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From José Luis Cetina <maxtorz...@gmail.com>
Subject Re: AW: Re: Entity cant be refreshed with new list values
Date Mon, 21 Oct 2013 20:16:05 GMT
Then this is a openjpa bug?


2013/10/20 Romain Manni-Bucau <rmannibucau@gmail.com>

> I got it with 2.2. Didnt retry with 2.3. List were a big issue for me for
> my simple examples :(
> Le 20 oct. 2013 22:44, "Mark Struberg" <struberg@yahoo.de> a écrit :
>
> >
> > definitly wrong. works fine. just no lazy loading.
> >
> > what enhancement  r u using?
> >
> >
> >
> > ------------------------------
> > Romain Manni-Bucau schrieb am So., 20. Okt 2013 21:51 MESZ:
> >
> > >Unmanaged entities are almost read only
> > >Le 20 oct. 2013 21:48, "José Luis Cetina" <maxtorzito@gmail.com> a
> écrit
> > :
> > >
> > >> Whats is not supported by openjpa?
> > >> El 20/10/2013 14:22, "Romain Manni-Bucau" <rmannibucau@gmail.com>
> > >> escribió:
> > >>
> > >> > Openjpa clearly doesnt support today...and no Mark it can or not
> work
> > by
> > >> > spec...
> > >> > Le 20 oct. 2013 18:04, "José Luis Cetina" <maxtorzito@gmail.com>
a
> > >> écrit :
> > >> >
> > >> > > Responses inline.
> > >> > >
> > >> > > El 20/10/2013 06:51, "Mark Struberg" <struberg@yahoo.de>
> escribió:
> > >> > > >
> > >> > > > Romain, that's nowhere in the spec. Thus it must work. Really!
> > >> > >
> > >> > > If this is true, what im doing wrong? Or this is openjpa or tomee
> > >> issue?
> > >> > >
> > >> > > >
> > >> > > > The only thing which is specified to be immutable are lists
> > returned
> > >> by
> > >> > > query.getResultList.
> > >> > > > That's the reason why you should not back a sortable h:dataTable
> > by a
> > >> > > list you get from JPA directly.
> > >> > > > All other stuff is perfectly mutable.
> > >> > > >
> > >> > > > LieGrue,
> > >> > > > strub
> > >> > > >
> > >> > > >
> > >> > > >
> > >> > > >
> > >> > > > >________________________________
> > >> > > > > From: Romain Manni-Bucau <rmannibucau@gmail.com>
> > >> > > > >To: users@tomee.apache.org
> > >> > > > >Sent: Sunday, 20 October 2013, 10:00
> > >> > > > >Subject: Re: Entity cant be refreshed with new list
values
> > >> > > > >
> > >> > > > >
> > >> > > > >Not really. An entity handles a state which can prevent
it.
> > Nothing
> > >> > > > >mandates it to work
> > >> > > > >
> > >> > > > >Le 20 oct. 2013 09:50, "José Luis Cetina" <
> maxtorzito@gmail.com>
> > a
> > >> > > écrit
> > >> > > :
> > >> > > > >
> > >> > > > > What about using a detached entity?? The detached entity
will
> > work
> > >> > > like a
> > >> > > > > DTO?
> > >> > > > >
> > >> > > > > From Real World Java EE Patterns (Adam Biem) 2009
> > >> > > > > Problem
> > >> > > > > The origin problem statement was: “You want to transfer
> multiple
> > >> > data
> > >> > > > > elements over a tier”
> > >> > > > > (
> > >> > > > >
> > >> > > > >
> > >> > >
> > >> > >
> > >> >
> > >>
> >
> http://java.sun.com/blueprints/corej2eepatterns/Patterns/TransferObject.html
> > >> > > > > ).
> > >> > > > > This particular problem was elegantly solved in Java
EE 5 with
> > >> > > detachment
> > >> > > > > of persistent entities. There is
> > >> > > > > no need for the introduction of another class just
for
> > >> transferring
> > >> > > the
> > >> > > > > entities data. JPA entities can
> > >> > > > > implement a java.io.Serializable interface and be transferred
> > >> > between
> > >> > > > > tiers, even remote ones.
> > >> > > > > CMP 2.x entities weren’t Serializable, the developer
was
> forced
> > to
> > >> > > copy
> > >> > > > > their states to a remotely
> > >> > > > > transferable structure—the Transfer Object.
> > >> > > > >
> > >> > > > >
> > >> > > > >
> > >> > > > > 2013/10/19 Howard W. Smith, Jr. <smithh032772@gmail.com>
> > >> > > > >
> > >> > > > > > responses below...
> > >> > > > > >
> > >> > > > > > On Sat, Oct 19, 2013 at 3:46 PM, Mark Struberg
<
> > >> struberg@yahoo.de
> > >> > >
> > >> > > > > wrote:
> > >> > > > > >
> > >> > > > > > > be careful with immediate=true. You get all
sorts of nasty
> > >> side
> > >> > > > > effects.
> > >> > > > > > >
> > >> > > > > > > see page 92 in
> > >> > > > > > >
> > >> > > > > >
> > >> > > > >
> > >> > >
> > >> > >
> > >> >
> > >>
> >
> http://people.apache.org/~struberg/eesummit2013/Java%20EE%20Summit%20-%20pitfalls%20in%20EE.pdf
