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https://issues.apache.org/jira/browse/OPENJPA-655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028902#comment-13028902
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Pinaki Poddar commented on OPENJPA-655:
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I appreciate the support for this feature.
A type-level filter that overlays on user queries would also be parameterized
for majority of use cases. For example, an application may use the current user
name/location as the global type-level filter parameter on some entities.
Hence we need a requirement spec on how these query binding parameters are
specified and how their values are sourced at runtime.
Those of you who are interested in this type-level filtering, please suggest
the syntax of filter specifications.
The patch has laid out the design of this feature and the touchpoints in
existing query execution pathway to sufficient details. But it has not
addressed the parameter binding issue as well.
> Class level query filter
> -------------------------
>
> Key: OPENJPA-655
> URL: https://issues.apache.org/jira/browse/OPENJPA-655
> Project: OpenJPA
> Issue Type: New Feature
> Components: query
> Reporter: Pinaki Poddar
> Assignee: Pinaki Poddar
> Attachments: class-filter.patch.txt
>
>
> A class-level query filter that applies to all queries implicitly is a useful
> functionality and available in similar software product [1].
> The base functionality is:
> a) A class can be annotated with a query
> @Entity
> @Filter(query="SELECT x FROM PObject x WHERE x.field = f1 AND x.status =!
> DONE")
> public class PObject {...}
> b) Any query on class PObject will augment the class-level filter predicates.
> c) @Filter query can be parametrized. The parameters can be set on current
> FetchPlan.
> Will attach a draft/prototype for such functionality. Please take a look and
> let me know your valued comments.
> [1] http://www.hibernate.org/hib_docs/reference/en/html/filters.html
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