C# Class TestData.HistoryFile

Wraps a file which contains a list of historical values.

Inheritance: IHistoryDataSource

Exibir arquivo Open project: OPCFoundation/UA-.NET

Public Methods

Method	Description
FirstRaw ( System.DateTime startTime, bool isForward, bool isReadModified, int &position ) : Opc.Ua.DataValue	Returns the next value in the archive.
NextRaw ( System.DateTime lastTime, bool isForward, bool isReadModified, int &position ) : Opc.Ua.DataValue	Returns the next value in the archive.

Private Methods

Method	Description
HistoryFile ( object dataLock, List entries ) : System	Creates a new file.

Method Details

FirstRaw() public method

Returns the next value in the archive.

public FirstRaw ( System.DateTime startTime, bool isForward, bool isReadModified, int &position ) : Opc.Ua.DataValue
startTime	System.DateTime	The starting time for the search.
isForward	bool	Whether to search forward in time.
isReadModified	bool	Whether to return modified data.
position	int	A index that must be passed to the NextRaw call.
return	Opc.Ua.DataValue

NextRaw() public method

Returns the next value in the archive.

public NextRaw ( System.DateTime lastTime, bool isForward, bool isReadModified, int &position ) : Opc.Ua.DataValue
lastTime	System.DateTime	The timestamp of the last value returned.
isForward	bool	Whether to search forward in time.
isReadModified	bool	Whether to return modified data.
position	int	A index previously returned by the reader.
return	Opc.Ua.DataValue