support Java5 wildcard on OpenJPA
---------------------------------
Key: OPENJPA-145
URL: https://issues.apache.org/jira/browse/OPENJPA-145
Project: OpenJPA
Issue Type: Improvement
Components: jpa, kernel
Environment: OPENJPA 0.95
Reporter: yun teng
This enhancement request is to support Java 5 wildcard on OpenJPA. The java 5
widecard is defined at
http://www.angelikalanger.com/GenericsFAQ/FAQSections/TypeArguments.html#Wildcards
Currently, iusing java 5 widecard annotation in OpenJPA will cause
org.apache.openjpa.persistence.ArgumentException
for example
package parent;
public Class Account {
...
@OneToMany(mappedBy="account", cascade={CascadeType.ALL})
private Set<? extends AccountPerson> accountPersonCollection; ...}
public Class AccountPerson{...}
______________________________________________________________________
package child;
public Class Account extend parent.Account {
}
public Class AccountPerson{..}
In such case, the parent.Account has relationship to parent.AccountPerson,
while child.Account has relationship to child.AccountPerson. Now if I do not
use wildcard, my test passed. If I use wildcard, Java compile and Kodo
enhancement all worked fine. But at runtime, I got the following exception
766 TRACE [main] openjpa.MetaData - Resolving field
"[EMAIL PROTECTED]
ion".
766 WARN [main] openjpa.MetaData - OpenJPA cannot map field
"com.psi.vida.platform.entity.pojo.Account.accountPersonCollection"
efficiently. It is of an unsupported type. The field value will be serialized
to a BLOB by default. <4|true|0.9.5-incubating>
org.apache.openjpa.persistence.ArgumentException: Errors encountered while
resolving metadata. See nested exceptions for details.
at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.ja
va:500)
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepositor
y.java:284)
at
org.apache.openjpa.meta.MetaDataRepository.resolveMeta(MetaDataRepositor
y.java:519)
at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.ja
va:480)
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepositor
y.java:284)
at
org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2343)
at
org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2196)
at kodo.kernel.KodoBroker.persist(KodoBroker.java:155)
at
org.apache.openjpa.kernel.DelegatingBroker.persist(DelegatingBroker.java
:991)
at
org.apache.openjpa.persistence.EntityManagerImpl.persist(EntityManagerIm
pl.java:486)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManag
erInvocationHandler.invoke(SharedEntityManagerCreator.java:176)
at $Proxy5.persist(Unknown Source)
at
com.psi.vida.platform.util.VidaEntityManager.saveNew(VidaEntityManager.j
ava:160)
at
com.psi.vida.platform.util.VidaEntityManager.save(VidaEntityManager.java
:114)
at
com.psi.vida.platform.util.VidaEntityManagerTest.testSave(VidaEntityMana
gerTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at
org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase
.java:69)
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.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTe
stRunner.java:421)
at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUni
tTestRunner.java:912)
at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitT
estRunner.java:766)
Caused by: <4|true|0.9.5-incubating>
org.apache.openjpa.persistence.ArgumentException: Field
"com.psi.vida.platform.entity.pojo.Account.accountNoteCollection" cannot
declare that it is mapped by another field. Its mapping strategy
(org.apache.openjpa.jdbc.meta.strats.MaxEmbeddedBlobFieldStrategy) does not
support mapping by another field.
at
org.apache.openjpa.jdbc.meta.strats.AbstractFieldStrategy.assertNotMappe
dBy(AbstractFieldStrategy.java:56)
at
org.apache.openjpa.jdbc.meta.strats.MaxEmbeddedLobFieldStrategy.map(MaxE
mbeddedLobFieldStrategy.java:73)
at
org.apache.openjpa.jdbc.meta.strats.MaxEmbeddedBlobFieldStrategy.map(Max
EmbeddedBlobFieldStrategy.java:96)
at
org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java:
117)
at
org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(Ru
ntimeStrategyInstaller.java:77)
at
org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.ja
va:435)
at
org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:400)
at
org.apache.openjpa.jdbc.meta.ClassMapping.resolveNonRelationMappings(Cla
ssMapping.java:819)
at
org.apache.openjpa.jdbc.meta.MappingRepository.prepareMapping(MappingRep
ository.java:311)
at
org.apache.openjpa.meta.MetaDataRepository.loadMapping(MetaDataRepositor
y.java:586)
at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.ja
va:486)
... 34 more
NestedThrowables:
<4|true|0.9.5-incubating>
org.apache.openjpa.persistence.ArgumentException: Field
"com.psi.vida.platform.entity.pojo.Account.accountPersonCollection"
cannot declare that it is mapped by another field. Its mapping strategy
(org.apache.openjpa.jdbc.meta.strats.MaxEmbeddedBlobFieldStrategy) does not
support mapping by another field.
at
org.apache.openjpa.jdbc.meta.strats.AbstractFieldStrategy.assertNotMappe
dBy(AbstractFieldStrategy.java:56)
at
org.apache.openjpa.jdbc.meta.strats.MaxEmbeddedLobFieldStrategy.map(MaxE
mbeddedLobFieldStrategy.java:73)
at
org.apache.openjpa.jdbc.meta.strats.MaxEmbeddedBlobFieldStrategy.map(Max
EmbeddedBlobFieldStrategy.java:96)
at
org.apache.openjpa.jdbc.meta.FieldMapping.setStrategy(FieldMapping.java:
117)
at
org.apache.openjpa.jdbc.meta.RuntimeStrategyInstaller.installStrategy(Ru
ntimeStrategyInstaller.java:77)
at
org.apache.openjpa.jdbc.meta.FieldMapping.resolveMapping(FieldMapping.ja
va:435)
at
org.apache.openjpa.jdbc.meta.FieldMapping.resolve(FieldMapping.java:400)
at
org.apache.openjpa.jdbc.meta.ClassMapping.resolveNonRelationMappings(Cla
ssMapping.java:819)
at
org.apache.openjpa.jdbc.meta.ClassMapping.resolveMapping(ClassMapping.ja
va:779)
at
org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1568)
at
org.apache.openjpa.meta.MetaDataRepository.processBuffer(MetaDataReposit
ory.java:640)
at
org.apache.openjpa.meta.MetaDataRepository.resolveMapping(MetaDataReposi
tory.java:601)
at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.ja
va:492)
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepositor
y.java:284)
at
org.apache.openjpa.meta.MetaDataRepository.resolveMeta(MetaDataRepositor
y.java:519)
at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.ja
va:480)
at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepositor
y.java:284)
at
org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2343)
at
org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2196)
at kodo.kernel.KodoBroker.persist(KodoBroker.java:155)
at
org.apache.openjpa.kernel.DelegatingBroker.persist(DelegatingBroker.java
:991)
at
org.apache.openjpa.persistence.EntityManagerImpl.persist(EntityManagerIm
pl.java:486)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManag
erInvocationHandler.invoke(SharedEntityManagerCreator.java:176)
at $Proxy5.persist(Unknown Source)
at
com.psi.vida.platform.util.VidaEntityManager.saveNew(VidaEntityManager.j
ava:160)
at
com.psi.vida.platform.util.VidaEntityManager.save(VidaEntityManager.java
:114)
at
com.psi.vida.platform.util.VidaEntityManagerTest.testSave(VidaEntityMana
gerTest.java:50)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at
org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase
.java:69)
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.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTe
stRunner.java:421)
at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUni
tTestRunner.java:912)
at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitT
estRunner.java:766)
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