#include <NullValue.h>

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Public Member Functions
	NullValue ()

virtual Value *	clonePtr () const override

virtual bool	operator== (const Value &ref) const override

virtual bool	operator< (const Value &ref) const override

virtual Value &	operator= (const Value &val) override

virtual Value &	operator= (bool val) override

virtual Value &	operator= (int32_t val) override

virtual Value &	operator= (uint32_t val) override

virtual Value &	operator= (int64_t val) override

virtual Value &	operator= (double val) override

virtual Value &	operator= (const active::utility::String &val) override

virtual Value &	operator= (const active::utility::Guid &val) override

virtual Value &	operator= (const active::utility::Time &val) override

virtual	operator bool () const override

virtual	operator int32_t () const override

virtual	operator uint32_t () const override

virtual	operator int64_t () const override

virtual	operator double () const override

virtual	operator active::utility::String () const override

virtual	operator active::utility::Guid () const override

virtual	operator active::utility::Time () const override

virtual bool	isNull () const override

virtual Type	getType () const override

virtual void	setDefault () override

Public Member Functions inherited from active::setting::Value
	Value (Status stat=good)

virtual	~Value ()=default

bool	operator!= (const Value &ref) const

virtual Value &	operator= (const char *val)

virtual bool	isGood () const

Public Member Functions inherited from active::utility::Cloner
virtual	~Cloner ()=default

Additional Inherited Members
Public Types inherited from active::setting::Value
enum class	Status { undefined = 0 , bad , good }
	The value status (defines whether a value has been explicitly set and (if so) if it's meaningful.

enum class	Type { null = 0 , boolType , idType , intType , floatType , stringType , timeType }
	Supported value types (broad groups, e.g. int32_t and int64_t are both intType)

using	Unique = std::unique_ptr<Value>
	Unique pointer.

using	Shared = std::shared_ptr<Value>
	Shared pointer.

using	Option = std::optional<Value>
	Optional.

Static Public Member Functions inherited from active::setting::Value
static std::optional< Type >	typeFromName (const utility::String &text)

static utility::String	nameForType (Type type)

Public Attributes inherited from active::setting::Value
Status	status
	The value status.

Detailed Description

A class to represent a setting for a void (non-existant) value

This can be used in cases like JSON parsing where a value can be explicity assigned a 'null' (for example). The object will discard all assigned values without signalling an error, and returns null/empty responses for every value request

Constructor & Destructor Documentation

◆ NullValue()

active::setting::NullValue::NullValue ( )

inline

Default constructor

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Member Function Documentation

◆ clonePtr()

virtual Value * active::setting::NullValue::clonePtr ( ) const

inlineoverridevirtual

Clone method

Returns: A clone of this object

Implements active::setting::Value.

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◆ getType()

virtual Type active::setting::NullValue::getType ( ) const

inlineoverridevirtual

Get the value type

Returns: The value type

Implements active::setting::Value.

◆ isNull()

virtual bool active::setting::NullValue::isNull ( ) const

inlineoverridevirtual

Determine if the value is null, e.g. zero, empty, undefined

Returns: True if the value is null

Implements active::setting::Value.

◆ operator active::utility::Guid()

virtual active::setting::NullValue::operator active::utility::Guid ( ) const

inlineoverridevirtual

Get a guid value

Returns: A guid value

Implements active::setting::Value.

◆ operator active::utility::String()

virtual active::setting::NullValue::operator active::utility::String ( ) const

inlineoverridevirtual

Get a string value

Returns: A string value

Implements active::setting::Value.

◆ operator active::utility::Time()

virtual active::setting::NullValue::operator active::utility::Time ( ) const

inlineoverridevirtual

Get a time value

Returns: A time value

Implements active::setting::Value.

◆ operator bool()

virtual active::setting::NullValue::operator bool ( ) const

inlineoverridevirtual

Get a boolean value

Returns: A boolean value

Implements active::setting::Value.

