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[OpenStack Infra <2102083@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/c/openstack/neutron/+/944099
Committed: https://opendev.org/openstack/neutron/commit/1e560ecd8a2a620b7b6d677bae962764302136a0
Submitter: "Zuul (22348)"
Branch:    master

commit 1e560ecd8a2a620b7b6d677bae962764302136a0
Author: Rodolfo Alonso Hernandez <ralonsoh@xxxxxxxxxx>
Date:   Thu Mar 13 08:39:06 2025 +0000

    Allow to delete singleton instances
    
    Now the decorator ``SingletonDecorator`` forgets the instantiated object
    if all references to this object have been deleted. It is needed to
    keep at least one reference to the decorated class in order to make
    any new instantiation idempotent.
    
    Closes-Bug: #2102083
    Change-Id: Ib237c7c1e1ba29626a03765a0521180fc2718c32


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/2102083

Title:
  ``SingletonDecorator`` class to allow destroying instances

Status in neutron:
  Fix Released

Bug description:
  The current ``SingletonDecorator`` does not allow to destroy already
  instantiated objects. This bug proposes to create a metaclass with a
  ``destroy`` subclass method that allows the object to delete itself.
  This could be useful now for testing.

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