No.

Here's the docs.

Yes

That's explicit if you code it.

By default PropertyGet()  method exists, but hidden - it's an implicit getter.

Getters defined via SQLComputeCode work for both SQL and objects iirc.

Are you talking about implicit or explicit getters?

Please elaborate.

No, this approach would go to the global.

Is it Xades?

I've done Xades signing, but not with RSA algorithms. Still, might be useful for you. Drop me your GitHub username if you need the code.

To add Xades support I used a reference implementation in .Net - read the Xades docs on how it's supposed to work, then decompiled .Net libraries to see how it all actually works, and recreated it in ObjectScript.

This is possible:

Class MyClass As %Persistent {

Method SaveToNs(Namespace = {$namespace}) As %Status
{
  new $namespace = ""
  set $namespace = Namespace
  quit:'##class(%Dictionary.CompiledClass).%ExistsId(..%ClassName(1)) $$$ERROR($$$GeneralError, "Class is undefined in: " _ Namespace)
  set sc = ..%Save()
  quit sc

}

}

What's the use case?

You can't pass object via JOB command.

Are you sure about:

Property PatientId As %Stream.FileCharacter;
Property PatientName As %Stream.FileCharacter;

Both of these fields are less than 3 641 144 characters in size, so

Property PatientId As %VarString;
Property PatientName As %VarString;

Would probably work.

You can add ToStream() method to your class to provide serialization, if you need to (Or just add JSON or XML adaptors to generate XML or JSON (de)serializations automatically).

What do you mean not getting called?

Is the child process created (check with $zchild/$test)?

Does it start work (set some global in the beginning)?

EnableNamespace creates new DBs?

Not exactly what you asked for, but MONLBL utility has a web interface.