What is jcr:uuid? When it will be generate? | Community
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akshaybhujbale
Level 6
August 2, 2022
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What is jcr:uuid? When it will be generate?

  • August 2, 2022
  • 1 reply
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What is jcr:uuid? When it generate after page or asset creation or after publishing?

Is it a default property? 

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Best answer by Jagadeesh_Prakash

@akshaybhujbale The jcr:uuid property is a protected, auto-created, mandatory property. This means that it is created and administered by the system and can only be read (but not changed or deleted) by the client. The job of the jcr:uuid property is to expose the universally unique identifier (UUID) of its node

 

https://developer.adobe.com/experience-manager/reference-materials/spec/jcr/1.0/4.9_Referenceable_Nodes.html#:~:text=The%20jcr%3Auuid%20property%20is,(UUID)%20of%20its%20node.

 

 

1 reply

Jagadeesh_Prakash
Community Advisor
Jagadeesh_PrakashCommunity AdvisorAccepted solution
Community Advisor
August 2, 2022

@akshaybhujbale The jcr:uuid property is a protected, auto-created, mandatory property. This means that it is created and administered by the system and can only be read (but not changed or deleted) by the client. The job of the jcr:uuid property is to expose the universally unique identifier (UUID) of its node

 

https://developer.adobe.com/experience-manager/reference-materials/spec/jcr/1.0/4.9_Referenceable_Nodes.html#:~:text=The%20jcr%3Auuid%20property%20is,(UUID)%20of%20its%20node.

 

 

    A
    akshaybhujbaleAuthor
    Level 6
    August 2, 2022

    Thanks @jagadeesh_prakash 

    When it will be created after creating page/assets or after publishing it?

    Also what are the protected and auto created properties?

    Jagadeesh_Prakash
    Community Advisor
    Jagadeesh_PrakashCommunity Advisor
    Community Advisor
    August 2, 2022

    @akshaybhujbale 

     

    Once can note that jcr:uuid indeed was considered as a candidate initially, but was not further considered since:

    When asset is replicated to publish instance then on publish instance new jcr:uuid will be created.
    As per section 3.3 of JCR 2.0 spec , this identifier is unique in the workspace, but it never guarantees lifetime uniqueness 

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