C# Class Quickstarts.HistoricalAccessServer.ArchiveItemState

Stores the metadata for a node representing an item in the archive.

Inheritance: Opc.Ua.DataItemState

Show file Open project: OPCFoundation/UA-.NET Class Usage Examples

Public Methods

Method	Description
ArchiveItemState ( ISystemContext context, ArchiveItem item, ushort namespaceIndex ) : System	Creates a new instance of a item.
ConstructId ( string filePath, ushort namespaceIndex ) : Opc.Ua.NodeId	Constructs a node identifier for a item object.
DeleteAnnotationHistory ( SystemContext context, Opc.Ua.QualifiedName propertyName, System.DateTime sourceTimestamp ) : uint	Deletes a property value from the history.
DeleteHistory ( SystemContext context, System.DateTime sourceTimestamp ) : uint	Deletes a value from the history.
DeleteHistory ( SystemContext context, System.DateTime startTime, System.DateTime endTime, bool isModified ) : uint	Deletes a value from the history.
FindValueAfter ( DataView view, int position, bool ignoreBad, bool &dataIgnored ) : int	Returns the next value after the current position.
FindValueAtOrBefore ( DataView view, System.DateTime timestamp, bool ignoreBad, bool &dataIgnored ) : int	Finds the value at or before the timestamp.
LoadConfiguration ( SystemContext context ) : void	Loads the configuration.
NewSamples ( SystemContext context ) : List	Creates a new sample.
ReadHistory ( System.DateTime startTime, System.DateTime endTime, bool isModified ) : DataView	Reads the history for the specified time range.
ReadHistory ( System.DateTime startTime, System.DateTime endTime, bool isModified, Opc.Ua.QualifiedName browseName ) : DataView	Reads the history for the specified time range.
ReloadFromSource ( SystemContext context ) : void	Loads the data.
UpdateAnnotations ( SystemContext context, Annotation annotation, Opc.Ua.DataValue value, PerformUpdateType performUpdateType ) : uint	Updates the history.
UpdateHistory ( SystemContext context, Opc.Ua.DataValue value, PerformUpdateType performUpdateType ) : uint	Updates the history.

Private Methods

Method	Description
GetModificationInfo ( SystemContext context, HistoryUpdateType updateType ) : ModificationInfo	Creates a modification info record.
SelectTable ( Opc.Ua.QualifiedName propertyName ) : DataTable	Selects the table to use.

Method Details

ArchiveItemState() public method

Creates a new instance of a item.

public ArchiveItemState ( ISystemContext context, ArchiveItem item, ushort namespaceIndex ) : System
context	ISystemContext
item	ArchiveItem
namespaceIndex	ushort
return	System

ConstructId() public static method

Constructs a node identifier for a item object.

public static ConstructId ( string filePath, ushort namespaceIndex ) : Opc.Ua.NodeId
filePath	string
namespaceIndex	ushort
return	Opc.Ua.NodeId

DeleteAnnotationHistory() public method

Deletes a property value from the history.

public DeleteAnnotationHistory ( SystemContext context, Opc.Ua.QualifiedName propertyName, System.DateTime sourceTimestamp ) : uint
context	Opc.Ua.SystemContext
propertyName	Opc.Ua.QualifiedName
sourceTimestamp	System.DateTime
return	uint

DeleteHistory() public method

Deletes a value from the history.

public DeleteHistory ( SystemContext context, System.DateTime sourceTimestamp ) : uint
context	Opc.Ua.SystemContext
sourceTimestamp	System.DateTime
return	uint

DeleteHistory() public method

Deletes a value from the history.

public DeleteHistory ( SystemContext context, System.DateTime startTime, System.DateTime endTime, bool isModified ) : uint
context	Opc.Ua.SystemContext
startTime	System.DateTime
endTime	System.DateTime
isModified	bool
return	uint

FindValueAfter() public method

Returns the next value after the current position.

public FindValueAfter ( DataView view, int position, bool ignoreBad, bool &dataIgnored ) : int
view	System.Data.DataView
position	int
ignoreBad	bool
dataIgnored	bool
return	int

FindValueAtOrBefore() public method

Finds the value at or before the timestamp.

public FindValueAtOrBefore ( DataView view, System.DateTime timestamp, bool ignoreBad, bool &dataIgnored ) : int
view	System.Data.DataView
timestamp	System.DateTime
ignoreBad	bool
dataIgnored	bool
return	int

LoadConfiguration() public method

Loads the configuration.

public LoadConfiguration ( SystemContext context ) : void
context	Opc.Ua.SystemContext
return	void

NewSamples() public method

Creates a new sample.

public NewSamples ( SystemContext context ) : List
context	Opc.Ua.SystemContext
return	List

ReadHistory() public method

Reads the history for the specified time range.

public ReadHistory ( System.DateTime startTime, System.DateTime endTime, bool isModified ) : DataView
startTime	System.DateTime
endTime	System.DateTime
isModified	bool
return	System.Data.DataView

ReadHistory() public method

Reads the history for the specified time range.

public ReadHistory ( System.DateTime startTime, System.DateTime endTime, bool isModified, Opc.Ua.QualifiedName browseName ) : DataView
startTime	System.DateTime
endTime	System.DateTime
isModified	bool
browseName	Opc.Ua.QualifiedName
return	System.Data.DataView

ReloadFromSource() public method

Loads the data.

public ReloadFromSource ( SystemContext context ) : void
context	Opc.Ua.SystemContext
return	void

UpdateAnnotations() public method

Updates the history.

public UpdateAnnotations ( SystemContext context, Annotation annotation, Opc.Ua.DataValue value, PerformUpdateType performUpdateType ) : uint
context	Opc.Ua.SystemContext
annotation	Annotation
value	Opc.Ua.DataValue
performUpdateType	PerformUpdateType
return	uint

UpdateHistory() public method

Updates the history.

public UpdateHistory ( SystemContext context, Opc.Ua.DataValue value, PerformUpdateType performUpdateType ) : uint
context	Opc.Ua.SystemContext
value	Opc.Ua.DataValue
performUpdateType	PerformUpdateType
return	uint