hibernate OneToOne a OneToMany a lazy loading

[Vladimir Balaz]

V dokumentacii k Hibernate, kapitola 5.1.13. (one-to-one) sa pise:

|lazy| (optional - defaults to |proxy|): By default, single point 
associations are proxied. |lazy="no-proxy"| specifies that the property 
should be fetched lazily when the instance variable is first accessed 
(requires build-time bytecode instrumentation). |lazy="false"| specifies 
that the association will always be eagerly fetched. /Note that if 
|constrained="false"|, proxying is impossible and Hibernate will eager 
fetch the association!

/Su splnene uvedene podmienky ?



Info wrote:
> Zdravim konferenciu,
>
> vcera som kontroloval ake SQL dotazy generuje moja aplikacia pomocou
> Hibernate. pouzivam LAZY loading a zarazila ma jedna vec. 
>
> ak mam objectA a ten ma OneToOne vztah k objectB , teda v triede ObjectA je
> uvedene:
>
>  @OneToOne(mappedBy = "objectA", fetch = FetchType.LAZY, cascade =
> CascadeType.ALL) 
> private ObjectB o1;
>
> tak aj napriek tomu ze je tam FetchType.LAZY, potom ako sa vykona SQL select
> nad tabulkou pre objectA sa vykonava aj select nad tabulkou pre objectB.
>
> mam aj ObjectC, kde objectA ma s nim vztah OneToMany:
>
> @OneToMany(mappedBy = "objectA", fetch = FetchType.LAZY, cascade =
> CascadeType.ALL) 
> private List<ObjectC> o2;
>
> toto funguje spravne a ziadny SQL dotaz do tabulky objectC nie je.
>
> neviete ako donutit Hibernate aby aj pre vztahy OneToOne pouzival LAZY
> loading a nedotahoval zbytocne data.
>
> dakujem
>
> Ivan
>
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