Re: [eclipselink-users] Virtual Metlhods | questions

[gaurav malhotra <gaurav.malhotra@xxxxxxxxxx>]

Hi Tom,
  If I do not refresh the meta-data, I get the exception pasted below, which can be traced back to the following call in class - ForeignReferenceMapping
        if (targetQuery.isObjectLevelReadQuery() && targetQuery.getDescriptor().hasFetchGroupManager()) {

NOTE > targetQuery.getDescriptor() comes NULL

dynamicRecords(com.oracle.healthinsurance.model.service.SearchableTest)  Time elapsed: 149.654 sec  <<< ERROR!
java.lang.NullPointerException
    at org.eclipse.persistence.mappings.ForeignReferenceMapping.valueFromRowInternal(ForeignReferenceMapping.java:2019)
    at org.eclipse.persistence.mappings.ForeignReferenceMapping.valueFromRow(ForeignReferenceMapping.java:1987)
    at org.eclipse.persistence.mappings.ForeignReferenceMapping.buildCloneFromRow(ForeignReferenceMapping.java:276)
    at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildAttributesIntoWorkingCopyClone(ObjectBuilder.java:1548)
    at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildWorkingCopyCloneFromRow(ObjectBuilder.java:1694)
    at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildObjectInUnitOfWork(ObjectBuilder.java:664)
    at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:601)
    at org.eclipse.persistence.internal.descriptors.ObjectBuilder.buildObject(ObjectBuilder.java:560)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.buildObject(ObjectLevelReadQuery.java:717)
    at org.eclipse.persistence.queries.ReadAllQuery.registerResultInUnitOfWork(ReadAllQuery.java:769)
    at org.eclipse.persistence.queries.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:433)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:1081)
    at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:844)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1040)
    at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:392)
    at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1128)
    at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2871)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1516)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1498)
    at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1449)
    at com.oracle.healthinsurance.support.domain.service.GenericSearchDAOImpl$16.doInJpa(GenericSearchDAOImpl.java:623)
    at com.oracle.healthinsurance.support.domain.service.GenericSearchDAOImpl$16.doInJpa(GenericSearchDAOImpl.java:1)
    at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:183)
    at org.springframework.orm.jpa.JpaTemplate.execute(JpaTemplate.java:146)
    at com.oracle.healthinsurance.support.domain.service.GenericSearchDAOImpl.search(GenericSearchDAOImpl.java:592)
    at com.oracle.healthinsurance.support.domain.search.SearchBuilder.doExecute(SearchBuilder.java:206)
    at com.oracle.healthinsurance.support.domain.search.SearchBuilder.execute(SearchBuilder.java:166)
    at com.oracle.healthinsurance.model.service.SearchableTest.dynamicRecords(SearchableTest.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

On 24-07-2012 10:22 PM, Tom Ware wrote:

It is not clear to me what the issue you are seeing with oneToManyMapping.getSelectionQuery().getDescriptor() is.  Can you please provide more detail?