C++ Based OPC UA Client/Server/PubSub SDK  1.7.6.537
UaClientSdk::HistoryReadAtTimeContext Class Reference

The HistoryReadAtTimeContext class contains the settings for a HistoryReadAtTime call. More...

#include <uaclientsdk.h>

Public Member Functions

 HistoryReadAtTimeContext ()
 Creates a HistoryReadAtTimeContext object with default settings described with the parameters. More...
 
 ~HistoryReadAtTimeContext ()
 Destroys the HistoryReadAtTimeContext object. More...
 

Public Attributes

OpcUa_TimestampsToReturn timeStamps
 Enumeration for the timestamps to return with the values. More...
 
OpcUa_Boolean bReleaseContinuationPoints
 This parameter must be set to true to release a continuation point without requesting more data. More...
 
UaDateTimeArray requestedTimes
 The entries in the array define the specific timestamps for which values are to be read. More...
 
OpcUa_Boolean useSimpleBounds
 Flag indicating if simple bound calculation should be applied. More...
 

Detailed Description

The HistoryReadAtTimeContext class contains the settings for a HistoryReadAtTime call.

Constructor & Destructor Documentation

UaClientSdk::HistoryReadAtTimeContext::HistoryReadAtTimeContext ( )
inline

Creates a HistoryReadAtTimeContext object with default settings described with the parameters.

UaClientSdk::HistoryReadAtTimeContext::~HistoryReadAtTimeContext ( )
inline

Destroys the HistoryReadAtTimeContext object.

Member Data Documentation

OpcUa_Boolean UaClientSdk::HistoryReadAtTimeContext::bReleaseContinuationPoints

This parameter must be set to true to release a continuation point without requesting more data.

The default value is false.

UaDateTimeArray UaClientSdk::HistoryReadAtTimeContext::requestedTimes

The entries in the array define the specific timestamps for which values are to be read.

The default value is an empty array.

OpcUa_TimestampsToReturn UaClientSdk::HistoryReadAtTimeContext::timeStamps

Enumeration for the timestamps to return with the values.

The default value is Source.

Possible options are

  • OpcUa_TimestampsToReturn_Source = 0,
  • OpcUa_TimestampsToReturn_Server = 1,
  • OpcUa_TimestampsToReturn_Both = 2,

The option OpcUa_TimestampsToReturn_Neither = 3 is invalid for history read.

OpcUa_Boolean UaClientSdk::HistoryReadAtTimeContext::useSimpleBounds

Flag indicating if simple bound calculation should be applied.

The default value is false.


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