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Re: [eclipselink-users] EclipseLink persisting error (Missing mapping for field) 
Hello Gordon,
In my case it is sufficient to change referencedColumnName = "id" into referencedColumnName = "ID". It has no problems with name="family_id". It seems that eclipselink is only case sentive for referencedColumnNames. 

I will report this as a bug.

Thanks!
Leon


Gordon Yorke wrote:

Hello Leon,
   Update the industrialFamily mapping to have uppercase columns :
@ManyToOne(cascade=PERSIST)
  @JoinColumn(name="FAMILY_ID", referencedColumnName = "ID")
  private IndustrialFamily industrialFamily;

If this solve your problem please file a bug.
--Gordon

Leon Derks wrote:

Hello

I have another problem.
When I am persisting an object using eclipselink, I get a Missing mapping for field error. (see stacktrace below) 
Saving the object with Hibernate gives no error.
I have also added a part of my jpa mapping. The strange thing is that it is working correctly with hibernate. 

Is this a bug?

@Entity
@Table(schema="PLI", name = "PLI_CATALOG_PRODUCTS")
@DiscriminatorColumn(name="PRODUCT_TYPE")
public abstract class CatalogProduct{
     @Id
   @GeneratedValue(generator="seqGen")
@SequenceGenerator(name="seqGen",sequenceName="PLI_SEQ", allocationSize=1) 
   private long id;

   private String code;
     @ManyToOne(cascade=PERSIST)
   @JoinColumn(name="family_id", referencedColumnName = "id")
   private IndustrialFamily industrialFamily;
  ......
}

@Table(schema="PLI", name = "PLI_INDUSTRIAL_FAMILIES")
@Entity
public class IndustrialFamily {
     @Id
   @GeneratedValue(generator="seqGen")
@SequenceGenerator(name="seqGen",sequenceName="PLI_SEQ", allocationSize=1) 
   private long id;

    .....
}

Tables:

CREATE TABLE PLI_INDUSTRIAL_FAMILIES
(
ID NUMBER(10, 0) NOT NULL,
CODE VARCHAR2(20) NOT NULL,
NAME VARCHAR2(100) NOT NULL
)
;

CREATE TABLE PLI_CATALOG_PRODUCTS
(
ID NUMBER(10, 0) NOT NULL,
CODE VARCHAR2(500) NOT NULL,
FAMILY_ID NUMBER(10, 0) NOT NULL
)
;
javax.persistence.RollbackException: Exception [EclipseLink-45] (Eclipse Persistence Services - 1.0 (Build SNAPSHOT - 20080409)): org.eclipse.persistence.exceptions.DescriptorException Exception Description: Missing mapping for field [PLI.PLI_INDUSTRIAL_FAMILIES.id]. Descriptor: RelationalDescriptor(********.model.IndustrialFamily --> [DatabaseTable(PLI.PLI_INDUSTRIAL_FAMILIES)]) at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commitInternal(EntityTransactionImpl.java:109) at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:70) 
   at ********.test.ImportTest.testSaveImport(ImportTest.java:44)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
   at java.lang.reflect.Method.invoke(Method.java:597)
   at junit.framework.TestCase.runTest(TestCase.java:154)
   at junit.framework.TestCase.runBare(TestCase.java:127)
   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.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) Caused by: Exception [EclipseLink-45] (Eclipse Persistence Services - 1.0 (Build SNAPSHOT - 20080409)): org.eclipse.persistence.exceptions.DescriptorException Exception Description: Missing mapping for field [PLI.PLI_INDUSTRIAL_FAMILIES.id]. Descriptor: RelationalDescriptor(********.model.IndustrialFamily --> [DatabaseTable(PLI.PLI_INDUSTRIAL_FAMILIES)]) at org.eclipse.persistence.exceptions.DescriptorException.missingMappingForField(DescriptorException.java:938) at org.eclipse.persistence.internal.descriptors.ObjectBuilder.extractValueFromObjectForField(ObjectBuilder.java:1856) at org.eclipse.persistence.mappings.OneToOneMapping.writeFromObjectIntoRow(OneToOneMapping.java:1058) at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildRow(ObjectBuilder.java:830) at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildRow(ObjectBuilder.java:818) at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.insertObjectForWrite(DatabaseQueryMechanism.java:430) at org.eclipse.persistence.queries.InsertObjectQuery.executeCommit(InsertObjectQuery.java:78) at org.eclipse.persistence.queries.InsertObjectQuery.executeCommitWithChangeSet(InsertObjectQuery.java:88) at org.eclipse.persistence.internal.queries.DatabaseQueryMechanism.executeWriteWithChangeSet(DatabaseQueryMechanism.java:290) at org.eclipse.persistence.queries.WriteObjectQuery.executeDatabaseQuery(WriteObjectQuery.java:58) at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:653) at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:576) at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWorkObjectLevelModifyQuery(ObjectLevelModifyQuery.java:114) at org.eclipse.persistence.queries.ObjectLevelModifyQuery.executeInUnitOfWork(ObjectLevelModifyQuery.java:86) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2603) at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1061) at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1045) at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:991) at org.eclipse.persistence.internal.sessions.CommitManager.commitNewObjectsForClassWithChangeSet(CommitManager.java:254) at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsForClassWithChangeSet(CommitManager.java:229) at org.eclipse.persistence.internal.sessions.CommitManager.commitAllObjectsWithChangeSet(CommitManager.java:185) at org.eclipse.persistence.internal.sessions.AbstractSession.writeAllObjectsWithChangeSet(AbstractSession.java:2991) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabase(UnitOfWorkImpl.java:1240) at org.eclipse.persistence.internal.jpa.RepeatableWriteUnitOfWork.commitToDatabase(RepeatableWriteUnitOfWork.java:416) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1332) at org.eclipse.persistence.internal.jpa.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:145) at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:1000) at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commitInternal(EntityTransactionImpl.java:91) 
   ... 20 more



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