休眠：如何基于作为关联映射一部分的外键列选择单个项目？

public class Person {
   // some other getters/setters omitted.
   void setAddress(Address addy) {
       // omitted
   }

   Address getAddress() {
       // omitted
   }
}

public class Address {
   Integer getId() {
      // omitted
   }
}

<class name=\"Person\">
    <id name=\"id\" column=\"personId\">
        <generator class=\"native\"/>
    </id>

    <many-to-one name=\"address\" 
        column=\"addressId\" 
        unique=\"true\"
        not-null=\"true\"/>
</class>

<class name=\"Address\">
    <id name=\"id\" column=\"addressId\">
        <generator class=\"native\"/>
    </id>
</class>

Person

Address

Person

Address

Address

Person

public Person getPersonFromAddress(Address address) {

    Query query = this.session.createQuery(\"select p from Person as p where p.address_id = \" + address.getId());

    @SuppressWarnings(\"unchecked\")
    Person p = (Person)query.uniqueResult();

    return p;
}