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From Carsten Ziegeler <>
Subject Re: Search for specific resource types
Date Fri, 12 Jan 2018 14:25:54 GMT
I think some time ago we discussed a separate resource type mgmt service
(which also could cache resource type resolution).

Maybe now is a good time to think about it and introduce it?



Konrad Windszus wrote
> Yes, exactly.
> But if someone has a better idea on how to achieve that I am eager all ears.
>> On 12. Jan 2018, at 15:19, Jason Bailey <> wrote:
>> So that I understand, this would benefit a scenario where you are searching for a
specific resource type, and the search implementation would have to traverse up the resourceType
hierarchy to determine if a specific type was of a type that you are looking for.
>> One of the solutions for this, as you suggest, could be a pre-emptive determination
of the derived types and then the search implementation could compare against that. 
>> Did I get that right?
>> -----Original Message-----
>> From: Konrad Windszus [] 
>> Sent: Friday, January 12, 2018 5:46 AM
>> To:
>> Subject: Re: Search for specific resource types
>> Ping, does anyone have any idea?
>> I am thinking about introducing a new method to ResourceResolver which allows to
return all derived resource types for a given resource type. That must internally rely on
a search within /apps and /libs looking for resourceSuperType=<given type> recursively!
>> Such a method could be used as a basis for the query to look for content of type
"a" or a derived type.
>> WDYT?
>> Konrad
>>> On 15. Dec 2017, at 16:59, Konrad Windszus <> wrote:
>>> Hi,
>>> is there a simple way to search with Sling Resource API for resources which have
a certain resource type "a" or a resource type derived from "a".
>>> The resource type inheritance in Sling is a pretty powerful concept. I am wondering
how to properly support that when searching for content which is either of resource type a
directly or a derived resource type.
>>> I cannot really think of a JCR SQL2 or XPath expression which would also cover
derived resource types (without knowing them in advance).
>>> Thanks for any pointers,
>>> Konrad
Carsten Ziegeler
Adobe Research Switzerland

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