[jboss-user] [JBoss Seam] - Re: how to configure a session bean managing entity beans wi
dbatcn
do-not-reply at jboss.com
Thu Jul 20 18:23:16 EDT 2006
I tried to follow all the instructions in the reference, but using the bean (see GroupManagerBean.create) causes a rollback/synchronization problem (which see at bottom of post)
I wouldn't be surprised if there were issues in how the @Role stuff was done, but I couldn't find a single example of its usage anywhere in real code. I also hope I configured the managed persistence context right.
Files and error:
User.java
| ...
| @Entity
| @Name("user")
| // default scope is CONVERSATION
| @Role(name="currentUser", scope=SESSION)
| @Table(name="USERS")
| public class User implements Serializable {
| ...
| private Set<Group> groups = new HashSet<Group>();
|
| @ManyToMany
| @JoinTable(name="USER_GROUP",
| joinColumns={@JoinColumn(name="USER_ID")},
| inverseJoinColumns={@JoinColumn(name="GROUP_ID")})
| public Set<Group> getGroups() {
| return groups;
| }
| public void setGroups( Set<Group> groups ) {
| this.groups = groups;
| }
| }
|
Group.java
| @Entity
| @Name("group")
| // default scope is CONVERSATION
| @Table(name="GROUPS")
| public class Group implements Serializable {
| ...
| private Set<User> users = new HashSet<User>();
|
| @ManyToMany(mappedBy="groups")
| public Set<User> getUsers() {
| return users;
| }
| public void setUsers( Set<User> users ) {
| this.users = users;
| }
| }
|
GroupManagerBean.java
| @Stateful
| @Name("groupManager")
| // default scope is CONVERSATION
| @LoggedIn
| public class GroupManagerBean implements GroupManager, Serializable {
| ...
| @DataModel
| private List<Group> groupList;
|
| @DataModelSelection
| @Out(required=false)
| private Group group;
|
| @In
| private User user;
|
| @PersistenceContext(type=EXTENDED)
| private EntityManager orgmobDatabase;
|
| @Factory("groupList")
| public void find() {
| groupList = new ArrayList<Group>( user.getGroups() );
| }
|
| public void create() {
| group = new Group();
| group.setGroupname( newGroupname() );
| user.getGroups().add( group );
| }
| }
|
LoginAction.java
| @Stateless
| @Name("login")
| public class LoginAction implements Login {
|
| @In @Out
| private User currentUser;
|
| // COMMENTING OUT user JUST MOVES THE ROLLBACK/SYNCHRONIZATION
| // PROBLEM TO OCCUR IN THE GROUP MANAGER
| @Out
| private User user;
|
| @PersistenceContext
| private EntityManager orgmobDatabase;
|
| public String login() {
| List<User> results = orgmobDatabase.createQuery(
| "from User where username=:username and password=:password")
| .setParameter("username", currentUser.getUsername())
| .setParameter("password", currentUser.getPassword())
| .getResultList();
| String action;
| if ( results.size()==0 ) {
| FacesMessages.instance().add("#{messages.errorInvalidLogin}");
| action = "login";
| }
| else {
| // IS THIS HOW YOU USE COMPONENT WITH MULTIPLE ROLES?
| // THERE ARE NO EXAMPLES OF @Role USAGE.
| user = currentUser = results.get(0);
|
| Contexts.getSessionContext().set(LOGGED_IN, true);
| FacesMessages.instance().add("#{messages.infoWelcome}");
| action = "groups";
| }
| return action;
|
| }
| }
|
faces-config.xml
| <?xml version="1.0" encoding="UTF-8"?>
| <!DOCTYPE faces-config
| PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN"
| "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">
| <faces-config>
|
| <!-- Navigation rules for the app -->
| <navigation-rule>
| ...
