That is my concern I should only have one copy of a storeType for many Store entries. So if I add a record on the "one" side (Store) of a one-to-many" relationship and have a relation set to an existing "Many" side (StoreType) I don't want a new "Many" side record created as this would be a duplicate.
It seems unless I specify a cascade.Merge/Persist on the relationship field I cannot persist a new Store with a relationship to a StoreType record even though the StoreType record exists and does not need merging/persisting. What I am looking to do is only persist data on the "one" side of the relationship and never the "Many". Make sense or just crazy coding? Phill -----Original Message----- From: Marc Prud'hommeaux [mailto:[EMAIL PROTECTED] On Behalf Of Marc Prud'hommeaux Sent: April 24, 2007 2:23 PM To: open-jpa-dev@incubator.apache.org Subject: Re: Cascade question (ver 0.96) Phill- > The behaviour I am looking for is simply persist the relation (i.e. > the link field) If you specify cascade=MERGE on the StoreType relation field, and you merge a Store instance for which the StoreType relation doesn't already exists, does it not persist the field as if it were new? That's the behavior I would expect... On Apr 23, 2007, at 9:55 PM, Phill Moran wrote: > Here is a scenario that shows odd behaviour, I want to see if it is > expected or not. The docs are not clear on it > > If I have a many to one relationship for objects Store to Store Type > and I create a new Store and assign it to an existing Store type does > this relationship have to have cascasdeType.persist set when I issue a > merge on the new Store? I had recently removed this as I thought I did > not want to create a duplicate Store Type whenever I added a new > Store. It seems OpenJPA throws the attached exception when I only have > CascadeType.Refresh set. > Alternatively, this could just be a poorly worded exception/ > documentation meaning OpenJPA would check for the existence of this > Store Type and not actually persist it if it exists. The behaviour I > am looking for is simply persist the relation (i.e. the link field) > > Thanks, > Phill > <4|false|0.9.6-incubating> > org.apache.openjpa.persistence.ArgumentException: > Encountered new object > "ca.BidSpec.emall.categories.Category-105603b-508b-9c6-00f4-4031ba6429 > e3:0" in > persistent field "ca.BidSpec.emall.stores.Store.type" of managed > object "[EMAIL PROTECTED]" during attach. However, > this field does not allow cascade attach. You cannot attach a > reference to a new object without cascading. > FailedObject: > ca.BidSpec.emall.categories.Category-105603b-508b-9c6-00f4-4031ba6429e > 3:0 > at > org.apache.openjpa.kernel.AttachStrategy.getReference > (AttachStrategy.java:272) > at > org.apache.openjpa.kernel.AttachStrategy.attachField > (AttachStrategy.java:189) > at > org.apache.openjpa.kernel.VersionAttachStrategy.attach > (VersionAttachStrategy.jav > a:130) > at > org.apache.openjpa.kernel.AttachManager.attach(AttachManager.java:236) > at org.apache.openjpa.kernel.AttachManager.attach > (AttachManager.java:97) > at org.apache.openjpa.kernel.BrokerImpl.attach(BrokerImpl.java:3124) > at > org.apache.openjpa.kernel.DelegatingBroker.attach > (DelegatingBroker.java:1120) > at > org.apache.openjpa.persistence.EntityManagerImpl.merge > (EntityManagerImpl.java:59 > 1) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke > (NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke > (DelegatingMethodAccessorImpl.jav > a:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.springframework.orm.jpa.ExtendedEntityManagerCreator > $ExtendedEntityManagerIn > vocationHandler.invoke(ExtendedEntityManagerCreator.java:283) > at $Proxy37.merge(Unknown Source) > at > ca.BidSpec.emall.persistence.JPAPersistenceFactory.merge > (JPAPersistenceFactory.j > ava:95) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke > (NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke > (DelegatingMethodAccessorImpl.jav > a:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflectio > n(AopUtils > .java:304) > at > org.springframework.aop.framework.JdkDynamicAopProxy.invoke > (JdkDynamicAopProxy.j > ava:197) > at $Proxy35.merge(Unknown Source) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke > (NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke > (DelegatingMethodAccessorImpl.jav > a:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflectio > n(AopUtils > .java:304) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoi > npoint(Ref > lectiveMethodInvocation.java:172) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed > (ReflectiveM > ethodInvocation.java:139) > at > org.springframework.transaction.interceptor.TransactionInterceptor.inv > oke(Transa > ctionInterceptor.java:107) > at > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed > (ReflectiveM > ethodInvocation.java:161) > at > org.springframework.aop.framework.JdkDynamicAopProxy.invoke > (JdkDynamicAopProxy.j > ava:203) > at $Proxy35.merge(Unknown Source) > at > ca.BidSpec.testing.emall.StoreFactoryTest.testSave > (StoreFactoryTest.java:69) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke > (NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke > (DelegatingMethodAccessorImpl.jav > a:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at junit.framework.TestCase.runTest(TestCase.java:168) > at junit.framework.TestCase.runBare(TestCase.java:134) > at > org.springframework.test.ConditionalTestCase.runBare > (ConditionalTestCase.java:69 > ) > at > org.springframework.test.annotation.AbstractAnnotationAwareTransaction > alTests.ac > cess$001(AbstractAnnotationAwareTransactionalTests.java:47) > at > org.springframework.test.annotation.AbstractAnnotationAwareTransaction > alTests$1. > run(AbstractAnnotationAwareTransactionalTests.java:115) > at > org.springframework.test.annotation.AbstractAnnotationAwareTransaction > alTests.ru > nTest(AbstractAnnotationAwareTransactionalTests.java:180) > at > org.springframework.test.annotation.AbstractAnnotationAwareTransaction > alTests.ru > nTestTimed(AbstractAnnotationAwareTransactionalTests.java:153) > at > org.springframework.test.annotation.AbstractAnnotationAwareTransaction > alTests.ru > nBare(AbstractAnnotationAwareTransactionalTests.java:111) > at > org.springframework.test.jpa.AbstractJpaTests.runBare > (AbstractJpaTests.java:159) > at > org.springframework.test.jpa.AbstractJpaTests.runBare > (AbstractJpaTests.java:239) > at junit.framework.TestResult$1.protect(TestResult.java:110) > at junit.framework.TestResult.runProtected(TestResult.java:128) > at junit.framework.TestResult.run(TestResult.java:113) > at junit.framework.TestCase.run(TestCase.java:124) > at junit.framework.TestSuite.runTest(TestSuite.java:232) > at junit.framework.TestSuite.run(TestSuite.java:227) > at > org.junit.internal.runners.OldTestClassRunner.run > (OldTestClassRunner.java:35) > at > org.junit.internal.runners.CompositeRunner.run(CompositeRunner.java: > 29) > at > org.junit.internal.runners.TestClassRunner$1.runUnprotected > (TestClassRunner.java > :42) > at > org.junit.internal.runners.BeforeAndAfterRunner.runProtected > (BeforeAndAfterRunne > r.java:34) > at > org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java: > 52) > at > org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run > (JUnit4TestReferen > ce.java:38) > 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.jav > a:196) >
