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Groups > comp.lang.java.programmer > #19551
| From | Gene Wirchenko <genew@ocis.net> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: How to store and represent 1 objects relationship to other objects |
| Date | 2012-10-28 20:47 -0700 |
| Organization | A noiseless patient Spider |
| Message-ID | <p1vr88dc7f5g1roonesmrvhvnrjlpgdchj@4ax.com> (permalink) |
| References | <23786bb4-22cc-4711-a172-8e5c7ce5375e@googlegroups.com> <k6etkf$ufg$1@dont-email.me> <7ae71496-be19-497a-b856-7333d3b4adf7@googlegroups.com> |
On Fri, 26 Oct 2012 14:51:49 -0700 (PDT), Lew <lewbloch@gmail.com>
wrote:
[snip]
>If you further wish to guarantee that no 'LineItem' appears more than once, you'd likely use a 'Set'
>instead of a 'List'. Unfortunately the JPA spec doesn't seem to allow 'SortedSet', but it seems that
>the '@OrderBy' annotation hacks around that limitation.
Sets (in the mathematical sense) do not have order. If you want
to have an order, use a list.
Sincerely,
Gene Wirchenko
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How to store and represent 1 objects relationship to other objects pat.trainor@gmail.com - 2012-10-26 11:40 -0700
Re: How to store and represent 1 objects relationship to other objects Lew <lewbloch@gmail.com> - 2012-10-26 12:23 -0700
Re: How to store and represent 1 objects relationship to other objects Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-10-26 22:59 +0200
Re: How to store and represent 1 objects relationship to other objects Lew <lewbloch@gmail.com> - 2012-10-26 14:51 -0700
Re: How to store and represent 1 objects relationship to other objects Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-10-27 00:48 +0200
Re: How to store and represent 1 objects relationship to other objects Lew <lewbloch@gmail.com> - 2012-10-26 16:07 -0700
Re: How to store and represent 1 objects relationship to other objects Gene Wirchenko <genew@ocis.net> - 2012-10-28 20:47 -0700
Re: How to store and represent 1 objects relationship to other objects David Lamb <dalamb@cs.queensu.ca> - 2012-10-29 10:12 -0400
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