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Groups > comp.lang.java.programmer > #12317
| Date | 2012-02-25 09:31 -0500 |
|---|---|
| From | Arne Vajhøj <arne@vajhoej.dk> |
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Aspect questions? |
| References | <XnsA0039B9FFFA32jpnasty@94.75.214.39> <ji931u$34e$1@dont-email.me> <4f482fbd$0$282$14726298@news.sunsite.dk> <ji9pdl$q2i$1@news.albasani.net> |
| Message-ID | <4f48f0c3$0$281$14726298@news.sunsite.dk> (permalink) |
| Organization | SunSITE.dk - Supporting Open source |
On 2/24/2012 11:52 PM, Lew wrote:
> On 02/24/2012 04:47 PM, Arne Vajhøj wrote:
>> On 2/24/2012 5:30 PM, markspace wrote:
>>> On 2/24/2012 12:10 PM, Novice wrote:
>>>> I don't recall ever seeing anyone ask aspect-oriented questions but I
>>>> certainly don't read every thread or even every subject line so I could
>>>> have missed some....
>>>
>>> I'm not an expert on Aspects or CDI, but I feel that AoP has largely
>>> been replaced in the Java world by CDI (Context and Dependency
>>> Injection). Which is perhaps why you haven't seen much discussion of
>>> AoP.
>>
>> I don't agree with that. I see very little overlap between what one
>> would use CDI for and what one would use AspectJ for.
>>
>>> AoP is probably important in some fields of research and with other
>>> languages, or with specialized systems. But most of us here are
>>> generalists, and AoP doesn't seem to be used much, if at all, in general
>>> Java programming.
>>
>> AOP is not as hot as it was 5 years ago.
>>
>> But it is used in the Java world.
>>
>> But mostly in frameworks and not so much in business code.
>>
>> I believe several well known Java frameworks/apps uses
>> AspectJ including Spring and JBoss.
>
> It is as you say. There are niches where bytecode weaving does wonders.
> JPA is another such. But there's a Law of Demeter thing going on. When
> you use JPA, or Spring, or JBoss, you don't normally think about the
> bytecode rewrites; they exist in a dark layer hidden by the framework.
>
> In a manner of speaking CDI and annotations generally are bytecode
> weavers, but that isn't exactly right. Let's say they are cousins, in
> the same tribe as reflection.
Dynamic weaving may be in the same tribe as annotations/DI/reflection,
but static weaving is more in the tribe of another language.
> Like all in that tribe, they share
> attributes of secrecy, complication and the need to operate in isolation
> from more conventional system components. In return they give you great
> magic.
>
> In a well-designed framework those difficulties are covered for you. If
> you're a framework developer, more power to you. You'll need it for the
> great responsibility.
The problems with AOP like AspectJ is that:
1) it is a more complex language than pure Java
2) it can be very difficult to read the code, because
the original Java class source code has no references
to the aspects weaved in, so it can be a problem finding
those
And the consequence of that combined with the skill sets of
the average Java business code developer is that AOP has
somewhat been delegated to frameworks.
But that was not the original intention with AOP. It was
expected to be used for ordinary business code.
