8 Replies Latest reply on Oct 15, 2007 12:21 PM by orhan yilmaz

    component injection seam 1.2.1. ga

    orhan y?lmaz Newbie

      jboss 4.2
      seam 1.2.1

      i have seam component

      package iu.ce.ejb.service;
      import javax.ejb.Local;
      import iu.ce.entity.User;
      public interface UserService {
       public User getUser(String username, String password);

      import iu.ce.service.UserService;
      import javax.ejb.Stateless;
      import javax.persistence.EntityManager;
      import javax.persistence.NoResultException;
      import javax.persistence.PersistenceContext;
      import javax.persistence.Query;
      import org.jboss.seam.annotations.In;
      import org.jboss.seam.annotations.Logger;
      import org.jboss.seam.annotations.Name;
      import org.jboss.seam.annotations.Out;
      import org.jboss.seam.log.Log;
      import org.jboss.seam.security.Identity;
      public class UserServiceBean implements UserService {
       Identity identity;
       Log log;
       @PersistenceContext(unitName = "iuce")
       private EntityManager entityManager;
       public User getUser(String username, String password) {
       try {
       Query q = entityManager.createQuery("from User u where"
       + " username=:username and password=:password");
       q.setParameter("username", username);
       q.setParameter("password", password);
       return (User) q.getSingleResult();
       } catch (NoResultException e) {
       return null;
       public void authenticate() {
       log.info("authenticating #0", identity.getUsername());
       getUser("", "");
       //userServiceBean.getUser("h", "h");
       // write your authentication logic here,
       // return true if the authentication was
       // successful, false otherwise
       //return true;

      authentication works fine

      in application server log
      00:47:29,153 INFO [Component] Component: userServiceBean, scope: STATELESS, type: STATELESS_SESSION_BEAN, class: iu.ce.bean.UserServiceBean, JNDI: iuce-ear/UserServiceBean/local

      component seems installed

      i have another component standart Authentication component which wizards creates.

      when i tried to insert this
      UserBeanService userBeanService

      UserBeanService userBeanService

      it gives following error
      In attribute requires non-null value ...

      UserServiceBean returns null.

      i want to learn how can i inject seam component to another component.