4 Replies Latest reply on Oct 29, 2006 12:36 AM by bsheward

error : In attribute requires value for component , why ?

eddielee Oct 27, 2006 11:42 PM

Content.java

package com.vsoft.aixinweb.view ;

import java.util.Date;

import javax.ejb.Stateless;
import javax.faces.context.FacesContext;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.log.Log;

import com.vsoft.aixinweb.persistent.dao.ContentDaoImpl;
import com.vsoft.aixinweb.persistent.model.Content;

/**
 * @author Eddie L
 *
 */
@ Stateless
@ Name ( "contentAction" )
@Scope(ScopeType.EVENT)
public class ContentAction implements IfContentAction
{
 @ In
 private Content content ;

 @ In
 private ContentDaoImpl contentDaoImpl ;

 @ In
 private FacesContext facesContext ;

 @ Logger
 private Log log ;

 /* (non-Javadoc)
 * @see com.vsoft.aixinweb.view.IfContentAction#addContent()
 */
 public String addContent()
 {
 content.setCreateDate ( new Date() );
 contentDaoImpl.insertContent ( this.content );
 return "success";
 }

 public void setContentDaoImpl ( ContentDaoImpl contentDaoImpl )
 {
 this.contentDaoImpl = contentDaoImpl ;
 }

}

ContentDaoImpl.java

package com.vsoft.aixinweb.persistent.dao ;

import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.log.Log;

import com.vsoft.aixinweb.persistent.model.Content;

/**
 * @author Eddie L
 *
 */
@ Stateless
@ Name ( "contentDaoImpl" )
@Scope(ScopeType.APPLICATION)
public class ContentDaoImpl implements ContentDao
{

 @ PersistenceContext
 private EntityManager em ;

 @ Logger
 private Log log ;

 public void delContent ( Content content )
 {
 log.info ( "ContentDaoImpl delContent content.id : "
 + content.getId ( ).toString ( ) ) ;
 em.remove ( content ) ;
 }

 public Content getOneRecord ( String id )
 {
 Query q = em.createQuery ( "from Content c where c.id = ?1" ) ;
 q.setParameter ( 1 , id ) ;
 return ( Content ) q.getSingleResult ( ) ;
 }

 public List < Content > getRecord ( String sql ,
 Map < String , Object > filter , int ... is )
 {
 Query q = em.createQuery ( sql ) ;
 Iterator iterator = filter.keySet ( ).iterator ( ) ;
 while ( iterator.hasNext ( ) )
 {
 String element = ( String ) iterator.next ( ) ;
 q.setParameter ( element , filter.get ( element ) ) ;
 }
 if ( is.length > 0 )
 {
 q.setFirstResult ( is [ 0 ] ) ;
 q.setMaxResults ( is [ 1 ] ) ;
 }

 return q.getResultList ( );
 }

 public void insertContent ( Content content )
 {
 em.persist ( content ) ;
 }

 public void updateContent ( Content content )
 {
 em.merge ( content ) ;
 }

}

interface ContentDao.java

package com.vsoft.aixinweb.persistent.dao;

import java.util.List;
import java.util.Map;

import javax.ejb.Local;

import com.vsoft.aixinweb.persistent.model.Content;

/**
 * @author Eddie L
 *
 */
@Local
public interface ContentDao
{
 public void insertContent(Content content);

 public void updateContent(Content content);

 public void delContent(Content content);


 public Content getOneRecord(String id);


 public List<Content> getRecord(String sql, Map<String, Object> filter, int ...is );


}

interface IfContentAction.java

package com.vsoft.aixinweb.view ;

import javax.ejb.Local;

@Local
public interface IfContentAction
{

 public String addContent ( ) ;

}

ContentAction.java

package com.vsoft.aixinweb.view ;

import java.util.Date;

import javax.ejb.Stateless;
import javax.faces.context.FacesContext;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.log.Log;

import com.vsoft.aixinweb.persistent.dao.ContentDaoImpl;
import com.vsoft.aixinweb.persistent.model.Content;

/**
 * @author Eddie L
 *
 */
@ Stateless
@ Name ( "contentAction" )
@Scope(ScopeType.EVENT)
public class ContentAction implements IfContentAction
{
 @ In
 private Content content ;

 @ In
 private ContentDaoImpl contentDaoImpl ;

 @ In
 private FacesContext facesContext ;

 @ Logger
 private Log log ;

