@ManagedBean
@RequestScoped
public class Credenciales implements Serializable {

   private String username;
   private String password;

   public Credenciales() {
   }

   public Credenciales(String user, String password){
      this.username = user;
      this.password = password;
   }

   public String getUsername() {
      return username;
   }

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

   public String getPassword() {
      return password;
   }

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

}