The corresponding callback interface for the IOManager. More...

#include <iomanager.h>

Inherited by CoreTransactions, UaSubscription, and UaTransactionManager.

Public Member Functions
	IOManagerCallback ()
	Construction.

virtual	~IOManagerCallback ()
	Destruction.

virtual UaStatus	finishRead (OpcUa_UInt32 hTransaction, OpcUa_UInt32 callbackHandle, UaDataValue &dataValue, OpcUa_Boolean detachValue=OpcUa_False, OpcUa_Boolean allowThreadUse=OpcUa_False, UaDiagnosticInfo *pDiagnosticInfo=NULL)=0
	Finished reading of an attribute value of a node. More...

virtual UaStatus	finishWrite (OpcUa_UInt32 hTransaction, OpcUa_UInt32 callbackHandle, const UaStatus &statusCode, OpcUa_Boolean allowThreadUse=OpcUa_False)=0
	Finished writing of an attribute value of a node. More...

virtual UaStatus	finishStartMonitoring (OpcUa_UInt32 hTransaction, OpcUa_UInt32 callbackHandle, OpcUa_UInt32 hIOVariable, OpcUa_Double revisedSamplingInterval, OpcUa_Boolean initialDataValueAvailable, const UaDataValue &initialDataValue, const UaStatus &statusCode)=0
	Finished start monitoring of an attribute value of a node. More...

virtual UaStatus	finishModifyMonitoring (OpcUa_UInt32 hTransaction, OpcUa_UInt32 callbackHandle, OpcUa_Double revisedSamplingInterval, const UaStatus &statusCode)=0
	Finished modify monitoring of an attribute value of a node. More...

virtual UaStatus	finishStopMonitoring (OpcUa_UInt32 hTransaction, OpcUa_UInt32 callbackHandle, const UaStatus &statusCode)=0
	Finished stop monitoring of an attribute value of a node. More...

Detailed Description

The corresponding callback interface for the IOManager.

This callback interface provides all corresponding callback methods for the begin methods in the IOManager interface.

Member Function Documentation

virtual UaStatus IOManagerCallback::finishModifyMonitoring	(	OpcUa_UInt32	hTransaction,
		OpcUa_UInt32	callbackHandle,
		OpcUa_Double	revisedSamplingInterval,
		const UaStatus &	statusCode
	)

pure virtual

Finished modify monitoring of an attribute value of a node.

The method is called to finish the modifying of the sampling attributes for a monitored item. The modifying is started with the beginModifyMonitoring method of the interface IOManager.

Parameters

hTransaction	Handle for the transaction used by the SDK to identify the transaction in the callbacks. This handle was passed in to the IOManager with the beginTransaction method.
callbackHandle	Handle for the node in the callback. This handle was passed in to the IOManager with the beginModifyMonitoring method.
revisedSamplingInterval	The corresponding revised sampling interval for the requested sampling interval in beginModifyMonitoring.
statusCode	Result of the ModifyMonitoring operation. Optional diagnostig information requested by the client in the parameter ServiceContext::returnDiagnostics of IOManager::beginTransaction can be provided through UaStatus::setDiagnosticInfo().

Returns: Error code

Implemented in UaSubscription, and UaTransactionManager.

virtual UaStatus IOManagerCallback::finishRead	(	OpcUa_UInt32	hTransaction,
		OpcUa_UInt32	callbackHandle,
		UaDataValue &	dataValue,
		OpcUa_Boolean	detachValue = `OpcUa_False`,
		OpcUa_Boolean	allowThreadUse = `OpcUa_False`,
		UaDiagnosticInfo *	pDiagnosticInfo = `NULL`
	)

pure virtual

Finished reading of an attribute value of a node.

The method is called to finish a read call for an attribute value of a node. The read is started with the beginRead method of the interface IOManager.

