[jboss-jira] [JBoss JIRA] Created: (EJBTHREE-935) Cannot have several EAGER-fetches in one class

Oskar Carlstedt (JIRA) jira-events at lists.jboss.org
Mon Apr 2 10:20:58 EDT 2007


Cannot have several EAGER-fetches in one class
----------------------------------------------

                 Key: EJBTHREE-935
                 URL: http://jira.jboss.com/jira/browse/EJBTHREE-935
             Project: EJB 3.0
          Issue Type: Bug
         Environment: JBoss 4.0.5.GA, JBoss EJB3 RC9 Patch 1 on WIndows Vista Ent. Ed.
            Reporter: Oskar Carlstedt


It is impossible to use FetchType.EAGER on more than one set in an Entity bean. Here is an example:

public class SomeClass {

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	@Column(name = "id")
	private Integer id;

	...

	@OneToOne(cascade = CascadeType.ALL, mappedBy = "theLink", fetch = FetchType.EAGER)
	private OneToOneTest oneToOneTest;

	@OneToMany(cascade = CascadeType.ALL, mappedBy = "theLink", fetch = FetchType.LAZY)
	private List<OneToManyTest1> oneToManyTest1 = new ArrayList<OneToManyTest1>();

	@OneToMany(cascade = CascadeType.ALL, mappedBy = "theLink", fetch = FetchType.EAGER)
	private List<OneToManyTest2> oneToManyTest2 = new ArrayList<OneToManyTest2>();

	@OneToMany(cascade = CascadeType.ALL, mappedBy = "theLink", fetch = FetchType.EAGER)
	private List<OneToManyTest3> oneToManyTest3 = new ArrayList<OneToManyTest3>();

	...
}

Deploying this application will fail with the following message:
2007-04-02 16:02:11,694 WARN  [org.jboss.system.ServiceController] Problem starting service persistence.units:ear=service-test.ear,jar=service-test.jar,unitName=service-test
javax.persistence.PersistenceException: org.hibernate.HibernateException: cannot simultaneously fetch multiple bags
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:698)
	at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:127)
	at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:264)
	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:585)
	at org.jboss.ejb3.ServiceDelegateWrapper.startService(ServiceDelegateWrapper.java:102)
	at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
	at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
	at sun.reflect.GeneratedMethodAccessor97.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
	at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
	at $Proxy0.start(Unknown Source)
	at org.jboss.system.ServiceController.start(ServiceController.java:417)
	at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
	at $Proxy123.start(Unknown Source)
	at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:96)
	at org.jboss.ejb3.Ejb3Deployment.startPersistenceUnits(Ejb3Deployment.java:467)
	at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:317)
	at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)
	at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
	at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
	at sun.reflect.GeneratedMethodAccessor97.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
	at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
	at $Proxy0.start(Unknown Source)
	at org.jboss.system.ServiceController.start(ServiceController.java:417)
	at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
	at $Proxy29.start(Unknown Source)
	at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:449)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
	at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
	at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
	at org.jboss.ws.integration.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:93)
	at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
	at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
	at $Proxy30.start(Unknown Source)
	at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
	at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
	at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
	at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
	at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
	at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
	at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
	at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
	at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
	at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
	at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
	at $Proxy8.deploy(Unknown Source)
	at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
	at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:610)
	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)
	at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)
Caused by: org.hibernate.HibernateException: cannot simultaneously fetch multiple bags
	at org.hibernate.loader.BasicLoader.postInstantiate(BasicLoader.java:66)
	at org.hibernate.loader.entity.EntityLoader.<init>(EntityLoader.java:75)
	at org.hibernate.loader.entity.EntityLoader.<init>(EntityLoader.java:43)
	at org.hibernate.loader.entity.EntityLoader.<init>(EntityLoader.java:33)
	at org.hibernate.loader.entity.BatchingEntityLoader.createBatchingEntityLoader(BatchingEntityLoader.java:103)
	at org.hibernate.persister.entity.AbstractEntityPersister.createEntityLoader(AbstractEntityPersister.java:1682)
	at org.hibernate.persister.entity.AbstractEntityPersister.createEntityLoader(AbstractEntityPersister.java:1686)
	at org.hibernate.persister.entity.AbstractEntityPersister.createLoaders(AbstractEntityPersister.java:2917)
	at org.hibernate.persister.entity.AbstractEntityPersister.postInstantiate(AbstractEntityPersister.java:2910)
	at org.hibernate.persister.entity.SingleTableEntityPersister.postInstantiate(SingleTableEntityPersister.java:690)
	at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:290)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1218)
	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:691)
	... 99 more


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