1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
// Copyright Yahoo. 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;
}
};
}
|