JBossDeveloper

Hi Leo
In have just User and Role as entities and RegsiterBean as a bean.
Leo please tell me how to check if the bean works correctly ?
PS : i'm new in jee and seam

Thank u 

wadhah jebri wrote on Jan 05, 2011 15:59:


Hi Leo
I have just User and Role as entities and RegsiterBean as a bean.
Leo please tell me how to check if the bean works correctly ?
PS : i'm new in jee and seam

Thank u 

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Leo van den Berg wrote on Jan 05, 2011 12:05:


Hi,

as proposed in my earlier answer. Check if the bean works correctly and is intercepted by Seam.

A regular error would be that a specific attribute could be found on a named component. Instead it staes that it can't find the attribute on an Object.

You should find the EJB in server configuration (check for it in the log file). Furthermore check in the log also if the Seam component is created with the specified name.

Leo

P.S. I see a lot of In annotations in your action bean, but I don't see any code how it gets there. Is this the only code you have or are more pieces missing ?

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Hi Leo,
The problem is resolved i should add the getter and setter added in the bean on the interface ...

Now i have an other error the name,username and password are stored on the database but the roles no.
I have this error

Caused by java.lang.IllegalStateException with message: "Could not commit transaction"

Leo van den Berg wrote on Jan 07, 2011 02:50:


Hi,


The error is probably caused because you don't have entity conversion in your selectMany... Look at the s:convertEntity tag of Sesm, which is placed in side the tag. It will take care of converting the selected values to entities.


Leo


P.S: Seam is a set of components to deal with the complexity of J2EE etc. Before using it you should have a baic knowledge of the used technologies.

Ok thank u for your answer ...
PS: i'm an engineering student we have seen and practice jee technologie since 3 months and now they gives us a project with seam :o 

Leo van den Berg wrote on Jan 07, 2011 04:51:


Hi,

As mentioned; Seam is pretty complex, but fortunately the documentation is really good and see if you can get a copy of the book Seam in Action from Manning. The book contains all the background information you need to learn how Seam works in cooperation with all the technologies. Als download the distribution. It contains all the examples/demo and they are very useful.

P.S. get used to it. In the real world you will see a lot of people (msot of them commercial) who think you can use new technologies in just 3 months.

I have a copy of Seam in action :)
I added this tag

<s:convertEntity/>

i had this error

Exception during request processing
Caused by javax.servlet.ServletException with message: For input string: admin

Hi Leo
I made same modifications i added on the table Role two roles Admin and Agent and i added this function in the RegisterBean :

@Factory("selectedRoles")
     public List<Role> getSelectedRoles() {
          selectedRoles = em.createQuery("select rolename from Role").getResultList();
          return selectedRoles;
     }

this is the xhtml page : register.xhtml

     <h:selectManyCheckbox id="roles" value="#{user.roles}"
                              layout="pageDirection">
                              <s:selectItems var="role" itemLabel="#{role.rolename}"
                                   value="#{Register.selectedRoles}" />
                              <s:convertEntity />
                         </h:selectManyCheckbox>

The first problem the checkboxes are displayted without label and when i clic on the register button i have this error:

Exception during request processing:
Caused by javax.servlet.ServletException with message: For input string: agent

javax.faces.webapp.FacesServlet.service(FacesServlet.java:277)
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$FilterChainImpl.doFilter(SeamFilter.java:69)
org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
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:235)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
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:158)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Thread.java:662)

Leo
I will want to assign roles to a user during registration how should i proceed?

Leo this is my role entity

package org.domain.seam.entity;

import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.Table;
import org.hibernate.validator.Length;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.security.management.RoleName;

@Name("role")
@Entity
@Table(name = "Role")
public class Role implements Serializable {
     /**
      * 
      */
     private static final long serialVersionUID = 2392158972471437066L;

     private Long id;
     private String rolename;

     @Id
     @GeneratedValue
     public Long getId() {
          return id;
     }

     public void setId(Long id) {
          this.id = id;
     }

     @RoleName
     @Length(max = 20)
     public String getRolename() {
          return rolename;
     }

     public void setRolename(String rolename) {
          this.rolename = rolename;
     }

