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Posted to dev@sling.apache.org by "Carsten Ziegeler (JIRA)" <ji...@apache.org> on 2012/10/26 15:45:14 UTC
[jira] [Commented] (SLING-2630) Cannot have multiple Adapter
Factories configured to have same adapter / adaptable combination
[ https://issues.apache.org/jira/browse/SLING-2630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13484920#comment-13484920 ]
Carsten Ziegeler commented on SLING-2630:
-----------------------------------------
Thanks for the patch, Will. Looks good to me, so I applied it.
And this also solves SLING-1960 :)
> Cannot have multiple Adapter Factories configured to have same adapter / adaptable combination
> ----------------------------------------------------------------------------------------------
>
> Key: SLING-2630
> URL: https://issues.apache.org/jira/browse/SLING-2630
> Project: Sling
> Issue Type: Bug
> Components: Extensions
> Affects Versions: Adapter 2.0.16
> Reporter: Will McGauley
> Assignee: Carsten Ziegeler
> Labels: AdapterManager
> Fix For: Adapter 2.0.18
>
> Attachments: SLING-2630.patch
>
>
> If you configure more than one AdapterFactory in the system which bears the same adapter / adaptable combinations only the AdapterFactory with the highest ranking is used.
> Example:
> ClassA extends MyInterface
> classB extends MyInterface
> AdapterFactoryA adapts Node to MyInterface (hoping to return implementation ClassA under some circumstances)
> AdapterFactoryB adapts Node to MyInterface (hoping to return implementation ClassA under some other circumstances)
> when adapting Node to MyInterface, only AdapterFactoryA is ever used, even if it returns null for a particular Node.
> Expected: If AdapterFactoryA returns null then any remaining AdapterFactories configured with that combination (in this case AdapterFactoryB) should be allowed the chance to adapt
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