[jbossseam-issues] [JBoss JIRA] Resolved: (JBSEAM-3032) count query used by Query is not compliant JPQL
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https://jira.jboss.org/jira/browse/JBSEAM-3032?page=com.atlassian.jira.pl...
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Dan Allen resolved JBSEAM-3032.
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Resolution: Done
I introduced a lightweight feature checking framework on PersistenceProvider (can be
expanded/refactored in the future)
PersistenceProvider has a public enum named Feature
That enum contains features that can be claimed by a provider
By default no features are supported by the base persistence provider (for now)
The HibernatePersistenceProvider supports the Feature WILDCARD_AS_COUNT_QUERY_SUBJECT
The features are added in the @PostConstruct init() method
Clients check for a feature using PersistenceProvider#supportsFeature(Feature)
EntityQuery checks for this feature when determining whether to use a wildcard or the
entity name/alias for the count query subject
count query used by Query is not compliant JPQL
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Key: JBSEAM-3032
URL: https://jira.jboss.org/jira/browse/JBSEAM-3032
Project: Seam
Issue Type: Bug
Components: Framework
Affects Versions: 2.0.2.GA, 2.1.0.A1
Reporter: Dan Allen
Assignee: Dan Allen
Fix For: 2.2.0.CR1
Attachments: JBSEAM-3032-branch20-v1.txt, JBSEAM-3032-trunk-v1.txt,
JBSEAM-3032-trunk-v2.txt
Original Estimate: 1 hour
Remaining Estimate: 1 hour
The count query used by getCountEjbQl() in Query is not compliant JPQL. It should be:
select count(Entity) from Entity entity
instead of
select count(*) from Entity entity
Where "entity" is the class name of the entity (for instance, Person). You can
test this by using TopLink or OpenJPA.
All we need to do is replace the * with the name of the Entity. (We don't even need
to fish for the alias used in the query).
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