| </navigation-rule>
|
| <!-- Facelets support -->
| <application>
| <view-handler>com.sun.facelets.FaceletViewHandler</view-handler>
|
| <!-- ??? -->
| <navigation-handler>org.jboss.seam.jsf.SeamNavigationHandler</navigation-handler>
| <state-manager>org.jboss.seam.jsf.SeamStateManager</state-manager>
| <variable-resolver>org.jboss.seam.jsf.SeamVariableResolver</variable-resolver>
|
| </application>
|
|
| <!-- Phase listener needed for all Seam applications -->
|
| <lifecycle>
| <!-- phase-listener>org.jboss.seam.jsf.SeamPhaseListener</phase-listener -->
| <phase-listener>
| org.jboss.seam.jsf.SeamExtendedManagedPersistencePhaseListener
| </phase-listener>
| </lifecycle>
|
| </faces-config>
|
components.xml
| <components>
|
| <component name="org.jboss.seam.core.init">
| <property name="myFacesLifecycleBug">true</property>
| <property name="jndiPattern">member/#{ejbName}/local</property>
| </component>
|
| <component class="org.jboss.seam.core.Ejb"
| installed="false"/>
|
|
| <!-- Configuring a managed persistence context -->
| <component name="orgmobDatabase"
| class="org.jboss.seam.core.ManagedPersistenceContext">
| <property name="persistenceUnitJndiName">java:/EntityManagerFactories/orgmobData</property>
| </component>
|
| </components>
|
persistence.xml
| <persistence>
| <persistence-unit name="orgmobDB">
| <provider>org.hibernate.ejb.HibernatePersistence</provider>
| <jta-data-source>java:/DefaultDS</jta-data-source>
| <properties>
| <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
| <property name="jboss.entity.manager.factory.jndi.name"
| value="java:/EntityManagerFactories/orgmobData" />
| </properties>
| </persistence-unit>
| </persistence>
|
rollback/synchronization exception:
anonymous wrote :
| 2006-07-20 14:54:06,226 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/member].[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
| javax.faces.el.EvaluationException: Exception while invoking expression #{groupManager.create}
| at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:153)
| at org.jboss.seam.core.Pages.callAction(Pages.java:212)
| at org.jboss.seam.jsf.AbstractSeamPhaseListener.callPageActions(AbstractSeamPhaseListener.java:127)
| at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:98)
| at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:50)
| at org.jboss.seam.jsf.SeamExtendedManagedPersistencePhaseListener.beforePhase(SeamExtendedManagedPersistencePhaseListener.java:38)
| at org.apache.myfaces.lifecycle.LifecycleImpl.informPhaseListenersBefore(LifecycleImpl.java:520)
| at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:342)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
| at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
| at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
| at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: java.lang.RuntimeException: org.hibernate.TransactionException: Could not register synchronization
| at org.jboss.ejb3.stateful.StatefulBeanContext.remove(StatefulBeanContext.java:273)
| at org.jboss.ejb3.AbstractPool.remove(AbstractPool.java:171)
| at org.jboss.ejb3.cache.simple.SimpleStatefulCache.remove(SimpleStatefulCache.java:299)
| at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:89)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
| 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.stateful.StatefulContainer.localInvoke(StatefulContainer.java:188)
| at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98)
| at $Proxy850.create(Unknown Source)
| 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.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:129)
| ... 29 more
| Caused by: org.hibernate.TransactionException: Could not register synchronization
| at org.hibernate.transaction.CMTTransaction.registerSynchronization(CMTTransaction.java:159)
| at org.hibernate.ejb.EntityManagerImpl.close(EntityManagerImpl.java:59)
| at org.jboss.ejb3.stateful.StatefulBeanContext.closeExtendedPCs(StatefulBeanContext.java:284)
| at org.jboss.ejb3.stateful.StatefulBeanContext.remove(StatefulBeanContext.java:268)
| ... 47 more
| Caused by: javax.transaction.RollbackException: Already marked for rollback TransactionImpl:XidImpl[FormatId=257, GlobalId=diamond/9567, BranchQual=, localId=9567]
| at org.jboss.tm.TransactionImpl.registerSynchronization(TransactionImpl.java:635)
| at org.hibernate.transaction.CMTTransaction.registerSynchronization(CMTTransaction.java:156)
| ... 50 more
|
Putting the user variable into LoginAction moves the rollback/synchronization problem there. Commenting it out delays the problem to usage of the group manager bean.
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