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Groups > comp.lang.java.programmer > #14487
| From | Jan Burse <janburse@fastmail.fm> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Good Fowler article on ORM |
| Date | 2012-05-12 13:27 +0200 |
| Organization | albasani.net |
| Message-ID | <jolhfa$e35$1@news.albasani.net> (permalink) |
| References | (2 earlier) <joihae$oiv$1@news.albasani.net> <jokg12$jce$1@dont-email.me> <jolcd0$3g7$1@news.albasani.net> <joldlk$gv7$1@dont-email.me> <jolgn9$chj$1@news.albasani.net> |
Jan Burse schrieb:
>
> But if you know that youre deployment range will be only
> top-notch JITs you might go into the pain of adding additional
> class to the package for the iterator implementations. This
> would blow up the packgage to 11 classes, counting the
> .class files.
But I doubt this is necessary, since these classes will not
be seen by the client. The client only sees:
- Give me all tupples that match a given pattern
Inside the API this is then translated into:
- Oh the client wants tupples for a given pattern, lets
first find a suitable index.
- Alternative 1:
- Oh this part of the tupple already has a an index,
lets lookup this part of the tupple
- Pick the set found by the lookup
- Alternative 2:
- Oh this part of the tupple could profit from an index,
but there is none yet, lets build an index.
- Lookup this part of the tupple in the new index
- Pick the set found by the lookup
- Oh we have a set now, lets check whether the
set is already suitable.
- Alternative 1:
- The set is already small enough or there are
no more potential sub index.
- Return the set
- Alternative 2:
- The set is still large and there is a potential
sub index.
- Continue use case from start inside the set.
So the involved data structure is something along:
Index = ArrayList<HashMap<IndexAndTupples>>
But this is not visible to the client. The client
will only see:
Tupples = ArrayList<Tupple>
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Good Fowler article on ORM Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-05-10 19:50 -0300
Re: Good Fowler article on ORM Roedy Green <see_website@mindprod.com.invalid> - 2012-05-10 16:52 -0700
Re: Good Fowler article on ORM Arne Vajhøj <arne@vajhoej.dk> - 2012-05-10 20:10 -0400
Re: Good Fowler article on ORM Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-05-11 01:56 -0500
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-11 10:06 +0200
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-11 10:09 +0200
Re: Good Fowler article on ORM David Lamb <dalamb@cs.queensu.ca> - 2012-05-11 21:56 -0400
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 12:01 +0200
Re: Good Fowler article on ORM David Lamb <dalamb@cs.queensu.ca> - 2012-05-12 06:22 -0400
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 13:14 +0200
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 13:27 +0200
Re: Good Fowler article on ORM markspace <-@.> - 2012-05-12 08:15 -0700
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 18:21 +0200
Re: Good Fowler article on ORM markspace <-@.> - 2012-05-12 10:37 -0700
Re: Good Fowler article on ORM Lew <noone@lewscanon.com> - 2012-05-12 12:27 -0700
Re: Dalvik running on the Android device emulator Fredrik Jonson <fredrik@jonson.org> - 2012-05-13 07:21 +0000
Re: Dalvik running on the Android device emulator David Lamb <dalamb@cs.queensu.ca> - 2012-05-13 08:18 -0400
Re: Good Fowler article on ORM Lew <noone@lewscanon.com> - 2012-05-12 12:12 -0700
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 21:53 +0200
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 21:59 +0200
Re: Good Fowler article on ORM Lew <noone@lewscanon.com> - 2012-05-12 13:55 -0700
Re: Good Fowler article on ORM Lew <noone@lewscanon.com> - 2012-05-12 13:59 -0700
Re: Good Fowler article on ORM Jan Burse <janburse@fastmail.fm> - 2012-05-12 23:49 +0200
Re: Good Fowler article on ORM Lew <noone@lewscanon.com> - 2012-05-12 17:14 -0700
Re: Good Fowler article on ORM jb <janburse@fastmail.fm> - 2012-05-13 02:11 -0700
Re: Good Fowler article on ORM Lew <noone@lewscanon.com> - 2012-05-14 22:25 -0700
Re: Good Fowler article on ORM Arne Vajhøj <arne@vajhoej.dk> - 2012-05-20 22:15 -0400
Re: Good Fowler article on ORM Arne Vajhøj <arne@vajhoej.dk> - 2012-05-10 20:03 -0400
Re: Good Fowler article on ORM Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-05-10 18:40 -0700
Re: Good Fowler article on ORM Arne Vajhøj <arne@vajhoej.dk> - 2012-05-10 21:42 -0400
Re: Good Fowler article on ORM Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-05-13 19:40 -0300
Re: Good Fowler article on ORM markspace <-@.> - 2012-05-10 19:17 -0700
Re: Good Fowler article on ORM Lew <lewbloch@gmail.com> - 2012-05-10 16:41 -0700
Re: Good Fowler article on ORM Robert Klemme <shortcutter@googlemail.com> - 2012-05-12 14:33 -0700
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