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https://issues.apache.org/jira/browse/JDO-652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16788917#comment-16788917
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Michael Bouschen commented on JDO-652:
--------------------------------------
Thanks Andy.
I switched to Datanucleus SNAPSHOT and both queries testQuery15f and
testQuery16f compile. However they return an unexpected result. The result
class instances are created. They should wrap the selected FullTimeEmplyoee
instance, but instead the wrapped instance is null:
{{Wrong query result: }}
{{query: select into org.apache.jdo.tck.query.api.SampleQueries$EmpInfo from
org.apache.jdo.tck.pc.company.FullTimeEmployee where salary > :sal}}
{{expected: java.util.ArrayList of size 3}}
{{[EmpInfo(worker:Michael), EmpInfo(worker:Craig), EmpInfo(worker:Tillmann)]}}
{{got: java.util.ArrayList of size 3}}
{{[EmpInfo(worker:null), EmpInfo(worker:null), EmpInfo(worker:null)]}}
> Provision of a typesafe refactor-friendly query capability for JDOQL
> --------------------------------------------------------------------
>
> Key: JDO-652
> URL: https://issues.apache.org/jira/browse/JDO-652
> Project: JDO
> Issue Type: New Feature
> Components: api, specification, tck
> Reporter: Andy Jefferson
> Assignee: Michael Bouschen
> Priority: Major
> Fix For: JDO 3.2
>
> Attachments: JDO-652-api-ifTheElse.txt, JDO-652-api-patch-Andy.txt,
> JDO-652-patch4.txt, typesafe.patch, typesafe_manifest.patch
>
>
> There are various querying capabilities of this type around. JPA2 has its
> Criteria query API. Third party solutions like QueryDSL also exist, in its
> case providing a JDOQL implementation (as well as JPQL, and HQL). We should
> seriously consider introducing something along these lines in the JDO2.4
> timeframe.
> There is a comparison of JPA Criteria with QueryDSL over at
> http://source.mysema.com/forum/mvnforum/viewthread_thread,49
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