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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchlib/common/fslimits.h>
#include <cstdint>
namespace search::fef {
class TermFieldMatchDataPositionKey
{
private:
uint32_t _elementId;
uint32_t _position;
public:
TermFieldMatchDataPositionKey()
: _elementId(0u),
_position(0u)
{ }
TermFieldMatchDataPositionKey(uint32_t elementId,
uint32_t position)
: _elementId(elementId),
_position(position)
{ }
uint32_t getElementId() const { return _elementId; }
uint32_t getPosition() const { return _position; }
void setElementId(uint32_t elementId) { _elementId = elementId; }
void setPosition(uint32_t position) { _position = position; }
bool operator<(const TermFieldMatchDataPositionKey &rhs) const {
if (_elementId != rhs._elementId) {
return _elementId < rhs._elementId;
}
return _position < rhs._position;
}
bool operator==(const TermFieldMatchDataPositionKey &rhs) const {
return ((_elementId == rhs._elementId) &&
(_position == rhs._position));
}
};
class TermFieldMatchDataPosition : public TermFieldMatchDataPositionKey
{
private:
int32_t _elementWeight;
uint32_t _elementLen;
double _matchExactness; // or possibly _matchWeight
public:
TermFieldMatchDataPosition()
: TermFieldMatchDataPositionKey(),
_elementWeight(1),
_elementLen(SEARCHLIB_FEF_UNKNOWN_FIELD_LENGTH),
_matchExactness(1.0)
{ }
const TermFieldMatchDataPositionKey &key() const {
return *this;
}
/**
* A comparator for sorting in natural (ascending) order but if
* positions are equal, sort best exactness first.
*/
static bool compareWithExactness(const TermFieldMatchDataPosition &a,
const TermFieldMatchDataPosition &b)
{
if (a < b) return true;
if (b < a) return false;
return a._matchExactness > b._matchExactness;
}
TermFieldMatchDataPosition(uint32_t elementId,
uint32_t position,
int32_t elementWeight,
uint32_t elementLen)
: TermFieldMatchDataPositionKey(elementId, position),
_elementWeight(elementWeight),
_elementLen(elementLen),
_matchExactness(1.0)
{ }
int32_t getElementWeight() const { return _elementWeight; }
uint32_t getElementLen() const { return _elementLen; }
double getMatchExactness() const { return _matchExactness; }
void setElementWeight(int32_t elementWeight) {
_elementWeight = elementWeight;
}
void setElementLen(uint32_t elementLen) {
_elementLen = elementLen;
}
TermFieldMatchDataPosition& setMatchExactness(double exactness) {
_matchExactness = exactness;
return *this;
}
};
}
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