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https://issues.apache.org/jira/browse/JDO-652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018380#comment-13018380
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Andy Jefferson commented on JDO-652:
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Re: Adding methods to PMF to define the query
No problem with that (as mentioned before on the jdo-dev list some time ago).
Re: Calling things XXXCriteria
-1. This is a query, just like one formed from a single-string, or declarative
API, in a form that can be executed. There is nothing in the dictionary
definition of "criteria" that means it is somehow more suitable for this type
of query. The difference to a single-string query, or a query generated by the
declarative API is that is typesafe and refactorable. All queries (whether
single-string,declarative, or via this API) have "criteria". Just because some
other API calls its API "Criteria" is not a reason in itself, and could be
argued a reason not to, to avoid possible confusion.
Re: putting methods on the PM
Are you planning on doing that for a normal Query too? because they have no
inherent need to be created from a PM either. Consistency please.
> 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
> Fix For: JDO 3 maintenance release 1
>
> Attachments: 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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