Hibernate criteria query on different properties of different objects

Question

Suppose I have classes like:

class A {
 B getB();
 C getC();
}

class B {
 String getFoo();
}

class C {
 int getBar();
}

and I want to filter

Answer 1

You only need to create one criteria object like so.

Criteria criteria = session.createCriteria(A.class);
criteria.add(Restriction.disjunction()
    .add(Restriction.eq("b.foo", "something"))
    .add(Restriction.eq("c.bar", 0)));