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https://issues.apache.org/jira/browse/ATLAS-1764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15994843#comment-15994843
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Nigel Jones commented on ATLAS-1764:
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I'd be interested in what you see the use cases as.
I can see how a heterogeneous collection could be a convenient way of doing set 
operations - retrieval, deletion, bulk updates. When it comes to any kind of 
association, such as classification, is that then assigned to the actual 
collection object - which implies it really is first class? Or is it just doing 
a set operation on list of entity ids?

> Design and implement Atlas Collections
> --------------------------------------
>
>                 Key: ATLAS-1764
>                 URL: https://issues.apache.org/jira/browse/ATLAS-1764
>             Project: Atlas
>          Issue Type: New Feature
>          Components:  atlas-core
>    Affects Versions: 0.9-incubating
>            Reporter: Sarath Subramanian
>            Assignee: Sarath Subramanian
>              Labels: features
>
> Design and implement Atlas Collections - A first class element in Atlas to 
> group related entities together and perform operations on these collections - 
> associate tags, add/remove entities...
> Operations:
> ---------------
>     a. Create collection(s) with attributes, constraints
>     b. Update existing collection(s)
>     c. Delete collection(s) - soft delete, hard delete
>     d. Retrieve collections by id, name
>     e. Add entity(s) to collection(s)
>     f. Remove entity(s) from collection(s)
>     g. Associate classification(s) to collection(s)
>     h. Disassociate classification(s) from collection(s)



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