[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5303) @Cachable has no effect

[Paul Bakker (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=37432#action_37432 ] 

Paul Bakker commented on HHH-5303:
----------------------------------

I agree it's difficult to choose a reasonable default because of the different implementation and consequences. Do you have any idea which setting "most" people use? READ_WRITE seems reasonable to me, but I'm really not sure about how people use it. Besides that it would be good to log a warning during startup that a default strategy has been used. 

Making the default override-able globally in persistence.xml would be very useful.

> @Cachable has no effect
> -----------------------
>
>                 Key: HHH-5303
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5303
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: caching (L2), entity-manager
>    Affects Versions: 3.5.2
>         Environment: Tested on HSQL (included in testcase) and MySQL database
>            Reporter: Paul Bakker
>         Attachments: testcase.zip
>
>
> The JPA 2.0 @Cachable annotation has no effect at all. Just putting @Cachable on a class is not enough to enable caching. You must also configure a concurrency strategy with either @Cache or a hibernate.ejb.classcache setting in persistence.xml. 
> If those settings are in place, @Cacheble still has no effect. Entities are cached, but @Cachable(false) doesn't change this behavior. 
> I included a Maven example project that tests this behavior. The project has two profiles to switch between Hibernate and EclipseLink:
> mvn -P hibernate clean test
> mvn -P eclipselink clean test

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