[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5755) javax.persistence.criteria.Expression.as() is broken

[Guy Veraghtert (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=42709#action_42709 ] 

Guy Veraghtert commented on HHH-5755:
-------------------------------------

Not sure what you mean: using the patch org.hibernate.dialect.function.CastFunction.render(Type, List, SessionFactoryImplementor) will be called, which will ask the dialect for the cast type name (e.g. in the test: org.hibernate.dialect.H2Dialect.getCastTypeName(int) is called, resulting in SQL: ... where cast(product0_.QUANTITY as varchar(255))=?)

Do you need additional information?

> javax.persistence.criteria.Expression.as() is broken
> ----------------------------------------------------
>
>                 Key: HHH-5755
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5755
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: entity-manager
>    Affects Versions: 3.6.0
>            Reporter: Artem Troitskiy
>            Priority: Minor
>         Attachments: HHH-5755.patch
>
>
> When I try to execute criteria query containing typecast to {{String}}
> {noformat}
> CriteriaQuery<Product> criteria = builder.createQuery( Product.class );
> Root<Product> from = criteria.from( Product.class );
> criteria.where(builder.like(from.get("partNumber").as(String.class), "1%"));
> List<Product> result = em.createQuery( criteria ).getResultList();
> {noformat}
> I get the following exception
> {quote}
> org.hibernate.hql.ast.QuerySyntaxException: expecting CLOSE, found '(' near line 1, column 132 [select generatedAlias0 from org.hibernate.ejb.metamodel.Product as generatedAlias0 where cast(generatedAlias0.partNumber as varchar(255)) like :param0]
> {quote}
> As you can see, SQL type is used in HQL {{cast}} clause. It's caused by {{CriteriaQueryCompiler.RenderingContext.getCastType()}} that erroneously return SQL typename instead of Hibernate typename.

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