Deleting data in a isolated table
nifs Aug 1, 2010 12:14 AMHi everyone
It should be grateful that you could help me; i've got a isolated table UserPermission, that has info of UserAccount; so if i delete a user, all his permissions must be deleted too
Here the relevant code:
@Name("userAccountHome") public class UserAccountHome extends EntityHome<UserAccount> { @In(value="#{userPermissionHome.newInstance()}") UserPermissionHome uphome; ... //This is a test code, so for now it doesn't look very good public boolean borrarUsuario(String nombreUsuario) { uphome.borrarPermisoDelUsuario(nombreUsuario); identityManager.deleteUser(nombreUsuario); return true; } }
@Name("userPermissionHome") public class UserPermissionHome extends EntityHome<UserPermission> { ... public void setUserPermissionId(Long id) { setId(id); } public Long getUserPermissionId() { return (Long) getId(); } public void borrarPermisoDelUsuario(String userz) { //For know i try to delete one register setUserPermissionId(11L); //I checked if the instance is the right one System.out.println("Look here: " + getInstance() + "with action: " + getInstance().getAction()); remove(); //Here the problem begin } }
When i execute this, i get:
Exception during request processing: Caused by javax.el.ELException with message: "java.lang.NullPointerException" org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:339) org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:280) org.jboss.el.parser.AstMethodSuffix.getValue(AstMethodSuffix.java:59) org.jboss.el.parser.AstMethodSuffix.invoke(AstMethodSuffix.java:65) org.jboss.el.parser.AstValue.invoke(AstValue.java:96) org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) org.jboss.seam.core.Expressions$2.invoke(Expressions.java:175) org.jboss.seam.navigation.Pages.callAction(Pages.java:692) org.jboss.seam.navigation.Pages.preRender(Pages.java:330) org.jboss.seam.jsf.SeamPhaseListener.preRenderPage(SeamPhaseListener.java:561) org.jboss.seam.jsf.SeamPhaseListener.beforeRenderResponse(SeamPhaseListener.java:472) org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:148) org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:118) com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:214) com.sun.faces.lifecycle.Phase.doPhase(Phase.java:96) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495) org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) java.lang.Thread.run(Thread.java:619) Caused by java.lang.NullPointerException with message: "" org.jboss.seam.framework.Controller.debug(Controller.java:197) org.jboss.seam.framework.Home.deletedMessage(Home.java:72) org.jboss.seam.framework.EntityHome.remove(EntityHome.java:109) com.naif.usuarios.userpermission.UserPermissionHome.borrarPermisoDelUsuario(UserPermissionHome.java:883) com.naif.usuarios.useraccount.UserAccountHome.borrarUsuario(UserAccountHome.java:161) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.jboss.seam.util.Reflections.invoke(Reflections.java:22) org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:32) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:77) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:97) org.jboss.seam.util.Work.workInTransaction(Work.java:47) org.jboss.seam.transaction.TransactionInterceptor.aroundInvoke(TransactionInterceptor.java:91) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) com.naif.usuarios.useraccount.UserAccountHome_$$_javassist_seam_3.borrarUsuario(UserAccountHome_$$_javassist_seam_3.java) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:335) org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:280) org.jboss.el.parser.AstMethodSuffix.getValue(AstMethodSuffix.java:59) org.jboss.el.parser.AstMethodSuffix.invoke(AstMethodSuffix.java:65) org.jboss.el.parser.AstValue.invoke(AstValue.java:96) org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) org.jboss.seam.core.Expressions$2.invoke(Expressions.java:175) org.jboss.seam.navigation.Pages.callAction(Pages.java:692) org.jboss.seam.navigation.Pages.preRender(Pages.java:330) org.jboss.seam.jsf.SeamPhaseListener.preRenderPage(SeamPhaseListener.java:561) org.jboss.seam.jsf.SeamPhaseListener.beforeRenderResponse(SeamPhaseListener.java:472) org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:148) org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:118) com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:214) com.sun.faces.lifecycle.Phase.doPhase(Phase.java:96) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495) org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432) org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) java.lang.Thread.run(Thread.java:619)
I checked some stuff, and i didn't find null values, so i don't know what could be the problem
!!!Thanks for your time and attention!!!