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https://issues.apache.org/jira/browse/OAK-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13934966#comment-13934966
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Felix Meschberger commented on OAK-1502:
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[~chetanm] How is setting _blobStore.cardinality.minimum to 1_ different from 
_cardinality=1..1_ or _cardinality=1..n_ ?

> Make DataStores available to NodeStores
> ---------------------------------------
>
>                 Key: OAK-1502
>                 URL: https://issues.apache.org/jira/browse/OAK-1502
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: core
>            Reporter: Jukka Zitting
>            Assignee: Chetan Mehrotra
>             Fix For: 0.19
>
>         Attachments: OAK-1502.patch
>
>
> For OAK-805 and related issues we need a mechanism for making Jackrabbit 
> DataStores instances available to NodeStore implementations so that they can 
> look up references to binaries stored in such datastores.
> In an OSGi environment the best approach is probably to have DataStores as 
> OSGi services that the NodeStore can look up dynamically through the 
> Whiteboard mechanism. In plain old Java we can just pass a DataStore 
> reference to a NodeStore during initialization.



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