[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3409) ResultTransformers need smarter equals() and hashCode() impls

[Steve Ebersole (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31131#action_31131 ] 

Steve Ebersole commented on HHH-3409:
-------------------------------------

And you cannot just start dropping public APIs from widely used libraries :)

In regards to your last comment, yes for performance the hashCode is cached as part of the state of QueryKey.  However, a far more reasonable solution imo seems to be to make that field transient and to just recalculate it on deserailization instead.  Far better than relying some custom user ResultTransformer implementation's hashCode()

> ResultTransformers need smarter equals() and hashCode() impls
> -------------------------------------------------------------
>
>                 Key: HHH-3409
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3409
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: query-criteria, query-hql
>    Affects Versions: 3.2.6, 3.3.0.CR1
>            Reporter: Steve Ebersole
>            Assignee: Steve Ebersole
>             Fix For: 3.2.x, 3.3.0.CR2
>
>
> Specifically, we need to account for the possibility of distributed query caching considering that the ResultTransformer is part of the cached query key.

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