Bundle dependency

Hi All,

1] What exactly does the term "Bundle dependency" mean?

2] How is Bundle dependency resolved.

Any thoughts/snippet of code would be helpful.

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Runal_TrivediAccepted solution

Level 6

Bundle Dependency:

Bundle Dependency Resolutions:

Resolutions of bundle dependencies is taken care by OSGI Installer. Basically as soon as you install a bundle, it checks all the bundle that is depends on (the bundle you are installing) are already present in your OSGI Container or not, if all the required bundles are present then only it will activate the bundle you are installing. Refer to following link for more details: https://sling.apache.org/documentation/bundles/osgi-installer.html
Some more links:
- http://blog.christianposta.com/osgi/understanding-how-osgi-bundles-get-resolved-part-i/

- Runal

Level 9

Hi Runal/Scott,

Thanks a lot for your reply.

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Runal_TrivediAccepted solution

Level 6

Bundle Dependency:

Bundle Dependency Resolutions:

Resolutions of bundle dependencies is taken care by OSGI Installer. Basically as soon as you install a bundle, it checks all the bundle that is depends on (the bundle you are installing) are already present in your OSGI Container or not, if all the required bundles are present then only it will activate the bundle you are installing. Refer to following link for more details: https://sling.apache.org/documentation/bundles/osgi-installer.html
Some more links:
- http://blog.christianposta.com/osgi/understanding-how-osgi-bundles-get-resolved-part-i/

- Runal

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Level 10

Assume you have bundleA in AEM. Next assume that this bundle has a dependency on a Java API - for example -- say org.json.simple.JSONObject.

You can place this JSON API in another bundle in AEM - say bundleB. Now bundleA has a dependency on bundleB.

In this use case - you would need to deploy bundleB first and place it into an active state. Then you can deploy bundleA.

To see this in action - read this community article:

You deploy 2 bundles in this article.

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