#ifdef _CL__CND_DEBUG
int32_t length;
#endif
public:
String(FieldCache::StringIndex* index, int32_t len)
{
#ifdef _CL__CND_DEBUG
this->length = len;
#endif
this->index = index;
}
int32_t compare (struct ScoreDoc* i, struct ScoreDoc* j) {
CND_PRECONDITION(i->doc<length, "i->doc>=length")
CND_PRECONDITION(j->doc<length, "j->doc>=length")
if (index->order[i->doc] < index->order[j->doc]) return -1;
if (index->order[i->doc] > index->order[j->doc]) return 1;
return 0;
}
CL_NS(util)::Comparable* sortValue (struct ScoreDoc* i) {
return _CLNEW CL_NS(util)::Compare::TChar(index->lookup[index->order[i->doc]]);
}
int32_t sortType() {
return SortField::STRING;
}
};
class Int32:public ScoreDocComparator{
int32_t* fieldOrder;
#ifdef _CL__CND_DEBUG
int32_t length;
#endif
public:
Int32(int32_t* fieldOrder, int32_t len)
{
this->fieldOrder = fieldOrder;
#ifdef _CL__CND_DEBUG
this->length = len;
#endif
}
int32_t compare (struct ScoreDoc* i, struct ScoreDoc* j) {
CND_PRECONDITION(i->doc<length, "i->doc>=length")
CND_PRECONDITION(j->doc<length, "j->doc>=length")
if (fieldOrder[i->doc] < fieldOrder[j->doc]) return -1;
if (fieldOrder[i->doc] > fieldOrder[j->doc]) return 1;
return 0;
}
CL_NS(util)::Comparable* sortValue (struct ScoreDoc* i) {
CND_PRECONDITION(i->doc<length, "i->doc>=length")
return _CLNEW CL_NS(util)::Compare::Int32(fieldOrder[i->doc]);
}
int32_t sortType() {
return SortField::INT;
}
};
class Float:public ScoreDocComparator {
qreal* fieldOrder;
#ifdef _CL__CND_DEBUG
int32_t length;
#endif
public:
Float(qreal* fieldOrder, int32_t len)
{
this->fieldOrder = fieldOrder;
#ifdef _CL__CND_DEBUG
this->length = len;
#endif
}
int32_t compare (struct ScoreDoc* i, struct ScoreDoc* j) {
CND_PRECONDITION(i->doc<length, "i->doc>=length")
CND_PRECONDITION(j->doc<length, "j->doc>=length")
if (fieldOrder[i->doc] < fieldOrder[j->doc]) return -1;
if (fieldOrder[i->doc] > fieldOrder[j->doc]) return 1;
return 0;
}
CL_NS(util)::Comparable* sortValue (struct ScoreDoc* i) {
CND_PRECONDITION(i->doc<length, "i->doc>=length")
return _CLNEW CL_NS(util)::Compare::Float(fieldOrder[i->doc]);
}
int32_t sortType() {
return SortField::FLOAT;
}
};
};
CL_NS_END
#endif
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