Parameters

hTransaction	Handle for the transaction used by the SDK to identify the transaction in the callbacks. This handle was passed in to the IOManager with the beginTransaction method.
callbackHandle	Handle for the node in the callback. This handle was passed in to the IOManager with the beginRead method.
dataValue	Contains the value, timestamps and result code for the Read operation.
detachValue	Indicates if the method can detach the value from the wrapper class.
allowThreadUse	Indicates if the calling thread can be used by the SDK to send the response to the client. This can happen if this method is the called for the last node in the transaction. True: The thread calling this method can be used to send the response and may block False: The SDK is using a worker thread to send the response to the client.
pDiagnosticInfo	Optional diagnostig information requested by the client in the parameter ServiceContext::returnDiagnostics of IOManager::beginTransaction

Returns: Error code

Implemented in UaSubscription, and UaTransactionManager.

virtual UaStatus IOManagerCallback::finishStartMonitoring	(	OpcUa_UInt32	hTransaction,
		OpcUa_UInt32	callbackHandle,
		OpcUa_UInt32	hIOVariable,
		OpcUa_Double	revisedSamplingInterval,
		OpcUa_Boolean	initialDataValueAvailable,
		const UaDataValue &	initialDataValue,
		const UaStatus &	statusCode
	)

pure virtual

Finished start monitoring of an attribute value of a node.

The method is called to finish the starting of the sampling for a monitored item. The sampling is started with the beginStartMonitoring method of the interface IOManager.

Parameters

hTransaction	Handle for the transaction used by the SDK to identify the transaction in the callbacks. This handle was passed in to the IOManager with the beginTransaction method.
callbackHandle	Handle for the node in the callback. This handle was passed in to the IOManager with the beginStartMonitoring method.
hIOVariable	The handle of the item in the IOManager created with beginStartMonitoring. The handle is used by the SDK in beginModifyMonitoring and beginStopMonitoring to adress the item in the IOManager.
revisedSamplingInterval	The corresponding revised sampling interval for the requested sampling interval in beginStartMonitoring.
initialDataValueAvailable	Indicates if the initial value parameter is valid.
initialDataValue	Contains the value, timestamps and result code for the initial value.
statusCode	Result of the StartMonitoring operation. Optional diagnostig information requested by the client in the parameter ServiceContext::returnDiagnostics of IOManager::beginTransaction can be provided through UaStatus::setDiagnosticInfo().

Returns: Error code

Implemented in UaSubscription, and UaTransactionManager.

virtual UaStatus IOManagerCallback::finishStopMonitoring	(	OpcUa_UInt32	hTransaction,
		OpcUa_UInt32	callbackHandle,
		const UaStatus &	statusCode
	)

pure virtual

Finished stop monitoring of an attribute value of a node.

The method is called to finish the stopping of the sampling for a monitored item. The stopping is started with the beginStopMonitoring method of the interface IOManager.

Parameters

hTransaction	Handle for the transaction used by the SDK to identify the transaction in the callbacks. This handle was passed in to the IOManager with the beginTransaction method.
callbackHandle	Handle for the node in the callback. This handle was passed in to the IOManager with the beginStopMonitoring method.
statusCode	Result of the StopMonitoring operation. Optional diagnostig information requested by the client in the parameter ServiceContext::returnDiagnostics of IOManager::beginTransaction can be provided through UaStatus::setDiagnosticInfo().

Returns: Error code

Implemented in UaSubscription, and UaTransactionManager.

virtual UaStatus IOManagerCallback::finishWrite	(	OpcUa_UInt32	hTransaction,
		OpcUa_UInt32	callbackHandle,
		const UaStatus &	statusCode,
		OpcUa_Boolean	allowThreadUse = `OpcUa_False`
	)

pure virtual

Finished writing of an attribute value of a node.

The method is called to finish a write call for an attribute value of a node. The write is started with the beginWrite method of the interface IOManager.

Parameters

hTransaction	Handle for the transaction used by the SDK to identify the transaction in the callbacks. This handle was passed in to the IOManager with the beginTransaction method.
callbackHandle	Handle for the node in the callback. This handle was passed in to the IOManager with the beginWrite method.
statusCode	Result of the Write operation. Optional diagnostig information requested by the client in the parameter ServiceContext::returnDiagnostics of IOManager::beginTransaction can be provided through UaStatus::setDiagnosticInfo().
allowThreadUse	Indicates if the calling thread can be used by the SDK to send the response to the client. This can happen if this method is the called for the last node in the transaction. True: The thread calling this method can be used to send the response and may block False: The SDK is using a worker thread to send the response to the client.

Returns: Error code

Implemented in UaSubscription, and UaTransactionManager.

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

D:/work/uasdkcpp/src/uaserver/uaservercpp/coremodule/iomanager.h

Public Member Functions

Detailed Description

Member Function Documentation