[hibernate-issues] [Hibernate-JIRA] Issue Comment Edited: (HHH-6280) JPA criteria API don't bind numeric field

[William Ashley (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-6280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=43311#comment-43311 ] 

William Ashley edited comment on HHH-6280 at 8/20/11 8:15 PM:
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A couple of ideas off the top of my head:
- Literal expressions could be parameterized if the underlying property is mapped with a UserType (or otherwise is transformed between Java and SQL)
- Perhaps this inlining optimization should have to be explicitly activated by some sort of property-level metadata (a hibernate-specific annotation would probably be required)

Thoughts?

      was (Author: washley):
    A couple of ideas off the top of my head:
- Literal expressions could be parameterized if the underlying property is mapped with a UserType (or otherwise isn't transformed between Java and SQL)
- Perhaps this inlining optimization should have to be explicitly activated by some sort of property-level metadata (a hibernate-specific annotation would probably be required)

Thoughts?
  
> JPA criteria API don't bind numeric field
> -----------------------------------------
>
>                 Key: HHH-6280
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6280
>             Project: Hibernate Core
>          Issue Type: Improvement
>          Components: entity-manager
>    Affects Versions: 3.5.5, 3.6.4
>            Reporter: gwa
>            Assignee: Steve Ebersole
>              Labels: jpa2
>             Fix For: 4.0.0.next
>
>
> When you use JPA criteria API, the numeric value are not binded but are directly set in the SQL instead. 
> eq: you have a generated SQL like:
> select ... from ... where age=12;
> instead of 
> select ... from ... where age=?;
> With '12' as parameter.  
> when you test the following code:
> {code:java}
> @Entity
> public class User {
> 	@Id
> 	private int id;
> 	private int age;
>         ...
> }
> {code}
> {code:java}
>     CriteriaBuilder builder=em.getCriteriaBuilder();
>     CriteriaQuery<User> query=builder.createQuery(User.class);
>     Root<User> root=query.from(User.class);
>     query.select(root).where(builder.equal(root.get("age"),12));
>     em.createQuery(query).getResultList();
> {code}

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