#ObjectScript

Hello everybody.

My question originated when trying to help a coworker...

There is a system module, specifically a ClassMethod that inserts records into a table as per the pseudocode below:

set Obj = ##class(FooSchema.FooTable).%New()
set Obj.fooProp = fooValue
// Other Foo properties //
set status = Obj.%Save()

From time to time, when trying to save the object, an error , informing that it was not possible to obtain the exclusive lock on the table instance

I am receiving the following error in my buisness operation:

ERROR <Ens>ErrException: <UNDEFINED>zGo2+181^mb.MbMainOperation.1 *tSC -- - registered as '-' number - @' set pResponse = ##class(mb.MbMessageResponse).%New()'

From what I understand, the problem occurs in the generated int file mb.MbMainOperation.1 in the method zGo2, with the offset of 181 lines, and the variable in question is a local variable tSC.

However, the line where the error occurs does not refer to tSC in any way

Hi,

I have the requirement to dump large result sets into files. I am currently using %SQL.Statement and the result set created by it.

The DisplayFormatted is used to write a CSV. The query I used to test does not contain any filters, it is just a select * from a table with 16 million rows.
The file created is 2GB in size. The issue I have is that it takes 8 hours to create this file.

You may think it isn’t too difficult to get from label+offset^routine to the actual source line responsible for the error. For an expert it isn't that hard... most of the time. But there are enough oddities and special rules that even an expert can get it wrong, whilst spending a lot of time trying to get there.

gj :: locate is the latest tool from George James Software – it debugs any error, class or routine by converting the location of an error in compiled .int code to the corresponding location in your source, and then taking you right there.

Image this scenario…

I had a question about using ZSTART, ZSTOP, and ZMIRROR.

• If we use them and it is not correct, does it mess up with any of the existing functionality?
• So, if I create a ZSTART with a simple command of starting the %JDBC Server will that mess up anything existing in the Startup sequence?
• Is ZSTART, ZSTOP, and ZMIRROR just an extension of the existing functionality, or does it alter how the built in functionality runs?
• Should we tread lightly in the use of them?

I wrote this COS script that I can run in a terminal session to get a view of the cache users:

set hdl = ##class(%Library.ResultSet).%New()
set hdl.ClassName = "Security.Users"
set hdl.QueryName = "Detail"
set sc = hdl.Execute()

while hdl.%Next() { do hdl.%Print() }

Hello Everyone

I am new to cache. I know there are 2 types of methods in cache. One is Instance method (Which can be call through object creation of particular class) and other is Class methods (which can be call through ##Class(MyPackage.Car).CarModels()).

I want to know the difference when to create a instance method vs when to create a class methods.

Thanks in advance!!.

Hey Developers,

Meet the latest video on InterSystems Developers YouTube:

⏯ Configuring VS Code Workspaces for Multiple ObjectScript Connections

https://www.youtube.com/embed/CGEqFea0hh8
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I want to call some Java Remote Call through Java gateway. The call code as following:

class CallRemote Extends %CSP.REST {

Method Index() as %Status {

Try

set gw = createJavaGateway()

Do callJavaMethod(gw)

do gw.%Disconnect()

Catch {

}

}

}

But Every call need connect to Java Gateway and disconnect it. But It's cost too high( about 80ms)

So, According to my Java experences, I need create some connection and put it into global static ConnectionPool

I would like guidance on the most effective approach for converting UTC time, such as "2023-11-24T14:00:00.000Z," to the format "202311241400," while taking into account the 1-hour time difference during UK summer time. Any suggestions or advice would be greatly appreciated.

I am reading the following code in ObjectScript:

GitHub repository

And there is a sentence which I am facing difficulties to understand:

kill ^OPNLib.Game.CWLF(..World)

I know that kill removes variables, OPNLib.Game are the package and subpackage, and ..World is a property. However what does CWLF mean?

You could think that it is the class' name, but it is:

Hi,

i'm starting to try to switch to VS Code with ISC integration plugins.
Everything seems fine until i get to and environment with CCR enabled. I can't open any class in RW and i don't know how to check the class out.

Is it supported? What do i need to do to use it?

Thanks

Pietro

Hi Community,

Please welcome the new video recorded by @Robert Cemper on InterSystems Developers YouTube:

⏯ ZPMshow Demo

https://www.youtube.com/embed/y_RYE9n_EWw
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I am trying to call to a website that renders a xml structure as a response.if I put the url on the browser an xml rendered page is returned but if i call to this using the below code I get an object reference error which I am finding had to understand is there anyone who could help understand this error or point me in the right direction thanks.

Set tSC=$$$OK