QOpcUaErrorState Class

QOpcUaErrorState allows investigation and interaction with error state from backends. 更多...

头：	#include <QOpcUaErrorState>
qmake:	QT += opcua
Since:	QtOpcUa 5.13

This class was introduced in QtOpcUa 5.13.

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公共类型

enum class

ConnectionStep { Unknown, CertificateValidation, OpenSecureChannel, CreateSession, ActivateSession }

公共函数

	QOpcUaErrorState (const QOpcUaErrorState & other )
QOpcUaErrorState &	operator= (const QOpcUaErrorState & rhs )
QOpcUaErrorState::ConnectionStep	connectionStep () const
QOpcUa::UaStatusCode	errorCode () const
bool	ignoreError () const
bool	isClientSideError () const
void	setClientSideError (bool clientSideError )
void	setConnectionStep (QOpcUaErrorState::ConnectionStep step )
void	setErrorCode (QOpcUa::UaStatusCode error )
void	setIgnoreError (bool ignore = true)

详细描述

There is not need to instatiate this class in your code. A client will emit an error state via QOpcUaClient::connectError in case an error has happend while establishing a connection.

The error can be caused by the backend itself or by the server rejecting the connection. If case of errors issued by the local backend, they can be ignored by calling the function setIgnoreError ().

成员类型文档编制

enum class QOpcUaErrorState:: ConnectionStep

Specifies at which step during the connection establishment the error occurred.

常量	值	描述
`QOpcUaErrorState::ConnectionStep::Unknown`	`0x00`	The connection step is unknown.
`QOpcUaErrorState::ConnectionStep::CertificateValidation`	`0x1`	Error happened in the certificate validation step.
`QOpcUaErrorState::ConnectionStep::OpenSecureChannel`	`0x2`	Error happened when opening the secure channel.
`QOpcUaErrorState::ConnectionStep::CreateSession`	`0x3`	Error happened when creating the session.
`QOpcUaErrorState::ConnectionStep::ActivateSession`	`0x4`	Error happened during session acivation.

成员函数文档编制

QOpcUaErrorState:: QOpcUaErrorState (const QOpcUaErrorState & other )

Constructs an error state from other .

QOpcUaErrorState &QOpcUaErrorState:: operator= (const QOpcUaErrorState & rhs )

Sets the values of rhs in this error state.

QOpcUaErrorState::ConnectionStep QOpcUaErrorState:: connectionStep () const

Returns the connection step in which the error occurred.

另请参阅 setConnectionStep ().

QOpcUa::UaStatusCode QOpcUaErrorState:: errorCode () const

Returns the OPC UA status code of the error occurred.

另请参阅 setErrorCode ().

bool QOpcUaErrorState:: ignoreError () const

Returns if this client side error should be ignored.

另请参阅 setIgnoreError ().

bool QOpcUaErrorState:: isClientSideError () const

Returns if the occurred error is a client side error.

void QOpcUaErrorState:: setClientSideError ( bool clientSideError )

Sets if the occurred error is a client side error to clientSideError .

另请参阅 isClientSideError ().

void QOpcUaErrorState:: setConnectionStep ( QOpcUaErrorState::ConnectionStep step )

Sets the connection step in which the error occurred to step .

另请参阅 connectionStep ().

void QOpcUaErrorState:: setErrorCode ( QOpcUa::UaStatusCode error )

Sets the OPC UA status code of the error occurred to error .

另请参阅 errorCode ().

void QOpcUaErrorState:: setIgnoreError ( bool ignore = true)

Sets if this client side error should be ignored to ignore .

Setting this flag does only work if the error is actually a client side error.

另请参阅 ignoreError ().