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https://issues.apache.org/jira/browse/SLING-6785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15978793#comment-15978793
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Justin Edelson commented on SLING-6785:
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Leaving aside the {{session}} and {{application}} scopes, I think if we want to
make this more generally applicable, we need to use something other than
"request". How about {{@Model(..., scope="adaptable")}} to indicate that we are
scoping to the actual adaptable.
> Add support for scoped lifecycle of sling models
> ------------------------------------------------
>
> Key: SLING-6785
> URL: https://issues.apache.org/jira/browse/SLING-6785
> Project: Sling
> Issue Type: New Feature
> Components: Extensions
> Reporter: Christophe Jelger
> Priority: Minor
>
> Similar to the scopes of JEE beans
> (http://docs.oracle.com/javaee/6/tutorial/doc/gjbbk.html), it would be nice
> to have the possibility to set a scope for sling models.
> For example, a sling model instance could be reused for all the components
> within the same HTTP request, thus avoiding that multiple instances of the
> "same" model are created.
> This could be an attribute of the {{@model}} annotation, for example
> something like:
> {{@model(scope="request")}}
> The {{request}} scope sounds straightforward for a sling model adapted from a
> request.
> For models adapted from a resource, there are scenarios where the resource
> itself is not relevant once the model has been instantiated, so it would
> still be useful to be able to obtain the same model instance for different
> components and resources within the same HTTP request.
> We could possibly have the same scopes than the JEE beans scope: {{request}},
> {{session}}, and {{application}}.
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