Class: HandleRegistry

• Inheritance
• Description
• Instance protocol
  • dispose handling
  • redefined to block

Inheritance:

   Object
   |
   +--Registry
      |
      +--HandleRegistry

Package:

stx:libbasic

Category:

System-Support

Version:

rev: 1.9 date: 2002/03/04 19:15:09

user: stefan

file: HandleRegistry.st directory: libbasic

module: stx stc-classLibrary: libbasic

Author:

Claus Gittinger

Description:

HandleRegistries are like Registries, in that they watch for the death of
a registered object. However, they send a self-change notification, passing the registered
handle as argument, instead of creating a shallow copy and letting it do the finalization.
Use Registry for objects which know themself how to clean up;
use HandleRegistry, if someone else does the cleanup.

Instance protocol:

 informDispose: someHandle

an element was disposed; let my dependents know about this

 register: anObject

not useful for HandleRegistry - use #register:as:

 registerChange: anObject

not useful for HandleRegistry