 /* (non-Javadoc)
 * @see com.vsoft.aixinweb.view.IfContentAction#addContent()
 */
 public String addContent()
 {
 content.setCreateDate ( new Date() );
 contentDaoImpl.insertContent ( this.content );
 return "success";
 }

 public void setContentDaoImpl ( ContentDaoImpl contentDaoImpl )
 {
 this.contentDaoImpl = contentDaoImpl ;
 }

}

test.jsp

<h:commandButton styleClass="formButton" type="submit" value="OK"
 action="#{contentAction.addContent}" />

javax.servlet.ServletException: Error calling action method of component with id _id6:_id26
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:121)
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.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
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)
11:16:36,015 INFO [SeamExceptionFilter] killing transaction
11:16:36,015 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.FacesException: Error calling action method of component with id _id6:_id26
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
at javax.faces.component.UICommand.broadcast(UICommand.java:106)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:164)
at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:316)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:106)
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.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
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: javax.faces.el.EvaluationException: /test.xhtml @59,45 action="#{contentAction.addContent}": javax.ejb.EJBTransactionRolledbackException: org.jboss.seam.RequiredException: In attribute requires value for component: contentAction.contentDaoImpl
at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73)
at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
... 30 more
Caused by: javax.ejb.EJBTransactionRolledbackException: org.jboss.seam.RequiredException: In attribute requires value for component: contentAction.contentDaoImpl
at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:93)
at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:201)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
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.stateless.StatelessContainer.localInvoke(StatelessContainer.java:181)
at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79)
at $Proxy114.addContent(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 com.sun.el.parser.AstValue.invoke(AstValue.java:151)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
... 31 more
Caused by: org.jboss.seam.RequiredException: In attribute requires value for component: contentAction.contentDaoImpl
at org.jboss.seam.Component.getInstanceToInject(Component.java:1382)
at org.jboss.seam.Component.injectFields(Component.java:1024)
at org.jboss.seam.Component.inject(Component.java:795)
at org.jboss.seam.interceptors.BijectionInterceptor.bijectTargetComponent(BijectionInterceptor.java:30)
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.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:82)
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.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.BusinessProcessInterceptor.manageBusinessProcessContext(BusinessProcessInterceptor.java:60)
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.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:39)
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.jboss.seam.util.Reflections.invoke(Reflections.java:13)
at org.jboss.seam.interceptors.Interceptor.aroundInvoke(Interceptor.java:90)
at org.jboss.seam.interceptors.SeamInvocationContext.proceed(SeamInvocationContext.java:60)
at org.jboss.seam.ejb.SeamInterceptor.aroundInvokeInContexts(SeamInterceptor.java:73)
at org.jboss.seam.ejb.SeamInterceptor.aroundInvoke(SeamInterceptor.java:45)
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.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
... 54 more

how can i do ?

1. Re: error : In attribute requires value for component , why

monkeyden Oct 28, 2006 2:09 AM (in response to eddielee)

@ In(required=false)
private ContentDaoImpl contentDaoImpl;

@In
private ContentDaoImpl contentDaoImpl;

@Factory("contentDaoImpl")
public void loadContentDaoImpl(){
 //create it
 //save it to some context
}

2. Re: error : In attribute requires value for component , why

eddielee Oct 28, 2006 2:21 AM (in response to eddielee)

"monkeyden" wrote:

@ In(required=false)
private ContentDaoImpl contentDaoImpl;

@In
private ContentDaoImpl contentDaoImpl;

@Factory("contentDaoImpl")
public void loadContentDaoImpl(){
 //create it
 //save it to some context
}

sorry , I'm don't understand.

@Factory("contentDaoImpl")
public void loadContentDaoImpl(){
 //create it
 //save it to some context
}

3. Re: error : In attribute requires value for component , why

pmuir Oct 28, 2006 12:49 PM (in response to eddielee)
@ In(create=true) private ContentDaoImpl contentDaoImpl;
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4. Re: error : In attribute requires value for component , why

bsheward Oct 29, 2006 12:36 AM (in response to eddielee)

The critical part of the stack trace that you attached is:

Caused by: javax.faces.el.EvaluationException: /test.xhtml @59,45 action="#{contentAction.addContent}": javax.ejb.EJBTransactionRolledbackException: org.jboss.seam.RequiredException: In attribute requires value for component: contentAction.contentDaoImpl

The previous posts are all different techniques to ensure that the contentAction.contentDaoImpl component gets a value.
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