}

This is my User entity

package org.domain.seam.entity;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.Table;
import org.hibernate.validator.Length;
import org.hibernate.validator.NotNull;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.security.management.UserRoles;

@Entity
@Name("user")
@Table(name = "User")
public class User implements Serializable {

     /**
      * 
      */
     private static final long serialVersionUID = -2133760147013842042L;
     private Long id;
     private String name;
     private String password;
     private String username;
     private List<Role> roles = new ArrayList<Role>();

     @Id
     @GeneratedValue
     public Long getId() {
          return id;
     }

     public void setId(Long id) {
          this.id = id;
     }

     @Length(max = 20)
     @NotNull
     public String getName() {
          return name;
     }

     public void setName(String name) {
          this.name = name;
     }

     @Length(max = 20)
     @NotNull
     public String getPassword() {
          return password;
     }

     public void setPassword(String password) {
          this.password = password;
     }

     @Length(max = 20)
     @NotNull
     public String getUsername() {
          return username;
     }

     public void setUsername(String username) {
          this.username = username;
     }

     @ManyToMany(targetEntity = Role.class)
     @UserRoles
     @JoinTable(name = "UsersRoles", joinColumns = @JoinColumn(name = "user_id"), inverseJoinColumns = @JoinColumn(name = "role_id"))
     public List<Role> getRoles() {
          return roles;
     }

     public void setRoles(List<Role> roles) {
          this.roles = roles;
     }
}

This is my RegisterBean

package org.domain.seam.session;


import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.domain.seam.entity.User;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.log.Log;
import org.jboss.seam.international.StatusMessages;

@Stateless
@Name("Register")
public class RegisterBean implements Register {
     @Logger
     private Log log;

     @In
     StatusMessages statusMessages;
     @In
     private User user;
     @PersistenceContext
     private EntityManager em;

     public User getUser() {
          return user;
     }

     public void setUser(User user) {
          this.user = user;
     }

     public String register() {
          // implement your business logic here
          // log.info("Register.register() action called");
          // statusMessages.add("register");
          em.persist(user);
          return "/registered.xhtml";
     }

}

This is my RoleListingBean

package org.domain.seam.session;

import java.util.ArrayList;
import java.util.List;

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

import org.domain.seam.entity.Role;
import org.domain.seam.entity.User;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Out;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.log.Log;
import org.jboss.seam.international.StatusMessages;

@Stateless
@Name("RoleListing")
@Scope(ScopeType.APPLICATION)
public class RoleListingBean implements RoleListing {
     @Logger
     private Log log;

     @In
     StatusMessages statusMessages;

     @PersistenceContext
     private EntityManager em;
     @In
     private User user;
     @Out
     private List<Role> roles = new ArrayList<Role>(user.getRoles());

     @Factory("roles")
     public List<Role> getRoles() {
          roles = em.createQuery("select id,rolename from Role").getResultList();
          return roles;
     }

     public void setRoles(List<Role> roles) {
          this.roles = roles;
     }

     public void roleListing() {
          // implement your business logic here
          log.info("RoleListing.roleListing() action called");
          statusMessages.add("roleListing");
     }

     // add additional action methods

}

This is my register.xhtml

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition 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:rich="http://richfaces.org/rich"
     xmlns:a="http://richfaces.org/a4j" template="layout/template.xhtml">

     <ui:define name="body">

          <rich:panel>

               <f:facet name="header">register</f:facet>

               <h:form id="RegisterForm">
                    <h:panelGrid columns="2">
                      Username: <h:inputText value="#{user.username}" required="true" />

                  Real Name: <h:inputText value="#{user.name}"
                              required="true" />
                  Password: <h:inputSecret value="#{user.password}"
                              required="true" />
                    Role: <rich:pickList value="#{user.roles}">
                              <s:selectItems var="_role" value="#{RoleListing.roles}" />
                         </rich:pickList>
                    </h:panelGrid>

                    <h:commandButton id="register" value="register!"
                         action="#{Register.register}" />

               </h:form>

          </rich:panel>

     </ui:define>

</ui:composition>

Finally this is the error :

Error reading 'roles' on type org.javassist.tmp.java.lang.Object_$$_javassist_seam_2

PS : I am really sorry LEO