Class: HandleRegistry

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

Inheritance:

   Object
   |
   +--Collection
      |
      +--Set
         |
         +--Dictionary
            |
            +--IdentityDictionary
               |
               +--WeakIdentityDictionary
                  |
                  +--Registry
                     |
                     +--HandleRegistry

Package:

stx:libbasic

Category:

System-Support

Version:

rev: 1.11 date: 2021/01/20 11:03:17

user: cg

file: HandleRegistry.st directory: libbasic

module: stx stc-classLibrary: libbasic

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.

copyright
COPYRIGHT (c) 1995 by Claus Gittinger
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

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