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KaibalyaJena_123
Level 2
July 18, 2023
Solved

How do I fetch the number of versions present in an asset in AEM programmatically?

Hi everyone,

 

I have a requirement to fetch the number of versions present in an Asset using a servlet.

Can anyone please provide some references?

 

Thanks in advance.

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iamnjain
iamnjainAccepted solution
Community Advisor
July 18, 2023

Hello @kaibalyajena_123 

As I understood your requirement, you need the number of versions created for a given asset.

 

You can use VersionHistory Interface to get all the versions and their details. Please refer below doc link for available methods.

https://developer.adobe.com/experience-manager/reference-materials/spec/jsr170/javadocs/jcr-2.0/javax/jcr/version/VersionHistory.html


Do let me know if you face any issues or you have different requirement?
Hope it helps.

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3 replies

iamnjain
Community Advisor
iamnjainCommunity AdvisorAccepted solution
Community Advisor
July 18, 2023

Hello @kaibalyajena_123 

As I understood your requirement, you need the number of versions created for a given asset.

 

You can use VersionHistory Interface to get all the versions and their details. Please refer below doc link for available methods.

https://developer.adobe.com/experience-manager/reference-materials/spec/jsr170/javadocs/jcr-2.0/javax/jcr/version/VersionHistory.html


Do let me know if you face any issues or you have different requirement?
Hope it helps.

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    aanchal-sikka
    Community Advisor
    aanchal-sikkaCommunity Advisor
    Community Advisor
    July 18, 2023

    Hello @kaibalyajena_123 

     

     

         eg:
     AssetVersionManager versionManager = resolver.adaptTo(AssetVersionManager.class);

     // to get existing versions
     Iterator<AssetVersion> versions = versionManager.listVersions("/path/to/asset/document.pdf");
     ...

     

    you can readily use the AssetVersionManager API.

    - Get path of asset in servlet

    - Get resourceResolver from Request

    - Adapt to AssetVersionManager 

    - List all versions of the related asset./

     

     

    Details are available on https://developer.adobe.com/experience-manager/reference-materials/6-5/javadoc/com/adobe/granite/asset/api/AssetVersion.html

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    Aanchal Sikka
      Nishant-Singh
      Adobe Employee
      Nishant-SinghAdobe Employee
      Adobe Employee
      July 18, 2023

      If you want you use JCR API then below code snippet you can use -

      final VersionManager versionManager = node.getSession().getWorkspace().getVersionManager(); final VersionHistory versionHistory = versionManager.getVersionHistory(node.getPath()); final VersionIterator versionIter = versionHistory.getAllVersions();

       if you want you use Resource API then you can use 

      AssetVersionManager versionManager = resolver.adaptTo(AssetVersionManager.class); Iterator<AssetVersion> versions = versionManager.listVersions("/content/dam/sample.jpg");
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