Hibernate queries where with many-to-many fields
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28-04-2021 - |
题
I have a model A that has a many to many with B, which has a property c. Like the following.
class A {
@ManyToMany
List<B> bs;
}
class B {
@ManyToMany
List<A> as;
String c;
}
Is there a way (using detached criteria) to do a query like this: select all As where there exists a b in bs where b.c = some value? And if I can how would I do this?
解决方案 2
I research some more and I found a way to do it. For those interested:
DetachedCriteria.forClass(A.class)
.addAlias("bs", "b")
.add(Restrictions.eq("b.c", c);
其他提示
I think this should do the trick:
from A a inner join a.bs b where b.c = ?
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