Inheritance using Join Strategy may fail in cross join JPQL
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Key: OPENJPA-1401
URL: https://issues.apache.org/jira/browse/OPENJPA-1401
Project: OpenJPA
Issue Type: Bug
Components: jdbc
Affects Versions: 2.0.0
Reporter: Fay Wang
Cross joining two entities with join table inheritance strategy may fail in the
following test case: Contractor extends from Employee with Join table strategy.
A JPQL "SELECT e FROM Department d, Contractor e where d.OID = e.dept.OID and
d.description = 'Accounting' will fail with the exception below:
3922 inheritance2 TRACE [main] openjpa.Query - Executing query: SELECT e
FROM Department d, Contractor e where d.OID = e.dept.OID and d.description =
'IT'
3969 inheritance2 TRACE [main] openjpa.jdbc.SQL - <t 8970973, conn 12468716>
executing prepstmnt 24489446 SELECT t1.OID FROM Department t0 JOIN Contractor
t1 ON (1 = 1) WHERE (t0.OID = t1.Dept_No AND t0.description = ?)
[params=(String) IT]
3969 inheritance2 TRACE [main] openjpa.jdbc.SQL - <t 8970973, conn 12468716>
[0 ms] spent
3984 inheritance2 TRACE [main] openjpa.jdbc.JDBC - <t 8970973, conn 0> [0
ms] close
Exception in thread "main" <openjpa-0.0.0-rnull nonfatal general error>
org.apache.openjpa.persistence.PersistenceException: Employee: e
({e|Contractor=1, Department=0})
at
org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4677)
at
org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4630)
at
org.apache.openjpa.jdbc.sql.DB2Dictionary.newStoreException(DB2Dictionary.java:539)
at
org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:138)
at
org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:118)
at
org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:70)
at
org.apache.openjpa.jdbc.kernel.SelectResultObjectProvider.handleCheckedException(SelectResultObjectProvider.java:155)
at
org.apache.openjpa.kernel.QueryImpl$PackingResultObjectProvider.handleCheckedException(QueryImpl.java:2068)
at
org.apache.openjpa.lib.rop.WindowResultList.getInternal(WindowResultList.java:150)
at
org.apache.openjpa.lib.rop.AbstractNonSequentialResultList$Itr.hasNext(AbstractNonSequentialResultList.java:171)
at
org.apache.openjpa.lib.rop.ResultListIterator.hasNext(ResultListIterator.java:53)
at
org.apache.openjpa.kernel.DelegatingResultList$DelegatingListIterator.hasNext(DelegatingResultList.java:391)
at inheritance2.TestInheritance2.main(TestInheritance2.java:71)
Caused by: java.sql.SQLException: Employee: e ({e|Contractor=1, Department=0})
at
org.apache.openjpa.jdbc.sql.SelectImpl$SelectResult.findObject(SelectImpl.java:2402)
at
org.apache.openjpa.jdbc.sql.ResultSetResult.translate(ResultSetResult.java:497)
at
org.apache.openjpa.jdbc.sql.ResultSetResult.getObjectInternal(ResultSetResult.java:362)
at
org.apache.openjpa.jdbc.sql.AbstractResult.getObject(AbstractResult.java:696)
at
org.apache.openjpa.jdbc.meta.strats.PrimitiveFieldStrategy.getPrimaryKeyValue(PrimitiveFieldStrategy.java:300)
at
org.apache.openjpa.jdbc.meta.ClassMapping.getObjectId(ClassMapping.java:187)
at
org.apache.openjpa.jdbc.meta.ClassMapping.getObjectId(ClassMapping.java:146)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:941)
at
org.apache.openjpa.jdbc.sql.AbstractResult.load(AbstractResult.java:280)
at
org.apache.openjpa.jdbc.sql.SelectImpl$SelectResult.load(SelectImpl.java:2328)
at org.apache.openjpa.jdbc.kernel.exps.PCPath.load(PCPath.java:890)
at org.apache.openjpa.jdbc.kernel.exps.PCPath.load(PCPath.java:873)
at
org.apache.openjpa.jdbc.kernel.ProjectionResultObjectProvider.getResultObject(ProjectionResultObjectProvider.java:79)
at
org.apache.openjpa.kernel.QueryImpl$PackingResultObjectProvider.getResultObject(QueryImpl.java:2032)
at
org.apache.openjpa.lib.rop.WindowResultList.getInternal(WindowResultList.java:131)
... 4 more
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