Hi there,
I have an odd question. It is not a real problem, because I have a working work-around. But it is something that made me investigate a lot without any result.
Here is my problem:
I have a many-to-one relationship the is lazyly fetched.
Code:
@ManyToOne(fetch = FetchType.LAZY, targetEntity = AbstractLibraryQuestion.class,
cascade = { CascadeType.PERSIST, CascadeType.MERGE,
CascadeType.REFRESH })
@JoinColumn(name = "LB_QSTN_ID")
public T getLibraryQuestion() {
return libraryQuestion;
}
When I call this method getLibrbaryQuestion() I sometime get an object that has the concrete class AbstractLibraryQuestion and sometimes one that comes from the cache, where the class name is AbstractLibraryQuestion$$EnhancerByCGLIB$$9a9e8ce9
Here is my code how to deal with it:
Code:
AbstractLibraryQuestion tmq;
Object proxy = this.getLibraryQuestion();
System.out.println("proxy.getClass().getName() = " + proxy.getClass().getName());
if (proxy instanceof AbstractLibraryQuestion) {
tmq = (AbstractLibraryQuestion) proxy;
} else {
tmq = AbstractLibraryQuestion.class.cast(((HibernateProxy) proxy).
getHibernateLazyInitializer().getImplementation());
}
This works just fine, but I still would like to know why my object sometimes is cached and sometimes not.
I'd be happy about any information.
Thanks,
Johannes
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