blob: b65475e6bb53640b26b4d817a34ca088bca00381 (
plain) (
blame)
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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* \class document::NumericFieldValue
* \ingroup fieldvalue
*
* \brief Templated parent class for field values of numbers.
*
* To prevent code duplication, numeric values are implemented using this
* template.
*/
#pragma once
#include "fieldvalue.h"
#include <vespa/vespalib/stllike/hash_fun.h>
namespace document {
class NumericFieldValueBase : public FieldValue
{
public:
void printXml(XmlOutputStream& out) const override;
protected:
NumericFieldValueBase(Type type) : FieldValue(type) {}
};
template<typename Number>
class NumericFieldValue : public NumericFieldValueBase {
protected:
explicit NumericFieldValue(Type type, Number value=0) : NumericFieldValueBase(type), _value(value) { }
Number _value;
public:
using value_type = Number;
value_type getValue() const { return _value; }
void setValue(Number newValue) { _value = newValue; }
FieldValue& assign(const FieldValue&) override ;
int compare(const FieldValue& other) const override;
int fastCompare(const FieldValue& other) const override final;
FieldValue& operator=(vespalib::stringref) override;
size_t hash() const override final { return vespalib::hash<Number>()(_value); }
char getAsByte() const override;
int32_t getAsInt() const override;
int64_t getAsLong() const override;
float getAsFloat() const override;
double getAsDouble() const override;
vespalib::string getAsString() const override;
void print(std::ostream& out, bool verbose, const std::string& indent) const override;
};
extern template class NumericFieldValue<float>;
extern template class NumericFieldValue<double>;
extern template class NumericFieldValue<int8_t>;
extern template class NumericFieldValue<int16_t>;
extern template class NumericFieldValue<int32_t>;
extern template class NumericFieldValue<int64_t>;
} // document
|
