How do you order a oneToMany join table in hibernate criteria

Question

Say I have a class Mother with a oneToMany mapping to Kittens

@Entity @org.hibernate.annotations.Entity(dynamicUpdate = true) @Table(name = "Mother")  .....  @OneToMany(fetch = FetchType.LAZY, targetEntity=Kittens.class, cascade=CascadeType.ALL) @JoinColumn(name="motherId") private List<Kittens> kittens; 

I am using the criteria Api to provide a list

Criteria criteria = this.getSession().createCriteria(Mother.class); Criterion MotherType = Restrictions.eq("type", "domesticated"); criteria.add(MotherType) .addOrder(Order.asc("motherName")) .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY) .setFetchMode("kittens", FetchMode.JOIN) // .addOrder(Order.asc("kittens.kittenName")); List test = criteria.list(); 

Works fine until I try to add the order of the kittens field kittenName

I've also tried adding the @OrderBy(value="kittenName") annotation under the Kitten @OneToMany(...etc ) which works fine until you use the criteria API and this order will precede any other order statements in the sql.

Cheers in advance for any help...

Answer 1

You need to add the @javax.persistence.OrderBy annotation to your kittens list.

@OneToMany(fetch = FetchType.LAZY,            targetEntity=Kittens.class,            cascade=CascadeType.ALL) @JoinColumn(name="motherId") @OrderBy("kittenName") private List<Kittens> kittens; 

@See

• Hibernate Annotations Reference Guide
• Chapter 2.2.5. Mapping entity associations/relationships
• Subchapter 2.2.5.3.4. Indexed collections (List, Map)