Re: [Hibernate] Selecting rows only from a particular table

[Dmitri C. <di...@co...>]

Hi,

I think you'd be better off here: http://forum.hibernate.org/

The answer to your question is lazy loading, see
http://www.hibernate.org/hib_docs/v3/reference/en/html/performance.html#performance-fetching-lazy

cheers,
dim


On 4/23/07, The Rhythmic <the...@gm...> wrote:
>
> Hi,
>
> Am using Hibernate with Java Persistence API.
>
> The question, in short is:
> How do I restrict the Java Persistence API to access rows only from one
> table & not from any other table i.e. Even though it might require access
> to other tables, it should access rows only from one particular table. How
> to enforce this?
>
> In detail, this' the problem:
>
> We have a data model like this:
>
> Level 1 class
> ......within this there is Level 2 class
> ............within Level 2, there is Level 3 class
>
> it's just like XML data where we have a tag within another tag & so on.
> The root tag is Level1 & the tags in the next level are Level2, let's
> assume...and so on.
>
> i.e. an instance of Level1 class can contain many objects of Level2 within
> it. And an instance of Level2 class can contain many objects of Level3
> within it. Within the Level1 class, we have methods to fetch corresponding
> objects from Level2. & the same for Level2 class. So, using Java Persistence
> API, when accessing instances of Level1, they automatically fetch
> corresponding instances of Level2 & Level3. Level1 has a corresponding table
> in the database called Level1. & the same with Level2 & Level3. How do I
> restrict the Java Persistence API to fetch objects only from Level1 table &
> not from other tables?
>
> Thanks.
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> hibernate-devel mailing list
> hib...@li...
> https://lists.sourceforge.net/lists/listinfo/hibernate-devel
>
>