Return-Path: 
 <users-return-11192-apmail-openjpa-users-archive=openjpa.apache.org@openjpa.apache.org>
X-Original-To: apmail-openjpa-users-archive@minotaur.apache.org
Delivered-To: apmail-openjpa-users-archive@minotaur.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id BE5D210A0F
	for <apmail-openjpa-users-archive@minotaur.apache.org>;
 Fri, 18 Oct 2013 20:03:16 +0000 (UTC)
Received: (qmail 77456 invoked by uid 500); 18 Oct 2013 20:03:12 -0000
Delivered-To: apmail-openjpa-users-archive@openjpa.apache.org
Received: (qmail 77420 invoked by uid 500); 18 Oct 2013 20:03:07 -0000
Mailing-List: contact users-help@openjpa.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:users-help@openjpa.apache.org>
List-Unsubscribe: <mailto:users-unsubscribe@openjpa.apache.org>
List-Post: <mailto:users@openjpa.apache.org>
List-Id: <users.openjpa.apache.org>
Reply-To: users@openjpa.apache.org
Delivered-To: mailing list users@openjpa.apache.org
Received: (qmail 77406 invoked by uid 99); 18 Oct 2013 20:03:05 -0000
Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 18 Oct 2013 20:03:05 +0000
X-ASF-Spam-Status: No, hits=1.5 required=5.0
	tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS
X-Spam-Check-By: apache.org
Received-SPF: pass (athena.apache.org: domain of maxtorzito@gmail.com
 designates 209.85.217.176 as permitted sender)
Received: from [209.85.217.176] (HELO mail-lb0-f176.google.com)
 (209.85.217.176)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 18 Oct 2013 20:03:00 +0000
Received: by mail-lb0-f176.google.com with SMTP id y6so3485120lbh.21
        for <users@openjpa.apache.org>; Fri, 18 Oct 2013 13:02:39 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        bh=AotJLG/9cish39NDdYhYlOkjlt8xr37Y9dUmq7XOrIA=;
        b=Klo/MuuCn4sA45CW7irCov0wRDszrtlcqJwsLBGqQrX4+b9+oEDIfp4MHmyyw6djBA
         5v1bwd1Fs0f2qoD08kEQJ7V4/IMQ8bTCNCehmgQmfNbu59iPNwsTTx3xzuDdYf4DN+pw
         nHnJ3HNNxLCu+YDwT6n88JBkQGjCu7MCA3E4atodRgXfMISS6PVYSzcNaxpZXWHrdcdR
         34Kot8hP6xVYm2Ja6Ylg7OJofSnOC+QdWXlPXPVP9giTC+UqwmBu0yiP0R/qb1lhJeUG
         9YL/eAEt7dTl6Ej3pLt1rbqFhTcCRmF6m04x0/Tcsc2fT8pr8L8FSoCgOvInghTSNTHY
         u2JA==
MIME-Version: 1.0
X-Received: by 10.112.198.39 with SMTP id iz7mr3826862lbc.24.1382126559137;
 Fri, 18 Oct 2013 13:02:39 -0700 (PDT)
Received: by 10.112.5.164 with HTTP; Fri, 18 Oct 2013 13:02:39 -0700 (PDT)
In-Reply-To: 
 <CAPyf0gfX+vhu_yaGhO8ezBMX0N2EY73xj1=+4xDzg5kB7=Dx1g@mail.gmail.com>
References: 
 <CAPyf0gfX+vhu_yaGhO8ezBMX0N2EY73xj1=+4xDzg5kB7=Dx1g@mail.gmail.com>
Date: Fri, 18 Oct 2013 15:02:39 -0500
Message-ID: 
 <CAPyf0gf3MF3x_iCmN7aej5To_R0gWiGBc5TE6QVjonMDWaPVKw@mail.gmail.com>
Subject: Re: Entity cant be refreshed with new list values
From: =?ISO-8859-1?Q?Jos=E9_Luis_Cetina?= <maxtorzito@gmail.com>
To: users@openjpa.apache.org
Content-Type: multipart/alternative; boundary=001a11c233ea97979a04e9096a94
X-Virus-Checked: Checked by ClamAV on apache.org

--001a11c233ea97979a04e9096a94
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

In the previous example i tried to set the list in the ejb, but if removed
and then put the list in the managed bean i get the same behavior


