Visibility & Scope understanding.

[Giorgio Zoppi]

Dear all,
your panama tool is excellent. I need a deeper understanding on how to use
an opaque object for my botan java binding (botan is a C++ cryptolibrary)

Basically my code has an opaque pointer
:
private Pointer<Pointer<botan_mac_struct>> botanMac;

in the constructor i have inside a scope:

 this.botanMac =
scope().allocate(LayoutType.ofStruct(botan_mac_struct.class).pointer());

How can I have class scope? The botanMac object will be used everywhere
inside the class and not just in the ctor. Do you have any docs about that?
Best Regards,
Giorgio