Persistent class data or static data for all objects

[twols]

Hello!

Is it possible (or how?) to have so persistent data over all objects inheriting from one generic class? I do have a class called "GenericView" and this class contains a list of localization strings. I would like to interit from this class in all classes which have some UI outputs. But I want do fill those language string just one time at startup.

In PHP or Java i would declare a static variable for a localization class...

[mje]

You do this in LabVIEW with a functional global (alternatively called a LabVIEW 2 global). Just have the VI be a part of your class and you can control its scope as you would any other class member.

[twols]

The global variable was my first idea too, but I can't encapsulate it in a class. The FG should do it.

Thank you!

[MikaelH]

GDS's GOOP3/4 class type have support for this.

You can look at those implementation to get ideas of different ways of doing this.

//Mike

[JamesMc86]

You appear to be able to use a global variable in the same way in a class, it doesn't create directly under the class but you can add it and set the scope to private.

[mje]

I hadn't thought of that. Neat idea.

[drjdpowell]

You appear to be able to use a global variable in the same way in a class, it doesn't create directly under the class but you can add it and set the scope to private.

I’ve used that recently. Though a private global isn’t really “global".

[MikaelH]

You appear to be able to use a global variable in the same way in a class, it doesn't create directly under the class but you can add it and set the scope to private.

Remember that a Static attribute using e.g. Globals/Functional Global in a base class gets shared between two different sub classes.

That might be something you want, but maybe you want this “global variable” to have one unique value per base or sub class.

In that case you can use a Named single element queue, using the object's class name.