[jBPM] New message: "Re: Problem Signaling a Waiting Execution"
by Santanu Saraswati
User development,
A new message was posted in the thread "Problem Signaling a Waiting Execution":
http://community.jboss.org/message/520721#520721
Author : Santanu Saraswati
Profile : http://community.jboss.org/people/saraswati.santanu
Message:
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These are the two points I understood about your requirement:
1. You have to perform some activity at every node of the flow.
2. You call executionService.signalExecutionById(executionId); from somewhere outside to invoke the flow for the first time. This call takes you to the end even listener of activity1. There you try to invoke executionService.signalExecutionById(executionId); to ensure that you move to activity2.
Lets take the second point first. Hope this understanding of mine is correct. And if it is correct then you do not need executionService.signalExecutionById(executionId); call in your event listener. If you have reached end event listener you will anyway move to the next activity (activity2). Just execute your business logic there. Flow will be taken care of.
About the first point - my question is do you need to wait for some external operation (which is not a part of the flow) to happen and then trigger the flow at each activity? If you need to do this then state node is the correct choice. If you do not need to wait at the node and just need to execute some business logic at the node you should consider using java node.
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To reply to this message visit the message page: http://community.jboss.org/message/520721#520721
16 years, 3 months
[JBoss Portal Development] New message: "Error on using nested select"
by charles pang
User development,
A new message was posted in the thread "Error on using nested select":
http://community.jboss.org/message/520707#520707
Author : charles pang
Profile : http://community.jboss.org/people/vrwar
Message:
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I use the ejb-ql *SELECT OBJECT(O) FROM t As O WHERE O.id = (SELECT MAX(C.id) FROM t AS C )* in ejb-jar. It runs well in Weblogic, while throws exception when migrated to Jboss-5.1.0.GA. Can't Jboss-5.1.0.GA support nested select? Following is the exception.
org.jboss.deployment.DeploymentException: Error compiling EJB-QL statement for EJB 'T': SELECT OBJECT(O) FROM WsSilasGroupPid As O WHERE O.id = (SELECT 1 FROM WsSilasGroupPid AS C )
at org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.<init>(JDBCEJBQLQuery.java:67)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCCommandFactory.createEJBQLQuery(JDBCCommandFactory.java:75)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCQueryManager.start(JDBCQueryManager.java:286)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.startStoreManager(JDBCStoreManager.java:505)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.start(JDBCStoreManager.java:396)
at org.jboss.ejb.plugins.CMPPersistenceManager.start(CMPPersistenceManager.java:172)
at org.jboss.ejb.EjbModule.startService(EjbModule.java:495)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:376)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:322)
at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
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:668)
at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:189)
at $Proxy38.start(Unknown Source)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62)
at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71)
at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51)
at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:286)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at org.jboss.system.ServiceController.doChange(ServiceController.java:688)
at org.jboss.system.ServiceController.start(ServiceController.java:460)
at org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:163)
at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:99)
at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46)
at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:62)
at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1178)
at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098)
at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1631)
at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1082)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553)
at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781)
at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:702)
at org.jboss.system.server.profileservice.repository.MainDeployerAdapter.process(MainDeployerAdapter.java:117)
at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:362)
at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:255)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.jboss.ejb.plugins.cmp.ejbql.ParseException: Encountered "SELECT" at line 1, column 65.
Was expecting one of:
"ABS" ...
"LENGTH" ...
"LOCATE" ...
"SQRT" ...
"MOD" ...
"(" ...
"+" ...
"-" ...
<INTEGER_LITERAL> ...
<FLOATING_POINT_LITERAL> ...
<NUMERIC_VALUED_PARAMETER> ...
<NUMERIC_VALUED_PATH> ...
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.generateParseException(EJBQLParser.java:4366)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.jj_consume_token(EJBQLParser.java:4243)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticPrimary(EJBQLParser.java:1831)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticFactor(EJBQLParser.java:1760)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticTerm(EJBQLParser.java:1684)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticExpression(EJBQLParser.java:1630)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticPrimary(EJBQLParser.java:1797)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticFactor(EJBQLParser.java:1760)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticTerm(EJBQLParser.java:1684)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ArithmeticExpression(EJBQLParser.java:1630)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ScalarExpression(EJBQLParser.java:1622)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.SingleValueDesignator(EJBQLParser.java:1618)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ComparisonExpression(EJBQLParser.java:1553)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.SimpleCondExpression(EJBQLParser.java:924)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ConditionalPrimary(EJBQLParser.java:881)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ConditionalTest(EJBQLParser.java:849)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.ConditionalFactor(EJBQLParser.java:826)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.WhereConditionalTerm(EJBQLParser.java:673)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.WhereExpression(EJBQLParser.java:628)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.WhereClause(EJBQLParser.java:592)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.EJBQL(EJBQLParser.java:176)
at org.jboss.ejb.plugins.cmp.ejbql.EJBQLParser.parse(EJBQLParser.java:65)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLCompiler.compileEJBQL(JDBCEJBQLCompiler.java:168)
at org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.<init>(JDBCEJBQLQuery.java:58)
... 64 more
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16 years, 3 months