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > I definitely agree and understand about immediate=true,
and
> > >> guess
> > >> > > what, i
> > >> > > > > > found it very useful to disable validation as
instructed on
> > page
> > >> > 92
> > >> > > of
> > >> > > > > the
> > >> > > > > > PDF file.
> > >> > > > > >
> > >> > > > > > clarification of my use/understanding:
> > >> > > > > >
> > >> > > > > > i am 'not' using immediate=true, when i user is
to select a
> > row
> > >> on
> > >> > > > > > datatable, and then click commandbutton/link/menuitem,
which
> > >> does
> > >> > a
> > >> > > POST
> > >> > > > > of
> > >> > > > > > the selected row on the datatable, and bean uses
the
> selected
> > >> row
> > >> > to
> > >> > > > > > prepare the UI for the next view that is 'rendered'
via
> > >> > > > > > ui:include=#{bean.page}. see below and keep reading,
please.
> > >> > > > > >
> > >> > > > > >     <p:menuitem value="Add" icon="ui-icon
> ui-icon-circle-plus"
> > >> > > > > >
> > >> > > > > >
> > actionListener="#{pf_pointOfContactController.prepareCreate()}"
> > >> > > > > >
> > >> > >  update="#{pf_pointOfContactController.getAjaxUpdate()}"/>
> > >> > > > > >     <p:menuitem value="Edit" icon="ui-icon
ui-icon-pencil"
> > >> > > > > >
> > >> > > > > >
> actionListener="#{pf_pointOfContactController.prepareEdit()}"
> > >> > > > > >
> > >> > >  update="#{pf_pointOfContactController.getAjaxUpdate()}"/>
> > >> > > > > >     <p:menuitem value="View" icon="ui-icon-folder-open"
> > >> > > > > >
> > >> > > > > >
> actionListener="#{pf_pointOfContactController.prepareView()}"
> > >> > > > > >
> > >> > >  update="#{pf_pointOfContactController.getAjaxUpdate()}"/>
> > >> > > > > >     <p:separator/>
> > >> > > > > >     <p:menuitem value="Copy to Ordered By"
icon="ui-icon
> > >> > > ui-icon-newwin"
> > >> > > > > >
> > >> > > > > >
> > >> actionListener="#{pf_pointOfContactController.copySelectedRows()}"
> > >> > > > > >
> > >> > >  update="#{pf_pointOfContactController.getAjaxUpdate()}"/>
> > >> > > > > >     <p:menuitem value="Delete" icon="ui-icon
ui-icon-trash"
> > >> > > > > >
> > >> > > > > >
> > >> > > > >
> > >> > >
> > >> >
> > >>
> >
> actionListener="#{pf_pointOfContactController.confirmDeleteSelectedRows()}"
> > >> > > > > >
> > >> > >  update="#{pf_pointOfContactController.getAjaxUpdate()}"/>
> > >> > > > > >
> > >> > > > > > but, for a readonly page that has commandbutton/links
to
> > render
> > >> a
> > >> > > new
> > >> > > > > view,
> > >> > > > > > based on the current @Entity that is held in the
JSF
> > >> > controller/bean
> > >> > > > > class,
> > >> > > > > > i use immediate=true without issue and I think
it fits/meets
> > the
> > >> > > > > > occasion/requirement, because there is no need
to do
> > validation
> > >> > > phase or
> > >> > > > > > update model values. see below. :)
> > >> > > > > >
> > >> > > > > >     <p:commandButton value="Browse" icon="ui-icon-search"
> > >> > > > > immediate="true"
> > >> > > > > > update="#{pf_pointOfContactController.getAjaxUpdate()}"
> > >> > > > > >
> > >> > > > > >
> >  actionListener="#{pf_pointOfContactController.prepareList()}"/>
> > >> > > > > >     <p:commandButton value="Delete" icon="ui-icon
> > ui-icon-trash"
> > >> > > > > > immediate="true"
> > >> > > update="#{pf_pointOfContactController.getAjaxUpdate()}"
> > >> > > > > >
> > >> > > > > >
> > >>  actionListener="#{pf_pointOfContactController.confirmDelete()}"/>
> > >> > > > > >     <p:commandButton value="Edit" icon="ui-icon
> > ui-icon-pencil"
> > >> > > > > > immediate="true"
> > >> > > update="#{pf_pointOfContactController.getAjaxUpdate()}"
> > >> > > > > >
> > >> > > > > >
> >  actionListener="#{pf_pointOfContactController.prepareEdit()}"/>
> > >> > > > > >
> > >> > > > >
> > >> > > > >
> > >> > > > >
> > >> > > > > --
> > >> > > > >
> > >> -------------------------------------------------------------------
> > >> > > > > *SCJA. José Luis Cetina*
> > >> > > > >
> > >> -------------------------------------------------------------------
> > >> > > > >
> > >> > > > >
> > >> > > > >
> > >> > >
> > >> >
> > >>
> >
> >
>



-- 
-------------------------------------------------------------------
*SCJA. José Luis Cetina*
-------------------------------------------------------------------

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