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From "Howard W. Smith, Jr." <smithh032...@gmail.com>
Subject Re: Entity cant be refreshed with new list values
Date Sat, 19 Oct 2013 14:29:46 GMT
so isEmpty() and size() is a hack and not recommended as touching in
standard EJBs?



On Sat, Oct 19, 2013 at 10:23 AM, Romain Manni-Bucau
<rmannibucau@gmail.com>wrote:

> IsEmpty or size hack is not portablr
> Le 19 oct. 2013 15:04, "Howard W. Smith, Jr." <smithh032772@gmail.com> a
> écrit :
>
> > I agree. I only do/use JPA inside of @EJB's. I learned to do that by
> using
> > NetBeans, since they generate entire web app from your database.
> >
> > but i need to 'touch' all related List/Collections inside of the 1st @EJB
> > that retrieves the @Entity and returns to other layer of app. what i am
> > currently doing is the following:
> >
> > 1. Orders order = (@EJB) facade.getOrder();
> >
> > 2. List<Origins> origins = (@EJB)
> > originFacade.getListOfOriginsForOrder(order.orderId)
> >
> > 3. order.setOrigins(new ArrayList<>(origins));
> >
> > yes, it works, but I think you (and Mark) are telling me what I learned
> in
> > this thread... populate Orders.origins inside of OrdersFacade.getOrder()
> > via isEmpty() or size(). that might be a bit more efficient, but is this
> > the only way to 'touch' all the List/collections related to @Entity
> > (Orders) ?
> >
> > i guess i don't like the look/requirement that I have to do something
> like
> > this below inside @EJB
> >
> > if (orders.getOrigins() != null && !orders.getOrigins().isEmpty()) {
> >   // this is just to touch origins, now go on to the next IF block
> > }
> >
> > if (orders.getDestinations() != null &&
> > !orders.getDestinations().isEmpty()) {
> >   // this is just to touch destinations, now go on to the next IF block
> > }
> >
> > ...
> >
> >
> > On Sat, Oct 19, 2013 at 8:49 AM, Romain Manni-Bucau
> > <rmannibucau@gmail.com>wrote:
> >
> > > More i work on apps more i think jpa should be hidden of business
> > > code...just my opinion. Technically both works
> > >
> >
>

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