2 Replies Latest reply on May 25, 2008 6:41 PM by Srinivas Chamarthi

    Multiple Datasources

    Srinivas Chamarthi Newbie

      Hi Guys,


      pardon me, if this was posted already elsewhere


      I have configured two datasources in my application as below.


      Listing of component.xml



      <persistence:managed-persistence-context name="umcEntityManager" auto-create="true"
      persistence-unit-jndi-name="java:/UMCEntityManagerFactory"/>
                            
         <persistence:managed-persistence-context name="glueEntityManager" auto-create="true"
      persistence-unit-jndi-name="java:/GLUEEntityManagerFactory"/>
      



      Listing of persistence.xml


      <persistence-unit name="UMC">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
            <jta-data-source>java:/UMCDatasource</jta-data-source>
            <properties>
               <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
               <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
               <property name="hibernate.show_sql" value="true"/>
               <property name="hibernate.format_sql" value="true"/>
               <property name="jboss.entity.manager.factory.jndi.name" value="java:/UMCEntityManagerFactory"/>
            </properties>
      </persistence-unit>
      
         <persistence-unit name="GLUE">
            <provider>org.hibernate.ejb.HibernatePersistence</provider>
            <jta-data-source>java:/GLUEDatasource</jta-data-source>
            <properties>
               <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
               <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
               <property name="hibernate.show_sql" value="true"/>
               <property name="hibernate.format_sql" value="true"/>
               <property name="jboss.entity.manager.factory.jndi.name" value="java:/GLUEEntityManagerFactory"/>
            </properties>
         </persistence-unit>




      And I am trying to use the persistence context in the following way.



          @PersistenceContext(unitName="UMC")
           private EntityManager umcEntityManager;    
      
      



      But I am getting the following exception when I try to execute my application.
      
      
      SEVERE: Error Rendering View[/main.xhtml]
      java.lang.IllegalStateException: entityManager is null
           at org.jboss.seam.framework.EntityQuery.validate(EntityQuery.java:39)
           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.seam.util.Reflections.invoke(Reflections.java:21)
           at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
           at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
           at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
           at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
           at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:38)
           at org.jboss.seam.util.Work.workInTransaction(Work.java:40)
           at org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:32)
           at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
           at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
           at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
           at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
           at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:155)
           at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:91)
           at org.jboss.seam.framework.EntityQuery_$$_javassist_1.validate(EntityQuery_$$_javassist_1.java)
           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.seam.util.Reflections.invoke(Reflections.java:21)
           at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125)
           at org.jboss.seam.Component.callComponentMethod(Component.java:2074)
           at org.jboss.seam.Component.callCreateMethod(Component.java:1997)
           at org.jboss.seam.Component.newInstance(Component.java:1968)
           at org.jboss.seam.Component.getInstance(Component.java:1865)
           at org.jboss.seam.Component.getInstance(Component.java:1832)
           at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55)
           at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50)
           at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166)
           at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53)
           at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
           at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
           at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
           at org.jboss.el.parser.AstValue.getValue(AstValue.java:63)
           at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
           at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:112)
           at org.jboss.seam.navigation.Param.getStringValueFromModel(Param.java:132)
           at org.jboss.seam.navigation.Pages.getStringValuesFromModel(Pages.java:688)
           at org.jboss.seam.ui.component.UISeamCommandBase.getUrl(UISeamCommandBase.java:51)
           at org.jboss.seam.ui.renderkit.LinkRendererBase.doEncodeBegin(LinkRendererBase.java:26)
           at org.jboss.seam.ui.util.cdk.RendererBase.encodeBegin(RendererBase.java:79)
           at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:788)
           at javax.faces.component.UIComponent.encodeAll(UIComponent.java:884)
           at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
           at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
           at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
           at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
           at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
           at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
           at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
           at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
           at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:307)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
           at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
           at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
           at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
           at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
           at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
           at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
           at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
           at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
           at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
           at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
           at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
           at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
           at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
           at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
           at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
           at org.josso.tc55.agent.SSOAgentValve.invoke(SSOAgentValve.java:271)
           at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
           at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
           at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
           at java.lang.Thread.run(Unknown Source)





      But If I change UMC persistence unit name to just entityManager it seems to be working. Could any 1 throw any light where I am being wrong ?


      appreciate your help in advance.


      thx,
      Srinivas Chamarthi