Continuation Point with massive data|OPC Certification and Interoperability Testing|Forum|OPC Foundation

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Continuation Point with massive data
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kishore kumar mallipudi
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03/25/2022 - 00:49
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Kindly let me know how to test the below Lab test case

where to set the continuation point for HDA. We have some historical data of results saved from execution of methods.

 

Is this implementation mandatory for CTT

 

LabHistoryRead() Invoke a generic HistoryRead request in an area of the Server's address space which contains a massive quantity of nodes, while employing a relatively short timeout.
 
Client timeout settings must be configurable. The Server's address space will need to be large with a single folder containing hundreds or thousands of nodes.
 
 
<p> If the Server is unable to process the request before the timeout, then it responds with a Good/empty response and a continuation point.</p>
 
<p> Will accept:<br /> Results=0; ContinuationPoint=provided<br /> Results=&gt;0; No ContinuationPoint<br /> Results=&gt;0; ContinuationPoint=provided.<br /> <br /> Not acceptable:<br /> Results=0; No ContinuationPoint and no error.</p>
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Alexander Allmendinger
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03/27/2022 - 09:02
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Hello Kishore,

all test cases in a mandated conformance unit are mandatory and need to be passed. There is nothing like optional test cases in a conformance unit. Only if the test requirement cannot be met by a product, than this test case can be skipped.

The continuation point this test case is referring to is the ContinuationPoint this test case is looking for is in the HistoryRead Response in the result field.

Regards,
Alexander Allmendinger

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