Hi,

Does hibernate allow to select objects after some property of its subclass?

Let's say I have the object
Person {
String name;
int age;
...
}
and its subclass
Student {
String university;
...
}

can I generate a HQL query to get all persons which are students and with university="Harvard"?

I know about .class property for an object but I need somehow to access the property "university" for Person objects.

br

from Student s where s.university = "Harvard"

Yes, but if I have an object that has a property of type Person and I want to make the following select:

from MyObject as obj
where obj.person.university="Harvard"

I got an exception saing property university is unknown for Person object.
I also tried to use the .class special property as follows:

from MyObject as obj
where obj.person.class = Student
and obj.person.university="Harvard"

but I got the same exception

What about:

select obj from MyObject obj, Student s where s.university = 'Harvard' and obj.person = s

when I use joins, subselects or select for multiple type of objects I get some proxies objects, with null values for all properties....

alesj, thanks, it works now....