[jboss-user] [JBoss Seam] - Error in trying to injecting the bean

cormet do-not-reply at jboss.com
Thu May 24 19:23:13 EDT 2007


Hi All,

I am quite new to jboss and Currently, i am using hibernate 3.2.1, seam 1.2.1  GA. my problem is that i would like to inject the bean called "generalJournal" when it is submited. However I got error saying that:


javax.faces.el.EvaluationException: Exception while invoking expression #{accountAction.recordJournal}
	at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:156)
	at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:58)
	at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:75)
	at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:148)
	at org.jboss.seam.pages.Page.enter(Page.java:229)
	at org.jboss.seam.core.Pages.enterPage(Pages.java:276)
	at org.jboss.seam.jsf.AbstractSeamPhaseListener.enterPage(AbstractSeamPhaseListener.java:276)
	at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:214)
	at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:56)
	at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:73)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:126)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:183)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
	at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
	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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
	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.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
	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: org.jboss.seam.RequiredException: In attribute requires non-null value: accountAction.generalJournal
	at org.jboss.seam.Component.getValueToInject(Component.java:1919)
	at org.jboss.seam.Component.injectAttributes(Component.java:1368)
	at org.jboss.seam.Component.inject(Component.java:1195)
	at org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
	at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
	at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
	at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:151)
	at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:87)
	at com.medansoft.accountingsystem.controller.AccountAction_$$_javassist_1.recordJournal(AccountAction_$$_javassist_1.java)
	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:132)
	... 42 more

It complaint that the "generalJournal" is null, but i do put "create=true" which asking seam to create when it is null. iam quite confuse with the documentation provided :(. Can anyone give me some guideline about it?

Cheers,

here are my code:

home.xhtml

  | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
  |                       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  | <html xmlns="http://www.w3.org/1999/xhtml"
  |       xmlns:s="http://jboss.com/products/seam/taglib"
  |       xmlns:ui="http://java.sun.com/jsf/facelets"
  |       xmlns:f="http://java.sun.com/jsf/core"
  |       xmlns:h="http://java.sun.com/jsf/html"
  |       xmlns:c="http://java.sun.com/jsp/jstl/core"
  |       xmlns:rich="http://richfaces.ajax4jsf.org/rich"
  |       xmlns:a4j="https://ajax4jsf.dev.java.net/ajax">
  | <body>
  |     <ui:composition template="/WEB-INF/pages/templates/master.xhtml">
  |         <ui:define name="body">
  | 			<s:link value="Account List" view="/pages/account/home.xhtml"/>
  | 			<s:link value="Record Journal" view="/pages/account/journal/record.xhtml"/>
  |         </ui:define>
  |     </ui:composition> 
  | </body> 
  | </html>
  | 

record.xhtml:

  | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
  |                       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  | <html xmlns="http://www.w3.org/1999/xhtml"
  |       xmlns:s="http://jboss.com/products/seam/taglib"
  |       xmlns:ui="http://java.sun.com/jsf/facelets"
  |       xmlns:f="http://java.sun.com/jsf/core"
  |       xmlns:h="http://java.sun.com/jsf/html"
  |       xmlns:c="http://java.sun.com/jsp/jstl/core"
  |       xmlns:rich="http://richfaces.ajax4jsf.org/rich"
  |       xmlns:a4j="https://ajax4jsf.dev.java.net/ajax"
  |       xmlns:jp="http://www.jenia.org/jsf/popup">
  | <body>
  | 	<ui:composition template="/WEB-INF/pages/templates/master.xhtml">
  | 		<ui:define name="body">
  | 			<h:form>
  | 				<s:decorate id="journalDecorate" template="edit.xhtml">
  | 					<ui:define name="label">General Journal #:</ui:define>
  | 					<h:inputText id="journal" value="#{generalJournal.number}" required="true">
  | 						
  | 					</h:inputText>
  | 				</s:decorate>
  | 				<s:decorate id="dateDecorate" template="edit.xhtml">
  | 					<ui:define name="label">Date:</ui:define>
  | 					<h:inputText id="date" value="#{generalJournal.date}" required="true" readonly="true">
  | 
  | 					</h:inputText>
  | 					<jp:popupCalendar for="date" format="dd/MM/yyyy">
  | 						<h:outputText value="Popup calendar" />
  | 					</jp:popupCalendar>
  | 				</s:decorate>
  | 				<s:decorate id="memoDecorate" template="edit.xhtml">
  | 					<ui:define name="label">Memo:</ui:define>
  | 					<h:inputText id="menu" value="#{generalJournal.memo}" required="true">
  | 
  | 					</h:inputText>
  | 				</s:decorate>
  | 				
  | 				<div class="buttonBox">
  | 					<h:commandButton id="create" type="submit" value="Create" action="#{accountAction.createGeneralJournal}"/>
  | 					 
  | 					<s:button id="cancel" value="Cancel" view="/pages/home/home.xhtml"/>
  | 				</div>												
  | 
  | 			</h:form>
  | 		</ui:define>
  | 	</ui:composition> 
  | </body> 
  | </html>
  | 

pages.xml

  | <!DOCTYPE pages PUBLIC
  |   "-//JBoss/Seam Exceptions Configuration DTD 1.2//EN"
  |   "http://jboss.com/products/seam/pages-1.2.dtd">
  |   
  | <pages login-view-id="/login.xhtml">
  | 	<page view-id="/pages/account/home.xhtml" action="#{accountAction.accountHome}"/>
  | 	<page view-id="/pages/account/journal/record.xhtml" action="#{accountAction.recordJournal}"/>
  |     
  |     
  |     <page view-id="/pages/*" login-required="true"/>
  |     
  |     <exception class="org.jboss.seam.security.NotLoggedInException">
  |         <redirect view-id="/login.xhtml">
  |             <message>You must be logged in to perform this action</message>
  |         </redirect>
  |     </exception>
  |     
  |     <exception class="org.jboss.seam.security.AuthorizationException">
  |         <end-conversation/>
  |         <redirect view-id="/security_error.xhtml">
  |             <message>You do not have the necessary security privileges to perform this action.</message>
  |         </redirect>
  |     </exception>
  | </pages>
  | 

AccountAction.java

  | @Name("accountAction") 
  | @Scope(EVENT)
  | public class AccountAction implements Serializable{
  | 	private static final long serialVersionUID = 5884510664142728026L;
  | 	
  | 	@Logger
  | 	private Log log;
  | 	
  | 	@In("#{accountDao}")
  | 	AccountDao accountDao;
  | 	
  | 	@In("#{me}")
  | 	User me;
  | 	
  | 	@Out(value="accountTreeList", required=false)
  | 	private AccountTreeDisplay parentAccountDisplay;
  | 
  | 	@DataModel(value="accountList")
  | 	private List<AccountTreeDisplay> accountList;
  | 
  | 	@In(create=true)
  | 	private GeneralJournal generalJournal;
  | 
  | 	public void recordJournal() throws Exception {
  | 		if(journalId == null || journalId.equals("")) {
  | 			// recording new journal
  | 		} else {
  | 			// reload existing journal
  | 		}
  | 	}
  | 	
  | 	public String createGeneralJournal() throws Exception {
  | 		log.debug("createGeneralJournal :: # :: " + generalJournal.getNumber());
  | 		return null;
  | 	}

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