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From "Matthew T. Adams (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JDO-652) Provision of a statically-typed refactor-friendly query capability for JDOQL
Date Fri, 02 Jul 2010 02:58:50 GMT

    [ https://issues.apache.org/jira/browse/JDO-652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12884518#action_12884518
] 

Matthew T. Adams commented on JDO-652:
--------------------------------------

@Andy:  Based on your response, I must be misunderstanding the QueryDSL approach.  My understanding
is that a prerequisite to the creation of the QueryDSL objects is your object model.  If the
two can be developed in a conventional IDE, please show or explain to me how.  A conventional,
field name-based query api would not require the objects to exist beforehand, unless it used
the as-yet-nonextant language features that we'd like to have.

> Provision of a statically-typed 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
>
>
> 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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