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<p style="margin: 10px 0 0 0"><a href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=gunnar.morling" class="user-hover" rel="gunnar.morling" style="color: #3b73af; text-decoration: none">Gunnar Morling</a> There were already existing tests of both key() and value() in the ORM testsuite. And they all seem to be doing the right thing. They all tend to use the overly complex "Animal" model from <tt>org.hibernate.test.hql</tt>, so I wrote a more specific domain model and tests. By my results were the same (for key at least, I still have to test value) in terms of they all worked as I would expect. So my model was:</p>
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<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> <span class="code-keyword" style="color: #000091">enum</span> AddressType {
HOME,
WORK,
BUSINESS
}
@Embeddable
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> class Address {
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Integer</span> id;
<span class="code-object" style="color: #910091">String</span> street;
<span class="code-object" style="color: #910091">String</span> city;
}
@Entity(name = <span class="code-quote" style="color: #009100">"Contact"</span>)
@Table(name = <span class="code-quote" style="color: #009100">"contact"</span>)
<span class="code-keyword" style="color: #000091">public</span> <span class="code-keyword" style="color: #000091">static</span> class Contact {
@Id
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Integer</span> id;
<span class="code-object" style="color: #910091">String</span> name;
@ElementCollection
@MapKeyEnumerated(EnumType.STRING)
@MapKeyColumn(name = <span class="code-quote" style="color: #009100">"addr_type"</span>)
Map<AddressType, Address> addresses = <span class="code-keyword" style="color: #000091">new</span> HashMap<AddressType, Address>();
}
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<p style="margin: 10px 0 0 0">Below are the HQL queries I ran along with the generated SQL. Note that <tt>addr_type</tt> is the map key column.</p>
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s.createQuery( <span class="code-quote" style="color: #009100">"from Contact c join c.addresses a where key(a) = 'HOME'"</span> ).list();
- gives -
select ... where addresses1_.addr_type='HOME'
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s.createQuery( <span class="code-quote" style="color: #009100">"from Contact c where key(c.addresses) = 'HOME'"</span> ).list();
- gives -
select ... where addresses1_.addr_type='HOME'
</pre>
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s.createQuery( <span class="code-quote" style="color: #009100">"select key(a) from Contact c join c.addresses a"</span> ).list();
- gives -
select addresses1_.addr_type as col_0_0_ ...
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s.createQuery( <span class="code-quote" style="color: #009100">"select key(c.addresses) from Contact c"</span> ).list();
- gives -
select addresses1_.addr_type as col_0_0_ ...
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<p style="margin: 10px 0 0 0">So I am going to need you to show me a test where you see this.</p>
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