Re: [hibernate-dev] Still true with Javassist? Any final method prevents Hibernate from creating single-ended association proxies
Isn't that totally independent from a method beeing final or not?
If I have a method:
public int getSum() {
return field1 + field2;
}
Then this would trigger the initialization of the entity (in JavassistLazyInitializer I
assume)
and
public final int getSum() {
return field1 + field2;
}
would not? (if field1 and field2 are persistent fields and field-based access is used)
Only yesterday I've stumpled upon a related issue in equals(): I've compared a
persistent field of two instances
of the same entity and that _did not_ trigger the initialization of the other instance
proxy. So there I had to use
"If (this.field.equals(other.getField())) { ..." instead of If
(this.field.equals(other.field)) { ..."
and no method of that entity was final.
On 08.07.2011, at 11:26, Emmanuel Bernard wrote:
If your toString method ends up calling some of the entity state
(likely), the initialization won't be triggered since you will call your getters from
inside the instance. So it's a good general rule to mandate non final methods on
entities.
Emmanuel
On 8 juil. 2011, at 09:59, Robin Sander wrote:
>
> Hi all,
>
> excuse me if this list isn't indented for such a question, but I asked this
question about a year ago in the forums
> without any answers and I think it should be easy to answer for any Hibernate core
developer:
>
> According to Hibernate's (3.6.5) reference documentaion (Section 21.1.3,
Single-ended association proxies),
> such a single-ended association proxy can't be constructed by Hibernate if it
contains "any final methods".
>
> My question is, does this restriction apply to getters/setters of persistent fields
only or really to any method in an entity class?
> As far as I can see Javassist is able to modify final methods as well and even if it
were not, why should a method like
> public final String toString() {
> return "...";
> }
> prevent Hibernate from using a proxy?
>
> Thanks in advance,
>
> Robin.
>
>
> _______________________________________________
> hibernate-dev mailing list
> hibernate-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/hibernate-dev