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In trouble with Ordering

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cavallieri.carlo

Post subject: In trouble with Ordering

Posted: Wed Aug 30, 2006 6:09 am

Newbie

Joined: Wed Aug 30, 2006 5:57 am
Posts: 3

Hibernate version: 3.1

With the following class

Code:

class Parent {
    private Child child;

    // getters and setters ...
}

class Child {
    private String name;

    // getters and setters ...
}

I'm trying to do this "order by"

Code:

Criteria query = session.createCriteria(Parent.class);
query.addOrder(Order.desc("child.name"));

query.list();

but i get this Exception:

Code:

(org.hibernate.QueryException) org.hibernate.QueryException: could not resolve property: child.name of: Parent

How can i solve this ?

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valeri.felberg

Post subject: Try an association alias

Posted: Mon Sep 04, 2006 6:58 am

Newbie

Joined: Mon Sep 04, 2006 6:53 am
Posts: 1

An association alias worked for me in a similar case:

query.createAlias("child", "c");
query.addOrder(Order.desc("c.name"));

where an alias can even be equal to the association name:

query.createAlias("child", "child");
query.addOrder(Order.desc("child.name"));

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