How to use classparameters?

Question

Question

Michael Lundberg · Apr 23, 2020

#Other

Hello!

I'm not really familiar with how and if class parameters can be used during runtime or if it is static.

Class %TimeStamp has parameter XMLTIMEZONE [Constraint = "IGNORE, UTC", Flags = ENUM] = "UTC";

I wonder if that parameter can be changed to IGNORE during runtime and in that case how?

For the moment I have created my own type that inherits from %TimeStamp in order to change to IGNORE

Greetings Michael

Discussion (6)1

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Robert Cemper · Apr 23, 2020

CLASSPARAMETERS are static and apply to class compile time.
You refer to it by ..#paramname in your class code
https://cedocs.intersystems.com/latest/csp/docbook/Doc.View.cls?KEY=RCOS_fparameter
see section References to Other Class Members

or by COS function $PARAMETER(class,parameter)

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Eduard Lebedyuk · Apr 23, 2020

You should set it as your property parameter:

Class MyClass {

Property CreatedOn As %TimeStamp(XMLTIMEZONE  = "IGNORE");

}

In runtime the behavior for your property CreatedOn would be IGNORE.

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score 0 · Answer 1 · 2020-04-23T07:41:00-04:00

Hi and thanks for your answer Robert.

I can now see that I was unclear about my question, I apologize for that

What I wanted is to see if it was possible to change
the value of parameter without changing the %TimeStamp class
or building a new class in my solution.

score 0 · Answer 2 · 2020-04-23T07:56:57-04:00

Hi and thanks for answer Eduard.

It did not work properly and it is still labeled as UTC in the SOAP request I send.
I.E 2019-09-12T10: 39: 00Z. Maybe i'm doing something wrong. I dont' know.

Anyway, if I instead changed this type in my class from:
Property VisitTime As% TimeStamp (XMLNAME = "VisitTime" , XMLPROJECTION = "ATTRIBUTE");

To:
Property VisitTime As% TimeStamp (XMLNAME = "VisitTime " , XMLPROJECTION = "ATTRIBUTE", XMLTIMEZONE = "IGNORE");

it came out as 2019-09-12T10:39:00 (No Z at the end indicating UTC). And that's what I was looking for. However it can couse me trouble if the schema will be updated and i will lost my changes. And it would be easier to not change every %Timestamp-property in my class

score 0 · Answer 3 · 2020-04-23T08:03:06-04:00

VisitTime (any property really) should be stored before property parameter change.

Can you try to recreate the data?

score 0 · Answer 4 · 2020-04-24T04:59:52-04:00

Hello

I don't think so. This is a proxy-class of type %SerialObject which I populate and embed in to the request class

/Michael