[hibernate-issues] [Hibernate-JIRA] Commented: (ANN-630) @ManyToMany and @Index
Emmanuel Bernard (JIRA)
noreply at atlassian.com
Thu Aug 9 12:13:13 EDT 2007
[ http://opensource.atlassian.com/projects/hibernate/browse/ANN-630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_27787 ]
Emmanuel Bernard commented on ANN-630:
--------------------------------------
Test is in org.hibernate.test.annotations.manytomany.Cat (commented)
> @ManyToMany and @Index
> ----------------------
>
> Key: ANN-630
> URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-630
> Project: Hibernate Annotations
> Issue Type: Bug
> Components: binder
> Affects Versions: 3.3.0.ga
> Environment: Windows Vista
> java version "1.5.0_11"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03)
> Java HotSpot(TM) Client VM (build 1.5.0_11-b03, mixed mode)
> Reporter: Peter K. Guldbæk
>
> I have trouble adding an index to a column of a table which is part of a many-to-many property mapping. The following example causes a NullPointerException when generating the DDL (the exception can be seen at the end of my post):
> @Entity @Table(name="usr")
> public class User implements Serializable
> {
> @Id @GeneratedValue(strategy=GenerationType.AUTO)
> public Integer id;
>
> @ManyToMany(targetEntity=Target.class, cascade={})
> @Index(name="fkey_usr_target", columnNames="usr_id")
> @JoinTable(name="usr_target",
> joinColumns=@JoinColumn(name="usr_id"),
> inverseJoinColumns=@JoinColumn(name="target_id"))
> public Collection<Target> targets;
> }
> @Entity @Table(name="target")
> public class Target implements Serializable
> {
> @Id @GeneratedValue(strategy=GenerationType.AUTO)
> public Integer id;
>
> @Basic
> public String myValue;
> }
> NullPointerException thrown when an @Index annotation is used with a @ManyToMany:
> java.lang.NullPointerException
> at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1594)
> at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:733)
> at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:498)
> at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:277)
> at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1115)
> at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:56)
> at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:299)
> at org.hibernate.tool.ant.Hbm2DDLExporterTask.execute(Hbm2DDLExporterTask.java:45)
> at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:183)
> at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
> at org.apache.tools.ant.Task.perform(Task.java:348)
> at org.apache.tools.ant.Target.execute(Target.java:357)
> at org.apache.tools.ant.Target.performTasks(Target.java:385)
> at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
> at org.apache.tools.ant.Project.executeTarget(Project.java:1298)
> at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1181)
> at org.apache.tools.ant.Main.runBuild(Main.java:698)
> at org.apache.tools.ant.Main.startAnt(Main.java:199)
> at org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
> at org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
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