On Thu, May 29, 2008 at 1:30 PM, Ifnu _ <[EMAIL PROTECTED]> wrote:
>>> p.comment is null
>
> eh bentar2, kan relationship antara BlogPost dan BlogComment itu
> OneToMany, dan properti comments harusnya sebuah list :
>
> @OneToMany(mappedBy="post")
> List<BlogComment> comments = new ArrayList<BlogComment>();
>
> tetep nggak nih kondisi wherenya p.comments is null ? nggak masalah ya
> mau collection atau single value?
>

gunakan is empty
http://www.hibernate.org/hib_docs/v3/reference/en/html/queryhql.html#queryhql-expressions

Untuk single property, harus is null, karena null handling di database
memerlukan perlakuan khusus.

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