QMqttTopicName Class

The QMqttTopicName class represents a MQTT topic name. 更多...

头：	#include <QMqttTopicName>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Mqtt) target_link_libraries(mytarget PRIVATE Qt6::Mqtt)
qmake:	QT += mqtt

• 所有成员列表，包括继承成员
• QMqttTopicName is part of 隐式共享类 .

注意： 此类的所有函数 可重入 .

公共函数

	QMqttTopicName (const QString & name = QString())
	QMqttTopicName (const QLatin1String & name )
	QMqttTopicName (const QMqttTopicName & name )
	~QMqttTopicName ()
bool	isValid () const
int	levelCount () const
QStringList	levels () const
QString	name () const
void	setName (const QString & name )
void	swap (QMqttTopicName & other )
QMqttTopicName &	operator= (const QMqttTopicName & name )

相关非成员

bool	operator!= (const QMqttTopicName & lhs , const QMqttTopicName & rhs )
bool	operator< (const QMqttTopicName & lhs , const QMqttTopicName & rhs )
QDataStream &	operator<< (QDataStream & out , const QMqttTopicName & name )
bool	operator== (const QMqttTopicName & lhs , const QMqttTopicName & rhs )
QDataStream &	operator>> (QDataStream & in , QMqttTopicName & name )

详细描述

QMqttTopicName is a thin wrapper around a QString providing an expressive data type for MQTT topic names. Beside the benefits of having a strong type preventing unintended misuse, QMqttTopicName provides convenient functions related to topic names like isValid () 或 levels ().

另请参阅 QMqttTopicFilter .

成员函数文档编制

QMqttTopicName:: QMqttTopicName (const QString & name = QString())

Creates a new MQTT topic name with the specified name .

QMqttTopicName:: QMqttTopicName (const QLatin1String & name )

Creates a new MQTT topic name with the specified name .

QMqttTopicName:: QMqttTopicName (const QMqttTopicName & name )

Creates a new MQTT topic name as a copy of name .

[noexcept] QMqttTopicName:: ~QMqttTopicName ()

销毁 QMqttTopicName 对象。

bool QMqttTopicName:: isValid () const

返回 true if the topic name is valid according to the MQTT standard section 4.7, or false 否则。

int QMqttTopicName:: levelCount () const

Returns the total number of topic levels.

QStringList QMqttTopicName:: levels () const

Returns the topic levels.

QString QMqttTopicName:: name () const

Returns the topic name.

另请参阅 setName ().

void QMqttTopicName:: setName (const QString & name )

Sets the topic name to name .

另请参阅 name ().

[noexcept] void QMqttTopicName:: swap ( QMqttTopicName & other )

Swaps the MQTT topic name other with this MQTT topic name. This operation is very fast and never fails.

QMqttTopicName &QMqttTopicName:: operator= (const QMqttTopicName & name )

Assigns the MQTT topic name name to this object, and returns a reference to the copy.

相关非成员

[noexcept] bool operator!= (const QMqttTopicName & lhs , const QMqttTopicName & rhs )

返回 true if the topic names lhs and rhs 不同，否则返回 false .

[noexcept] bool operator< (const QMqttTopicName & lhs , const QMqttTopicName & rhs )

返回 true if the topic name lhs is lexically less than the topic name rhs ；否则返回 false .

QDataStream & operator<< ( QDataStream & out , const QMqttTopicName & name )

Writes the topic name name 到流 out 并返回流引用。

另请参阅 QDataStream 运算符格式 .

[noexcept] bool operator== (const QMqttTopicName & lhs , const QMqttTopicName & rhs )

返回 true if the topic names lhs and rhs 相等，否则返回 false .

QDataStream & operator>> ( QDataStream & in , QMqttTopicName & name )

Reads a topic name into name 从流 in 并返回流引用。

另请参阅 QDataStream 运算符格式 .

内容

• 公共函数

• 相关非成员

• 详细描述