Hey devs --
I'm trying to prototype a auditing feature that would read one or two of
the less-common (terribly uncommon?) portal events from the statsDb.
The stats persistence uses hibernate, so I figured I could follow the
established examples and best practices for using hibernate in the
portal. But I'm encountering an unexpected form of obstacle -- I'm
sensing that perhaps that the hibernate setup for stats precludes
reading the entities back out of the database, which is a pity.
I'm getting "TransientObjectException" (stack trace posted at end). I'm
not a hibernate guru, but my best guess is that the PortalEvent's
relationship with the EventType class (pseudo-enum) is severed from the
database-backed object, and hibernate refuses to give me back
PortalEvents for that reason.
Can anyone give me some tips for working with persisted PortalEvents?
thanks,
drew
*****
org.hibernate.TransientObjectException: object references an unsaved transient
instance - save the transient instance before flushing:
org.jasig.portal.events.EventType
org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:219)
org.hibernate.type.EntityType.getIdentifier(EntityType.java:397)
org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:87)
org.hibernate.param.NamedParameterSpecification.bind(NamedParameterSpecification.java:38)
org.hibernate.loader.hql.QueryLoader.bindParameterValues(QueryLoader.java:491)
org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1563)
org.hibernate.loader.Loader.doQuery(Loader.java:673)
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
org.hibernate.loader.Loader.doList(Loader.java:2213)
org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2136)
org.hibernate.loader.Loader.list(Loader.java:2096)
org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:65)
org.jasig.portal.events.handlers.db.JpaPortalEventStore.getPortalEvents(JpaPortalEventStore.java:159)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:54)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:77)
org.jasig.portal.portlet.dao.jpa.ThreadContextClassLoaderAspect.doThreadContextClassLoaderUpdate(ThreadContextClassLoaderAspect.java:51)
sun.reflect.GeneratedMethodAccessor111.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:627)
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:616)
org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:64)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
$Proxy59.getPortalEvents(Unknown Source)
org.jasig.portal.rest.StatsLayoutModificationsController.getEventCounts(StatsLayoutModificationsController.java:116)
org.jasig.portal.rest.StatsLayoutModificationsController.handleRequestInternal(StatsLayoutModificationsController.java:97)
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
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