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Accepted answers
Evgeny Shvarov · Jun 29, 2019 go to post

Marked this approach as a preferred for Object access if the property is not Calculated and not Transient.

Evgeny Shvarov · Jun 29, 2019 go to post

Do we have two types of getters?

I mean the one which you code a method like Class.PropertyGet()

Evgeny Shvarov · Jun 29, 2019 go to post

Thanks, Danny!

good point on slow opening an instance with 100 properties and maybe lot more got swizzled.

Evgeny Shvarov · Jun 29, 2019 go to post

Maybe getters could be considered as bad practice in general cause its not called with get stored and not called via  SQL

Evgeny Shvarov · Jun 29, 2019 go to post

Thanks, Ed! This is nice!

But this will approach will not execute getter method if any, right?

Evgeny Shvarov · Jun 19, 2019 go to post

Thanks, Anastasia!

Very helpful! 

I believe we also have a series upon the number of accepted answers, like 10,25,50,100 accepted answers. Do we?

Evgeny Shvarov · Jun 19, 2019 go to post

Raising this again.

Suppose I changed how dimension A works. 

How do I sure that none of the pivots were broken because of the change?

Yes, I can manually run all the pivots I have. But maybe somebody did a class for that?

Evgeny Shvarov · Jun 17, 2019 go to post

Hi Jimmy!

401 means that Authenticated user is not authorized to reach the server.

To prove the fact you could grant the application a %ALL role (the second tab) and this should work then.

Evgeny Shvarov · Jun 11, 2019 go to post

You are welcome, Nikita! This was pretty random but must admit that WebTerminal is a really popular app. And looking forward to seeing the commit to make the repo considered as InterSystems ObjectScript application ;)

Evgeny Shvarov · Jun 6, 2019 go to post

I'd go with one namespace for one project approach. It's much more manageable in the long term.

Take a look at this video where I show the example of starting new ObjectScript project with Github, VSCode, and Docker, and which has an installer for a new namespace.

Evgeny Shvarov · Jun 5, 2019 go to post

Good point, John!

Could be a good feature request. But do you want to add an extra option for “Results are hidden until you vote?”

And I think results are visible for everyone when the voting period is over, right?

Evgeny Shvarov · Jun 3, 2019 go to post

Stores data on disk? Meaning, that if we create these persistent classes, the data is stored twice? Once in the global node and in some other format as defined (or not defined by the class)?  

ANY data in Caché and IRIS is stored in global and it's not stored twice, everytime in a global, which is in the storage strategy of the persistent class.

Any SQL table in Caché and IRIS has the related persistent class in the metadata.

But just to reiterate, how does the DDL interpret a read definition into a write definition? The data stored in the global node and the definition do line up exactly (in our case, almost not at all).

Could you elaborate, please?

Just in case: you can deal with Caché and IRIS as with any relational DB: use DDL, SQL via ODBC/JDBC.

And yes, every time you call

CREATE TABLE A 

the new persistent class A is being created on the backend to store data in ^AD global.

Evgeny Shvarov · Jun 3, 2019 go to post

It's all about multi-model nature of IRIS and Caché.

Everything in Caché and InterSystems IRIS is being stored in globals - key-value sparse stored arrays.

Every persistent class (a class which stores data on disk) has the map of how the data should be stored in a particular global (globals).

ObjectScript Class definition provides the API of how the data will be stored and read from a global (globals) via Object Script or SQL access.

You can specify standard or custom storage strategy for a class. 

The persistent 'SomeClass' class with standard storage strategy will provide the API to store data in ^SomeClassD data for data itself and ^SomeClassI global for indexes.

You can see the storage strategy of a class in the source code of a persistent class immediately after successful compilation - it will be visible in a related XML block at the bottom of the class.

In your case you have a custom storage strategy which could be everything. Check @Brendan Bannon's series on that which could be really helpful for you.

As @Eduard Lebedyuk mentioned, if you delete the class as source code (e.g. via Management Portal)  it will not delete the data itself.

But! As @Robert Cemper mentioned if you delete it via SQL API with DROP statement it will delete data in a global too (because we suppose the data to be deleted if we DROP a table, right?).

HTH

Evgeny Shvarov · Jun 1, 2019 go to post

Dmitry!

Thanks for your great work! And take my first donut of 1,000 rubles! :) Looking for new features ;)

Evgeny Shvarov · May 23, 2019 go to post

Nice!

Just tried this with docker container on my local machine.

And got 1 million insertions(1,000,000) in 1,45 sec on my mac pro. Cool!