[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2952) Support for referencing non-root entities in Criteria SQL expressions

[Günter Graf (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33595#action_33595 ] 

Günter Graf commented on HHH-2952:
----------------------------------

Hi, Sergey!

You are completely right that using reflection is slower than your approach and patching a sigle file is like no effort.
But this decision is not in my hand (infrastructure vs. engineering), so I was looking for alternatives.


> Support for referencing non-root entities in Criteria SQL expressions
> ---------------------------------------------------------------------
>
>                 Key: HHH-2952
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2952
>             Project: Hibernate Core
>          Issue Type: Improvement
>          Components: query-criteria
>    Affects Versions: 3.2.2
>         Environment: Java 5, MySQL 5.0, Eclipse 3.2
>            Reporter: Jacob Gyllenstierna
>            Assignee: Diego Plentz
>         Attachments: RestrictionsExt.java, SQLAliasedCriterion.java, SQLAliasedProjection.java
>
>
> It would be very helpful to be able to reference non-root entities in Criteria SQL restrictions and projections using placeholders similar to {alias}. A very simple but uninteresting example:
> criteria.createAlias("group", "g");
> criteria.add(Restrictions.sqlRestriction("{g}.id=:groupId"));

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