UaMonitoredItemData Class Reference

Implements a UA monitored item for data changes. Derived from UaMonitoredItem and IOVariableCallback It is not possible to create plane copies of this class. It is not possible to use the default constructor. More...

#include <uamonitoreditem.h>

Inheritance diagram for UaMonitoredItemData:

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Collaboration diagram for UaMonitoredItemData:

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List of all members.

Public Member Functions
	UaMonitoredItemData (VariableHandle *pVariableHandle, OpcUa_MonitoringMode MonitoringMode, OpcUa_Int32 ClientHandle, OpcUa_Double SamplingInterval, UaSubscription *pUaSubscription, OpcUa_UInt32 QueueSize, OpcUa_Boolean DiscardOldest, OpcUa_DataChangeTrigger dataChangeTrigger)
	~UaMonitoredItemData ()
MonitoredItemType	type () const
OpcUa_Boolean	hasChanged ()
void	setMonitoringMode (OpcUa_MonitoringMode monitoringMode)
void	setIOVariableHandle (OpcUa_UInt32 hIOVariable)
void	setDiscardPolicy (OpcUa_Boolean discardOldest)
void	setQueueSize (OpcUa_UInt32 queueSize)
void	setAbsolutDeadband (OpcUa_Double absoluteDeadband)
void	setDataChangeTrigger (OpcUa_DataChangeTrigger dataChangeTrigger)
UaDataValue *	getChangedValue ()
virtual void	dataChange (const UaDataValue &dataValue)

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Detailed Description

Implements a UA monitored item for data changes. Derived from UaMonitoredItem and IOVariableCallback It is not possible to create plane copies of this class. It is not possible to use the default constructor.

UaMonitoredItemData

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Constructor & Destructor Documentation

UaMonitoredItemData::UaMonitoredItemData	(	VariableHandle *	pVariableHandle,
		OpcUa_MonitoringMode	MonitoringMode,
		OpcUa_Int32	ClientHandle,
		OpcUa_Double	SamplingInterval,
		UaSubscription *	pUaSubscription,
		OpcUa_UInt32	QueueSize,
		OpcUa_Boolean	DiscardOldest,
		OpcUa_DataChangeTrigger	dataChangeTrigger
	)

construction

Parameters:

	pVariableHandle	Variable handle provided by the NodeManager::getVariableHandle.
	MonitoringMode	the mode for monitoring items.
	ClientHandle	a handle to the client.
	SamplingInterval	the value in MS for a Interval of a Variable
	QueueSize	the size of the queue.
	DiscardOldest	discards the oldest.
	dataChangeTrigger	a trigger that indicates that data has changed.

UaMonitoredItemData::~UaMonitoredItemData

(

)

destruction

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Member Function Documentation

MonitoredItemType UaMonitoredItemData::type

(

)

const [inline, virtual]

Get the type of monitored item

Returns:

the type of monitored item

Implements UaMonitoredItem.

OpcUa_Boolean UaMonitoredItemData::hasChanged

(

)

[virtual]

Check if the value or status of the item has changed.

Returns:

true if changed false if not.

Implements UaMonitoredItem.

void UaMonitoredItemData::setMonitoringMode

(

OpcUa_MonitoringMode

monitoringMode

)

[virtual]

Set the Monitoring Mode

Parameters:

monitoringMode

the Monitoring Mode

Reimplemented from UaMonitoredItem.

void UaMonitoredItemData::setIOVariableHandle

(

OpcUa_UInt32

hIOVariable

)

Set the related IOVariable handle.

Parameters:

hIOVariable

The handle of the variable in the IOManager created with beginStartMonitoring. The handle was passed to the SDK in the callback finishStartMonitoring.

void UaMonitoredItemData::setDiscardPolicy

(

OpcUa_Boolean

discardOldest

)

Set the discard policy for the monitored item.

Parameters:

discardOldest

discards the oldest.

void UaMonitoredItemData::setQueueSize

(

OpcUa_UInt32

queueSize

)

Set the queue size for the monitored item.

Parameters:

queueSize

the size of the queue.

void UaMonitoredItemData::setAbsolutDeadband

(

OpcUa_Double

absoluteDeadband

)

Set the absolute deadband for the monitored item.

Parameters:

absoluteDeadband

the absolute deadband for the monitored item.

void UaMonitoredItemData::setDataChangeTrigger

(

OpcUa_DataChangeTrigger

dataChangeTrigger

)

Set the data change trigger for the monitored item.

Parameters:

dataChangeTrigger

the data change trigger for the monitored item.

UaDataValue * UaMonitoredItemData::getChangedValue

(

)

Get changed value from item and reset changed flag.

Returns:

the changed value from item and reset changed flag.

void UaMonitoredItemData::dataChange

(

const UaDataValue &

dataValue

)

[virtual]

Signal a change in value or state.

Parameters:

dataValue

the requested Value for this operation.

Implements IOVariableCallback.

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

• src/uaserver/uaservercpp/uamodule/uamonitoreditem.h
• src/uaserver/uaservercpp/uamodule/uamonitoreditem.cpp