@Named
public class MyBean implements Serializable{

 @EJB
 private MyEJB ejb;

 public void anyMethod(){
   User user =3D ejb.getUserWithRoles();
    //i will create a list of role just for try to set any role the userJoh=
n
      List<Role> roleList =3D new ArrayList<Role>(2);
      roleList.add(new Role(1,'ADMIN'); //creating and adding role 1
      roleList.add(new Role(2,'DEVELOPER');//creating and adding role 2

     user.setRoles(roleList);

    user.getRoles(); //<---- HERE THE LIST IS ALWAYS NULL
 }

}


2013/10/18 Jos=E9 Luis Cetina <maxtorzito@gmail.com>

>
> I have a "strange" behavior, with list properties of any kind of entity.
>
> When i try to set a non empty list to a retrieved entity that has a list
> value with null (because is not fetched) the entity doesnt "reflect" the
> new non-empty values that i set.
>
> Steps
> 1. Retrieve any entity (ex. user) from database in an ejb with criterias.
> 2. The retrieved entity has a OneToMany attribute (roles) by default is
> lazy thats why if i dont do a fetch (i dont) the list is null
> 3. Then try to fill the role list with a NON-EMPTY list
> 4. Here the list that i set has values but the user list has a null in th=
e
> roles list attribute even though i set it in the step 3
>
>
> I dont know why this is happening, the only way i could fix this is
> cloning (using SerializationUtils from Apache commons.lang3) the user
> entity (see the steps) and with this work, but i dont know why.
>
> 1. Retrieve any entity (ex. user) from database in an ejb with criterias.
> 2. Clone retrieved entity and asig to new one User clonedUser =3D
> SerializationUtils.clone(originalRetrivedUser);
> 3. Then try to fill the role list with a NON-EMPTY list to the clonedUser
> 4. The list of clonedUser has the correct values
>
>
> Why i need to clone? why i cannot set a list to the entity if is not
> cloned?
>
>
> Im using Apache TomEE 1.6.0-SNAPSHOT (with the openjpa version embedded)
>
>
> Scenario:
>
> ***** ENTITIES *****
> @Entity
> public class User implements Serializable{
>
>    @Id
>    private int id;
>    private String userName;
>    private String password;
>    @OneToMany(mappedBy =3D "user")
>    private List<Role> roles;
>
>    //getters and setters..
>
> }
>
>
> @Entity
> public class Role implements Serializable{
>
>    @Id
>    private int id;
>    private String roleName;
>    @ManyToOne
>    @JoinColumn(name =3D "user_id")
>    private User user;
>
>   //getters and setters..
> }
>
>
> **** EJB CLASS ****
> @Stateless
> public class MyEJB{
>
>     @PersistenceContext(unitName =3D"ANY_NAME")
>     private EntityManager em;
>
>   public User getUserWithRoles(){
>
>         CriteriaBuilder cb =3D em.getCriteriaBuilder();
>         CriteriaQuery<User> cq =3D cb.createQuery(User.class);
>         Root<User> root =3D cq.from(User.class);
>
>         cq.where(cb.equal(root.get(User_.userName),"john"));
>
>        User userJohn =3D em.createQuery(cq).getSingleResult();  // if i w=
ant
> this work i have to do User userJohn =3D
> SerializationUtils.clone(em.createQuery(cq).getSingleResult());  [1*]
>
>
>        //i will create a list of role just for try to set any role the
> userJohn
>       List<Role> roleList =3D new ArrayList<Role>(2);
>       roleList.add(new Role(1,'ADMIN'); //creating and adding role 1
>       roleList.add(new Role(2,'DEVELOPER');//creating and adding role 2
>
>      //setting the list of roles created to the user, as you can see the
> list has 2 values but the value roles of userJohn always is set to null, =
my
> setters and getters are correct
>      userJohn.setRoles(roleList);
>
>      return userJohn;
>   }
>
> }
>
> *** MANAGED BEAN ****
>
> @Named
> public class MyBean implements Serializable{
>
>  @EJB
>  private MyEJB ejb;
>
>  public void anyMethod(){
>    User user =3D ejb.getUserWithRoles();
>     user.getRoles(); //<---- HERE THE LIST IS ALWAYS NULL but if i use
> clone in the ejb method (see 1*) i can get the corrected values.
>
>  }
>
>
> }
>
> I know i can get the values fetching but im trying to not do it
>



--=20
-------------------------------------------------------------------
*SCJA. Jos=E9 Luis Cetina*
-------------------------------------------------------------------

--001a11c233ea97979a04e9096a94--