[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-5964) IllegalArgumentException (Parameter value ... was not matching type ...) for JPA-Query: Worked with 3.3.1.GA

[Sebastian Hasait (JIRA)]

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Hasait updated HHH-5964:
----------------------------------

    Attachment: hb.hhh5964.zip

Eclipse 3.6 project containing JUnit 4.8.2 test case which fails with the IllegalArgumentException.

> IllegalArgumentException (Parameter value ... was not matching type ...) for JPA-Query: Worked with 3.3.1.GA
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-5964
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5964
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: entity-manager
>    Affects Versions: 3.6.1
>            Reporter: Sebastian Hasait
>         Attachments: hb.hhh5964.zip
>
>
> We have switched from core-3.3.1.GA and entity-manager-3.4.0.GA to 3.6.1.Final.
> Now some queries stopped working.
> This is caused by an additional type check in org.hibernate.ejb.AbstractQueryImpl#registerParameterBinding at 359 which does not care about hibernate-proxies. This method is called from QueryImpl#setParameter(...). This call doesn't exist in 3.4.0.GA.
> I think the proxies should be as transparent as possible. So if I get a proxy from some relation getter and put this into a query as parameter, there should be no exception.
> Because the proxy cannot know the concrete type without initializing the proxy-target (reading discriminator from database) there remain four solutions:
> 1.) Hibernate is not checking the type for proxies OR only ensures expected type and proxy-type are related.
> 2.) Hibernate initializes the parameter and the type checking works without exception.
> 3.) Our DAO initializes the parameter before passing.
> 4.) We rewrite our queries to pass only the PK
> I would prefer 1 or 2. :-)
> Will attach test case asap.

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