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From "Martin Dirichs (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1736) Mappings with foreign keys as identity fields sometimes not resolved correctly
Date Wed, 21 Jul 2010 10:57:49 GMT
Mappings with foreign keys as identity fields sometimes not resolved correctly
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                 Key: OPENJPA-1736
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1736
             Project: OpenJPA
          Issue Type: Bug
          Components: jdbc
    Affects Versions: 2.0.0
            Reporter: Martin Dirichs


This is a follow-up issue of OPENJPA-1141. The solution developed for that issue only handled
some aspects of an underlying greater problem with OpenJPAs mapping algorithm. This algorithm
may fail under certain circumstances involving foreign keys used as identity fields in other
entities. A patch with a test case illustrating this problem is attached to this issue. The
problem can probably show up with different exceptions. However, the stack trace for the supplied
test case is as follows:

testEntityAsIdentityField001(org.apache.openjpa.persistence.identity.entityasidentity2.TestEntityAsIdentityFields2)
 Time elapsed: 1.656 sec  <<< ERROR!
<openjpa-2.0.0-r422266:935683M fatal user error> org.apache.openjpa.persistence.ArgumentException:
Errors encountered while resolving metadata.  See nested exceptions for details.
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:642)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:385)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
	at org.apache.openjpa.meta.MetaDataRepository.resolveMeta(MetaDataRepository.java:688)
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:617)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaDataInternal(MetaDataRepository.java:385)
	at org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:358)
	at org.apache.openjpa.jdbc.meta.MappingRepository.getMapping(MappingRepository.java:355)
	at org.apache.openjpa.jdbc.meta.MappingTool.getMapping(MappingTool.java:679)
	at org.apache.openjpa.jdbc.meta.MappingTool.buildSchema(MappingTool.java:751)
	at org.apache.openjpa.jdbc.meta.MappingTool.run(MappingTool.java:649)
	at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerFactory.java:149)
	at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerFactory.java:159)
	at org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.newBrokerImpl(JDBCBrokerFactory.java:117)
	at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:199)
	at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:213)
	at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:151)
	at org.apache.openjpa.persistence.identity.entityasidentity2.TestEntityAsIdentityFields2.testEntityAsIdentityField001(TestEntityAsIdentityFields2.java:16)
	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 org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runTest(AbstractPersistenceTestCase.java:516)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:503)
	at org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.runBare(AbstractPersistenceTestCase.java:479)
	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 org.apache.openjpa.persistence.test.AbstractPersistenceTestCase.run(AbstractPersistenceTestCase.java:179)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	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 org.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:213)
	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
	at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127)
	at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
	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 org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:345)
	at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1009)
Caused by: <openjpa-2.0.0-r422266:935683M fatal user error> org.apache.openjpa.persistence.ArgumentException:
The id class specified by type "class org.apache.openjpa.persistence.identity.entityasidentity2.Attendance"
does not match the primary key fields of the class.  Make sure your identity class has the
same primary keys as your persistent type, including pk field types. Mismatched property:
"student"
	at org.apache.openjpa.meta.ClassMetaData.validateAppIdClassPKs(ClassMetaData.java:2205)
	at org.apache.openjpa.meta.ClassMetaData.validateAppIdClass(ClassMetaData.java:2079)
	at org.apache.openjpa.meta.ClassMetaData.validateIdentity(ClassMetaData.java:2015)
	at org.apache.openjpa.meta.ClassMetaData.validateMeta(ClassMetaData.java:1927)
	at org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1788)
	at org.apache.openjpa.meta.MetaDataRepository.processBuffer(MetaDataRepository.java:790)
	at org.apache.openjpa.meta.MetaDataRepository.resolveMeta(MetaDataRepository.java:693)
	at org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:617)
	... 48 more

A proposed solution to this issue is given below.


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