No identifier specified for entity

Martin_L · **Joined:** Mon Mar 21, 2005 1:39 pm **Posts:** 28

Hallo together,
using the annotation @EmbeddableSuperclass i get the following error message.
I would be really glad about help!

Hibernate version:
Hibernate3 RC1
Hibernate Annotations 3.1 beta 6

Code extracts:

Code:

import javax.persistence.*;

/**
 * @archetype PartyPlaceThing
 * generated code by ACG 
 */
@EmbeddableSuperclass
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS) 
public abstract class _Wohnort
{
    @Id(generate=GeneratorType.AUTO)
    private int primaryKey;
.
.
.
.

}

Code:

package assocTest;
import javax.persistence.*;

@Entity(access = AccessType.FIELD)
public class Wohnort extends _Wohnort {
   public Wohnort (){
       super(); 
    } 
.
.
.
.
}

Full stack trace of any exception that occurs:
ERROR - could not complete schema update
org.hibernate.AnnotationException: No identifier specified for entity: assocTest.Wohnort
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:645)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:256)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:191)
at org.hibernate.cfg.Configuration.generateSchemaUpdateScript(Configuration.java:817)
at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:144)
at main.HibernateUtil.<clinit>(HibernateUtil.java:36)
at testcases.AssocTestCase.setUp(AssocTestCase.java:82)
at junit.framework.TestCase.runBare(TestCase.java:125)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:474)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:342)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:194)
Initial SessionFactory creation failed.org.hibernate.AnnotationException: No identifier specified for entity: assocTest.Wohnort
INFO - cleaning up connection pool: jdbc:mysql://127.0.0.1/praktikum
INFO - duplicate import: assocTest.Wohnort->Wohnort

Regards,
Martin

emmanuel · **Posted:** Tue Oct 18, 2005 3:05 am

@EmbeddableSuperclass(access=AccessType.FIELD)

Martin_L · **Joined:** Mon Mar 21, 2005 1:39 pm **Posts:** 28

Hi Emmanuel,
thank you for the hint, but i tried this one, too, just getting another exception:

ERROR - could not complete schema update
org.hibernate.AnnotationException: Unable to find entity assocTest._Person
at org.hibernate.cfg.AnnotationBinder.bindFkSecondPass(AnnotationBinder.java:1636)
at org.hibernate.cfg.FkSecondPass.doSecondPass(FkSecondPass.java:32)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:214)
at org.hibernate.cfg.Configuration.generateSchemaUpdateScript(Configuration.java:817)
at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:144)
at main.HibernateUtil.<clinit>(HibernateUtil.java:36)
at testcases.AssocTestCase.setUp(AssocTestCase.java:82)
at junit.framework.TestCase.runBare(TestCase.java:125)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:474)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:342)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:194)
INFO - cleaning up connection pool: jdbc:mysql://127.0.0.1/praktikum
Initial SessionFactory creation failed.org.hibernate.AnnotationException: Unable to find entity assocTest._Person

The entity assocTest._Person hat the same annotations like the other classes and existst of course.... :

Code:

@EmbeddableSuperclass(access=AccessType.FIELD)
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS) 
public abstract class _Person
{
   .
   .
   .
}

Hope, someone of you has an idea.

Regards,
Martin

emmanuel · **Posted:** Mon Oct 24, 2005 6:32 am

do not use the superclass name, use a regular entity name

xiangya · **Joined:** Tue Sep 13, 2005 10:57 pm **Posts:** 10

pls change to @Id(...=generatorType.TABLE)
for table_per_class strategy

Martin_L · **Joined:** Mon Mar 21, 2005 1:39 pm **Posts:** 28

Hallo,
thank for you help!
Now it works!

Regards,
Martin