Christophe Jelger created SLING-6785:
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Summary: 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"}}
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 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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