"

 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.

"

"{ Package: 'stx:libbasic' }"

Registry subclass:#HandleRegistry

	instanceVariableNames:''

	classVariableNames:''

	poolDictionaries:''

	category:'System-Support'

!

!HandleRegistry class methodsFor:'documentation'!

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.

"

!

documentation

"

    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.

    [author:]

        Claus Gittinger

"

! !

!HandleRegistry methodsFor:'dispose handling'!

informDispose:someHandle

    "an element was disposed; let my dependents know about this"

    self changed:#finalize with:someHandle

! !

!HandleRegistry methodsFor:'redefined to block'!

register:anObject

    "not useful for HandleRegistry - use #register:as:"

    self shouldNotImplement

!

registerChange:anObject

    "not useful for HandleRegistry"

    self shouldNotImplement

! !

!HandleRegistry class methodsFor:'documentation'!

version

! !