Hibernate/Spring:在@Transactional中加载惰性集合时出错

更新:异常发生在行“type.getTranslatableText类型().size()“

干杯

// The service
@Service("categoryTypeService")
@Transactional("transactionManager")
public class CategoryTypeServiceImpl extends AbstractCRUDServiceImpl<CategoryType, Integer> implements CategoryTypeService {

    @SuppressWarnings("unchecked")
    @Override
    public List<CategoryType> getAll() {
        List<CategoryType> list = DAO.getSession().createCriteria(CategoryType.class).list();

        for(CategoryType type : list)   
            type.getTranslatableText().size();  // Access TranslatableText to demonstrate problem

        return list;
    }

}


// The entity
@Entity
@Cache(usage=CacheConcurrencyStrategy.READ_ONLY)
@Configurable(preConstruction=true)
public class CategoryType {

    @Id
    @Column(nullable = false)
    private Integer id;

    @Column(length = 50, nullable = true)
    private String description;

    @Column(name = "TranslatableDescriptionId", nullable = false)
    private Integer TranslatableDescriptionId;

    @OneToMany(fetch=FetchType.LAZY)
    @JoinColumn(name = "Id", referencedColumnName="TranslatableDescriptionId", insertable=false, updatable=false)
    private Set<TranslatableText> translatableText;

    /** getters and setters **/
}