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NPE在HQL子查询

2010-10-15 86 views
0

我在下面的HQL查询时出现错误：NPE在HQL子查询

  em.createQuery(
      "SELECT new com.magenta.sovereign.entity.view.ThirdPartyReportView(" + 
        "e.id, " + 
        "e.vehicleRegistrationNumber, " + 
        "e.driverName, " + 
        "e.thirdPartyAssignee.firstName, " + 
        "e.thirdPartyAssignee.middleName, " + 
        "e.thirdPartyAssignee.lastName, " + 
        "e.totalDamageCost, " + 
        "e.date, " + 
        "tp.regNumber, " + 
        "tp.name, " + 
        "tp.thirdPartyFault, " + 
        "tp.settlementDetails, " + 
        "e.claimStatus, " + 
        "e.currentStatus," + 
        "(SELECT max(invoice1.date) FROM Invoice invoice1 WHERE invoice1.claim = e) " + 

      ") FROM Claim e left join e.thirdParties tp") 
      .setMaxResults(10);

如果我从查询中删除子选择，都是正确的

"(SELECT max(invoice1.date) FROM Invoice invoice1 WHERE invoice1.claim = e) "

但随着子查询我有以下错误：

javax.ejb.EJBException: java.lang.NullPointerException 
       at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63) 
       at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) 
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) 
       at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:304) 
       at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) 
       at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) 
       at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:809) 
       at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:608) 
       at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:406) 
       at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:173) 
      Caused by: java.lang.NullPointerException 
       at org.hibernate.hql.ast.tree.FromClause.findIntendedAliasedFromElementBasedOnCrazyJPARequirements(FromClause.java:120) 
       at org.hibernate.hql.ast.tree.FromClause.getFromElement(FromClause.java:107) 
       at org.hibernate.hql.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:81) 
       at org.hibernate.hql.ast.tree.FromClause.addFromElement(FromClause.java:70) 
       at org.hibernate.hql.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:255) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3056) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:2945) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:688) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:544) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExpr(HqlSqlBaseWalker.java:2014) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.aliasedSelectExpr(HqlSqlBaseWalker.java:2057) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.constructor(HqlSqlBaseWalker.java:2226) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExpr(HqlSqlBaseWalker.java:1952) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExprList(HqlSqlBaseWalker.java:1825) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectClause(HqlSqlBaseWalker.java:1394) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:553) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281) 
       at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229) 
       at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:228) 
       at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:160) 
       at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:111) 
       at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:77) 
       at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:56) 
       at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:72) 
       at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133) 
       at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112) 
       at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1623) 
       at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:92) 
       at org.jboss.ejb3.entity.TransactionScopedEntityManager.createQuery(TransactionScopedEntityManager.java:134) 
       at com.magenta.sovereign.ejb.ReportingServiceBean.getThirdPartyReportView(ReportingServiceBean.java:72) 
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
       at java.lang.reflect.Method.invoke(Method.java:616) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) 
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) 
       at com.magenta.sovereign.ejb.AbstractBean.aroundInvoke(AbstractBean.java:63) 
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
       at java.lang.reflect.Method.invoke(Method.java:616) 
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:146) 
       at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) 
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:95) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) 
       at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:110) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:304) 
       at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) 
       at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) 
       at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:809) 
       at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:608) 
       at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:406) 
       at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:173) 
       at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:163) 
       at org.jboss.remoting.Client.invoke(Client.java:1634) 
       at org.jboss.remoting.Client.invoke(Client.java:548) 
       at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:62) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:67) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:74) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107) 
       at $Proxy16.getThirdPartyReportView(Unknown Source) 
       at com.magenta.sovereign.client.reporting.ThirdPartyReport.getReportData(ThirdPartyReport.java:79) 
       at com.magenta.sovereign.client.reporting.AbstractExcelReport.doReport(AbstractExcelReport.java:200) 
       at com.magenta.sovereign.client.reporting.AbstractExcelReport.report(AbstractExcelReport.java:163) 
       at com.magenta.sovereign.client.view.reporting.ReportingController$11.run(ReportingController.java:168) 
       at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:74) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:67) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:74) 
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) 
       at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:107) 
       at $Proxy16.getThirdPartyReportView(Unknown Source) 
       at com.magenta.sovereign.client.reporting.ThirdPartyReport.getReportData(ThirdPartyReport.java:79) 
       at com.magenta.sovereign.client.reporting.AbstractExcelReport.doReport(AbstractExcelReport.java:200) 
       at com.magenta.sovereign.client.reporting.AbstractExcelReport.report(AbstractExcelReport.java:163) 
       at com.magenta.sovereign.client.view.reporting.ReportingController$11.run(ReportingController.java:168)

能否请你说明问题

来源

2010-10-15 user476959

+0

不知子的哪一部分 - 查询导致问题。但是你的情况太复杂而且特定于重现。也许让它更简单。 – 2010-10-15 19:55:42

+3

PS：'FromClause＃findIntendedAliasedFromElementBasedOnCrazyJPARequirements（）'让我发笑:) – 2010-10-16 00:18:21

回答

0

试图通过使联接（例：加入e.thirdPartyAssignee第三）和状突起像e.thirdPartyAssignee.firstName表达分开：third.firstName

来源

2010-10-19 08:02:26

1

此查询失败，同样的错误

选择一个FROM ArregloCuota a WHERE a.arreglo.deuda.estudio.id =：estudioID AND a.arreglo.anulado = FALSE AND a.arregloPagoRealizado IS NULL AND a.arreglo.deuda.id NOT IN（SELECT lu.deuda.id FROM LlamadoListadoPorUsuarioDetalle lu WHERE lu.listado.gestion.fechaHoraCierre IS NULL）ORDER BY a.arreglo.id DESC，a.numeroCuota ASC

但添加此项工作

SELECT a FROM ArregloCuota a INNER JOIN a.arreglo aa WHERE aa。 deuda.estudio.id =：estudioID AND aa。 anulado = FALSE AND a.arregloPagoRealizado IS NULL AND aa。 deuda.id NOT IN（SELECT lu.deuda.id FROM LlamadoListadoPorUsuarioDetalle鲁WHERE lu.listado.gestion.fechaHoraCierre IS NULL）ORDER BY a.arreglo.id DESC，ASC a.numeroCuota

来源

2013-06-05 13:56:09 Ezequiel

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