[JBoss Seam] - jBPM can't evaluate method
by smithbstl
I am taking my first stab at using jPdl page flows and can't get jBPM to recognize a component method.
I have a SFSB that contains two DataModels. The first DataModel fills a clickable data table (AddressLookup.xhtml) which has a link to another page (AddressRequestListing.xhtml) with a second table filled by the second DataModel in the SFSB.
I keep getting this error
org.jbpm.JbpmException: couldn't evaluate expression '#{requestEntry.findRequests}'
Here is my page flow - pageflow.jpdl.xml
<pageflow-definition name="serviceRequestCreation">
| <start-page name="addressLookup" view-id="/AddressLookup.xhtml">
| <redirect/>
| <transition name="viewRequests" to="addressRequestListing">
| <action expression="#{requestEntry.findRequests}"/>
| </transition>
| </start-page>
| <page name="addressRequestListing" view-id="/AddressRequestListing.xhtml"/>
| </pageflow-definition>
Here is pages.xml
<pages>
| <page view-id="/AddressLookup.xhtml">
| <begin-conversation join="true" pageflow="serviceRequestCreation"/>
| </page>
| </pages>
Here is my SFSB
@Stateful
| @Name("requestEntry")
| public class RequestEntryAction implements com.stlouiscity.csb.ejb.action.RequestEntry {
|
| @PersistenceContext(unitName="CSB_Oracle", type=EXTENDED)
| private EntityManager em;
|
| @In(create=true)
| private Address address;
|
| @In(create=true, required=false)
| private AddressLookup addressLookup;
|
| @DataModel("addresses")
| private List<ParcelAddress> addresses;
|
| @DataModelSelection(value="addresses")
| @Out(required=false)
| private ParcelAddress selectedAddress;
|
| @DataModel("requests")
| private List<ServiceRequest> requests;
|
| @DataModelSelection(value="requests")
| private ServiceRequest selectedRequest;
|
| public RequestEntryAction() {
| }
|
| public void findAddresses() {
|
| if (address.getStreetName() != null) {
| System.out.println("Address Is NOT NULL");
| //Find ParcelAddress
| Query q = em.createQuery("Select a From ParcelAddress a Where" +
| " (a.structureAddress.nlc.streetDirection = :streetDirection OR :streetDirection IS NULL) AND" +
| " (lower(a.structureAddress.nlc.streetName) LIKE :street) AND" +
| " (((a.structureAddress.structureAddressPK.houseNumber = :houseNumber) OR" +
| " (:houseNumber BETWEEN a.structureAddress.houseLow AND a.structureAddress.houseHigh)) OR (:houseNumber IS NULL))");
| q.setParameter("houseNumber",address.getHouseNumber());
| q.setParameter("streetDirection",address.getStreetDirection());
| q.setParameter("street",address.getStreetName().toLowerCase() + "%");
|
| addresses = q.getResultList();
| } else {
| System.out.println("Address IS NULL");
| }
| }
|
| public void findRequests() {
| System.out.println("**********Entered findRequests*************");
| System.out.println("**********Selected Address: " + selectedAddress.toString());
| Query q = em.createQuery("Select s From ServiceRequest Where" +
| " s.parcelAddress = :parcelAddress");
| q.setParameter("parcelAddress",selectedAddress);
| requests = q.getResultList();
| }
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19 years
[EJB/JBoss] - Another NullPointerException in JBoss 4.0.5GA
by tonylmai
Does anyone know the cause of this problem?
Thanks
anonymous wrote :
| 14:12:12,375 WARN [ServiceController] Problem starting service persistence.units:jar=authen.jar,unitName=authen
| java.lang.NullPointerException
| at org.hibernate.util.StringHelper.qualify(StringHelper.java:264)
| at org.hibernate.cfg.OneToOneSecondPass.doSecondPass(OneToOneSecondPass.java:196)
| at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1054)
| at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:296)
| at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1039)
| at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1211)
| at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154)
| at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:847)
| at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:385)
| at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:126)
| at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:264)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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.GeneratedMethodAccessor2.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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 $Proxy63.start(Unknown Source)
| at org.jboss.ejb3.JmxKernelAbstraction.install(JmxKernelAbstraction.java:96)
| at org.jboss.ejb3.Ejb3Deployment.startPersistenceUnits(Ejb3Deployment.java:467)
| at org.jboss.ejb3.Ejb3Deployment.start(Ejb3Deployment.java:317)
| at org.jboss.ejb3.Ejb3Module.startService(Ejb3Module.java:91)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.system.ServiceController$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(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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 $Proxy28.start(Unknown Source)
| at org.jboss.ejb3.EJB3Deployer.start(EJB3Deployer.java:449)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
| at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
| at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
| at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
| at org.jboss.ws.integration.jboss.DeployerInterceptor.start(DeployerInterceptor.java:92)
| at org.jboss.deployment.SubDeployerInterceptorSupport$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 $Proxy29.start(Unknown Source)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
| at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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 $Proxy8.deploy(Unknown Source)
| at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
| at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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 $Proxy4.start(Unknown Source)
| at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
| at java.lang.reflect.Method.invoke(Unknown Source)
| 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 $Proxy5.deploy(Unknown Source)
| at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
| at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
| at org.jboss.Main.boot(Main.java:200)
| at org.jboss.Main$1.run(Main.java:490)
| at java.lang.Thread.run(Unknown Source)
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19 years
[JBoss Seam] - Re: Changes not persisted using EntityHome
by waynebagguley
I've got a one-to-many relationship in one of my beans and have never had any trouble. This is from my entity bean:
List<Request> requests = new ArrayList<Request>();
|
| @OneToMany
| public List<Request> getRequests()
| {
| return requests;
| }
| public void setRequests(List<Request> requests)
| {
| this.requests = requests;
| }
If you are having to perform a merge() then that's because you are not using a seam managed persistence context.
I am using an injected persistence context in my session bean:
@In
| EntityManager entityManager
This is then configured in components.xml and persistence.xml.
I'm still experimenting with the 1-many relationship in terms of how changes are persisted when items are added and removed, I can get it to work quite easily but I'm sure there's a better way than the one I'm using.
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19 years