How to join Multiple tables using hibernate criteria where entity relationship is not direct?

Question

I have three entities. those are:

@Entity
public class Organization {
    @Id
    private long id;
    @Column
    priv         


        

Answer 1

you can do like this :

Criteria accountCriteria = getCurrentSession().createCriteria(Account.class,"acc");
Criteria bookCriteria =  accountCriteria .createCriteria("book","b");
Criteria orgCriteria =  bookCriteria.createCriteria("organization","org");
orgCriteria.add(Restrictions.eq("name", "XYZ"));

ProjectionList properties = Projections.projectionList();
properties.add(Projections.property("name"));
properties.add(Projections.property("id"));

accountCriteria.setProjection(properties);
accountCriteria.list();

Answer 2

Another way

public List<Account> getAccountListByOrgName(String name){
    return sessionFactory.getCurrentSession().createCriteria(Account.class)
                .createAlias("book", "book")
                .createAlias("book.organization", "organization")
                .add(Restrictions.eq("organization.name", name))
                .list();
}