Hi
Ok
this is the code that implements the listener interface:
-----------------------------
package com.payvand.seam;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.hibernate.validator.Valid;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.core.FacesMessages;
@Stateless
@Name("regis")
public class SessionAction implements Listeners{
@In @Valid
private User user;
@PersistenceContext
private EntityManager em;
public String register() {
// TODO Auto-generated method stub
List listUser=em.createQuery("select username from User where
username=:username")
.setParameter("username",user.getUserName()).getResultList();
if(listUser.size()==0){
em.persist(user);
return "/register.jsp";
}
else
{
FacesMessages.instance().add("User #{user.username}
already exists");
return null;
}
}
}
-----------------
this is the component.xml file :
false
#{ejbName}/local
----------
here is my ejb-jar.xml:
<ejb-jar>
<assembly-descriptor>
<interceptor-binding>
<ejb-name>*</ejb-name>
<interceptor-class>org.jboss.seam.ejb.SeamInterceptor</interceptor-class>
</interceptor-binding>
</assembly-descriptor>
</ejb-jar>
---
and this is persistence.xml:
<persistence-unit name="userDatabase">
org.hibernate.ejb.HibernatePersistence
<jta-data-source>java:/DefaultDS</jta-data-source>
</persistence-unit>
---
and finally this is the JSP file:
<%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f" %>
<%@ taglib uri="http://jboss.com/products/seam/taglib"; prefix="s" %>
<f:view>
<h:form>
<s:validateAll>
Username
<h:inputText value="#{user.userName}" required="true">
Password
<h:inputSecret value="#{user.pass}" required="true">
</s:validateAll>
<h:messages/>
<h:commandButton type="submit" value="Listeners"
action="#{regis.register}">
</h:form>
</f:view>
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