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POHibernate tuple criteria queries
 

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    <p>I am trying to create a query using hibernate following the example given in section 9.2 of <a href="http://docs.jboss.org/hibernate/entitymanager/3.5/reference/en/html/querycriteria.html#querycriteria-tuple" rel="nofollow">chapter 9</a></p> <p>The difference with my attempt is I am using spring MVC 3.0. Here is my Address class along with the method i created.</p> <pre><code>@RooJavaBean @RooToString @RooEntity @RooJson public class Address { @NotNull @Size(min = 1) private String street1; @Size(max = 100) private String street2; private String postalcode; private String zipcode; @NotNull @ManyToOne private City city; @NotNull @ManyToOne private Country country; @ManyToOne private AddressType addressType; @Transient public static List&lt;Tuple&gt; jqgridAddresses(Long pID){ CriteriaBuilder builder = Address.entityManager().getCriteriaBuilder(); CriteriaQuery&lt;Tuple&gt; criteria = builder.createTupleQuery(); Root&lt;Address&gt; addressRoot = criteria.from( Address.class ); criteria.multiselect(addressRoot.get("id"), addressRoot.get("street1"), addressRoot.get("street2")); criteria.where(builder.equal(addressRoot.&lt;Set&lt;Long&gt;&gt;get("id"), pID)); return Address.entityManager().createQuery( criteria ).getResultList(); } } </code></pre> <p>The method called <code>jqgridAddresses</code> above is the focus. I opted not to use the "<strong>Path"</strong> because when I say something like <strong>Path idPath = addressRoot.get( Address_.id );</strong> as in section 9.2 of the documentation, the <strong>PathAddress_.id</strong> stuff produces a compilation error.</p> <p>The method above returns an empty list of type <code>Tuple</code> as its size is zero even when it should contain something. This suggests that the query failed. Can someone please advise me.</p>
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