Arne
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Aspect questions? Novice <novice@example..com> - 2012-02-24 20:10 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-24 13:05 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 05:47 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-24 23:40 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 17:02 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 12:08 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 22:12 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 14:27 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 23:29 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 18:33 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 14:38 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:49 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:53 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 18:17 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 16:01 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 17:22 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 12:25 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 21:08 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:33 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 17:05 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 20:18 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 21:29 -0800
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-27 05:44 -0400
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:37 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-28 00:04 -0800
Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-02-28 01:39 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 14:54 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-28 17:24 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 04:53 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:08 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 05:12 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 21:38 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 17:27 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 12:22 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 22:50 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 17:24 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:00 +0000
Re: Aspect questions? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-02-29 09:14 -0800
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-29 09:55 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 21:31 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-29 23:06 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 04:33 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-03-04 23:00 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-04 17:07 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-03-05 15:33 +0000
JavaDoc linking (Was: Aspect questions?) Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-03-05 08:38 -0800
Re: JavaDoc linking (Was: Aspect questions?) Novice <novice@example..com> - 2012-03-05 17:40 +0000
Re: JavaDoc linking (Was: Aspect questions?) Patricia Shanahan <pats@acm.org> - 2012-03-05 21:25 -0800
Re: JavaDoc linking (Was: Aspect questions?) Arne Vajhøj <arne@vajhoej.dk> - 2012-03-06 17:23 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-05 23:45 -0800
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-06 06:03 -0400
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-06 21:05 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:11 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:09 -0500
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-26 23:43 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 05:20 +0000
Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-02-26 21:32 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 17:36 +0000
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 13:18 -0500
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 14:05 -0500
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 14:33 -0500
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 14:53 -0500
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 15:16 -0500
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-27 17:57 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 22:59 +0000
Re: Aspect questions? Jeff Higgins <jeff@invalid.invalid> - 2012-02-28 05:50 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:03 +0000
Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-02-27 13:17 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 22:55 +0000
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-27 05:58 -0400
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 18:14 +0000
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-28 00:12 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-02-28 02:04 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:22 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:11 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:14 -0500
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-28 23:09 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:25 +0000
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-01 00:22 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-03-01 01:44 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-29 23:24 -0800
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-01 21:19 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 01:52 +0000
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-03 01:39 +0000
Re: Aspect questions? Novice <novice@example..com> - 2012-03-05 15:38 +0000
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-03-05 22:50 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-05 23:46 -0800
Re: Aspect questions? Patricia Shanahan <pats@acm.org> - 2012-03-06 08:14 -0800
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-06 21:23 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-08 20:10 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 01:49 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-01 22:38 -0800
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-02 06:05 -0400
Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 14:25 +0000
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-03-02 18:10 -0400
Re: Aspect questions? Novice <novice@example..com> - 2012-03-02 14:12 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-02 08:57 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-03-05 15:57 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-05 23:48 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-03-07 20:33 +0000
Re: Aspect questions? Lew <lewbloch@gmail.com> - 2012-03-07 13:09 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:20 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-03-02 14:28 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:16 -0500
Re: Aspect questions? markspace <-@.> - 2012-02-26 10:10 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 20:52 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 13:48 -0800
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 13:47 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:40 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:36 -0500
Re: Aspect questions? markspace <-@.> - 2012-02-26 16:04 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 19:38 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 17:09 -0800
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-26 20:08 -0400
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 19:43 -0500
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-27 22:03 -0400
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:18 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 13:43 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 01:11 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 21:49 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-27 18:37 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 12:28 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-28 00:55 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-27 17:37 -0800
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 15:57 +0000
Re: Aspect questions? Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-02-28 03:21 -0600
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-28 09:19 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-27 21:12 -0500
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-28 05:59 -0400
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-28 17:27 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-29 16:07 +0000
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-03-02 17:26 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 18:22 -0500
Re: Aspect questions? markspace <-@.> - 2012-02-25 20:22 -0800
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 22:20 -0800
Re: Aspect questions? markspace <-@.> - 2012-02-26 00:04 -0800
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 00:21 -0800
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 00:33 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:43 -0500
Re: Aspect questions? Martin Gregorie <martin@address-in-sig.invalid> - 2012-02-26 11:18 +0000
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-26 11:04 -0400
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-26 10:22 -0400
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 21:04 +0000
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-26 14:01 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 18:46 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 09:50 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-26 10:38 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-26 20:49 +0000
Re: Aspect questions? jlp <jlp@jlp.com> - 2012-02-25 09:47 +0100
Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 17:03 +0000
Re: Aspect questions? jlp <jlp@jlp.com> - 2012-02-25 20:02 +0100
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-25 10:20 -0400
Re: Aspect questions? markspace <-@.> - 2012-02-25 08:18 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 12:04 -0500
Re: Aspect questions? Novice <novice@example..com> - 2012-02-25 17:17 +0000
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-25 18:40 -0400
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 18:18 -0500
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 09:21 -0500
Re: Aspect questions? Roedy Green <see_website@mindprod.com.invalid> - 2012-02-25 14:35 -0800
Re: Aspect questions? markspace <-@.> - 2012-02-24 14:30 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-24 19:47 -0500
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-24 20:52 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-25 09:31 -0500
Re: Aspect questions? Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-02-25 11:05 -0400
Re: Aspect questions? Lew <noone@lewscanon.com> - 2012-02-25 12:20 -0800
Re: Aspect questions? Arne Vajhøj <arne@vajhoej.dk> - 2012-02-24 19:00 -0500
Re: Aspect questions? Tom Anderson <twic@urchin.earth.li> - 2012-02-25 00:22 +0000
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