◆ operator double()

virtual active::setting::NullValue::operator double ( ) const

inlineoverridevirtual

Get a double precision value

Returns: A double precision value

Implements active::setting::Value.

◆ operator int32_t()

virtual active::setting::NullValue::operator int32_t ( ) const

inlineoverridevirtual

Get a 32-bit integer value

Returns: A 32-bit integer value

Implements active::setting::Value.

◆ operator int64_t()

virtual active::setting::NullValue::operator int64_t ( ) const

inlineoverridevirtual

Get a 64-bit integer value

Returns: A 64-bit integer value

Implements active::setting::Value.

◆ operator uint32_t()

virtual active::setting::NullValue::operator uint32_t ( ) const

inlineoverridevirtual

Get an unsigned 32-bit integer value

Returns: An unsigned 32-bit integer value

Implements active::setting::Value.

◆ operator<()

virtual bool active::setting::NullValue::operator< ( const Value & ref ) const

inlineoverridevirtual

Less-than operator

Parameters

ref	A value to compare with this

Returns: True if this is less than ref

Implements active::setting::Value.

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◆ operator=() [1/9]

virtual Value & active::setting::NullValue::operator= ( bool val )

inlineoverridevirtual

Assignment operator

Parameters

val	A boolean value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [2/9]

virtual Value & active::setting::NullValue::operator= ( const active::utility::Guid & val )

inlineoverridevirtual

Assignment operator

Parameters

val	A guid value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [3/9]

virtual Value & active::setting::NullValue::operator= ( const active::utility::String & val )

inlineoverridevirtual

Assignment operator

Parameters

val	A string value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [4/9]

virtual Value & active::setting::NullValue::operator= ( const active::utility::Time & val )

inlineoverridevirtual

Assignment operator

Parameters

val	A time value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [5/9]

virtual Value & active::setting::NullValue::operator= ( const Value & val )

inlineoverridevirtual

Assignment operator

Parameters

val	A value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [6/9]

virtual Value & active::setting::NullValue::operator= ( double val )

inlineoverridevirtual

Assignment operator

Parameters

val	A double precision value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [7/9]

virtual Value & active::setting::NullValue::operator= ( int32_t val )

inlineoverridevirtual

Assignment operator

Parameters

val	A 32-bit integer value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [8/9]

virtual Value & active::setting::NullValue::operator= ( int64_t val )

inlineoverridevirtual

Assignment operator

Parameters

val	A 64-bit integer value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator=() [9/9]

virtual Value & active::setting::NullValue::operator= ( uint32_t val )

inlineoverridevirtual

Assignment operator

Parameters

val	An unsigned 32-bit integer value to assign

Returns: A reference to this

Implements active::setting::Value.

◆ operator==()

virtual bool active::setting::NullValue::operator== ( const Value & ref ) const

inlineoverridevirtual

Equality operator

Parameters

ref	A value to compare with this

Returns: True if this is identical to ref

Implements active::setting::Value.

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◆ setDefault()

virtual void active::setting::NullValue::setDefault ( )

inlineoverridevirtual

Set a default value

Implements active::setting::Value.

The documentation for this class was generated from the following file:

/Users/rwessel/Documents/Development/ActiveLib/Active/Setting/Values/NullValue.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NullValue()

Member Function Documentation

◆ clonePtr()

◆ getType()

◆ isNull()

◆ operator active::utility::Guid()

◆ operator active::utility::String()

◆ operator active::utility::Time()

◆ operator bool()

◆ operator double()

◆ operator int32_t()

◆ operator int64_t()

◆ operator uint32_t()

◆ operator<()

◆ operator=() [1/9]

◆ operator=() [2/9]

◆ operator=() [3/9]

◆ operator=() [4/9]

◆ operator=() [5/9]

◆ operator=() [6/9]

◆ operator=() [7/9]

◆ operator=() [8/9]

◆ operator=() [9/9]

◆ operator==()

◆ setDefault()