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Persistent Object Framework
Message
From
03/01/2004 11:34:09
 
 
General information
Forum:
Visual FoxPro
Category:
Object Oriented Programming
Miscellaneous
Thread ID:
00863424
Message ID:
00863645
Views:
11
Hi Eduardo,

>Persistent Object Framework

VFP at design time is a Persistent Object Framework !

Infact, on VCX tables the subclasses are stored like persistent Objects
( on vcx a subclass is a objname and its memory image is ObjCode ).

When VFP Class Designer open a VCX class, it open a persistent Object.

If you want this at runtime you can do this:
- write a complex program for manipulate VCX tables
- use COMPILE command for build a memory image of this object.

with these you can store a runtime object like a subclass,
and reload it with createobject() or other commands.
Not a efficient schema, but...

Behaviours like BINDEVENT() and cross object references is hard
to implement on dbf, but it is possible.

Fabio
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