Filters on collections are ignored
----------------------------------
Key: ANN-786
URL:
http://opensource.atlassian.com/projects/hibernate/browse/ANN-786
Project: Hibernate Annotations
Issue Type: Bug
Affects Versions: 3.2.0.ga
Environment: Hibernate 3.2; MySql 5.0.51a; Java 1.6
Stand-alone app - no server
Reporter: Eric Ford
I have two classes: Topic and Narrative. A topic has one-to-many narratives. I want to
impose a filter such that only narratives with a particular state value are returned when
I look up a topic.
@Entity
public class Topic
{
//unrelated attributes not shown
private Set<Narrative> narratives = new HashSet<Narrative>();
@OneToMany(mappedBy="topic")
@Filter(name="byState", condition=":state = state")
public Set<Narrative> getNarratives()
{
return narratives;
}
public void setNarratives(Set<Narrative> narratives)
{
this.narratives = narratives;
}
}
@Entity
@FilterDef(name="byState", defaultCondition=":state = state",
parameters=@ParamDef(name="state",type="string"))
@Filter(name="byState", condition=":state = state")
public class Narrative
{
private String content = "";
private String state = "";
private Topic topic = null;
//getters and setters not shown
}
@Test
public void FindSystemById(){
//for this test, the indicated topic has two narratives,
//one is "published" and the other is "draft"
session.enableFilter("byState").setParameter("state",
"published");
Topic result = null;
result = TopicDao.findById(new Long(1), noLock); //
assertNotNull(result); //this always passes, as expected
System.out.println(result.getNarratives().size(); //this always returns 2
assertTrue(result.getNarratives().size() == 1); //this always fails, obviously
}
The sql code does not show the filter being applied when fetching the collection.
I've tried variations including adding the @Filter annotation to the getNarratives()
method only and adding the @Filter annotation to the Narrative class only. I've also
tried putting the @FilterDef annotation on the Topic class instead of the Narrative class.
None of these variations has given the desired result of only one narrative returned from
the getNarratives() method. I am coding with Java 1.6, Hibernate 3.2, and MySql 5.0.51a
using Eclipse 3.4 and testing with JUnit 4.
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