Re: [Springframework-developer] Retrieve all class path resources with the same name

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Another suggestion...

If we'd like to keep the prefix "classpath:" the same, maybe "all" could
be the default anyway, so "classpath:beans.xml" would load them all, and
"classpath:|beans.xml|" would load only one?

This would not be backwards compatible, but maybe that's acceptable, and
when using ClassPathXmlApplicationContext there would still be a
difference between "beans.xml" (loads one) and "classpath:beans.xml"
(loads all).

But if you're not using a prefix, you know you're relying on the
getResourceByPath provided by the specific ApplicationContext
implementation (and you presumably don't know which one that is), so you
wouldn't expect more than one result...
If you are using a "classpath:" prefix, you know you'll get all results,
except when using the "||" notation, which is probably pretty clear.

Regards,
Tom.

On Fri, 25 Jun 2004 10:43:43 -0400, "Colin Sampaleanu"
<col...@ex...> said:
> No, that wouldn't actually make sense, since * in the resource name=20
> (what comes after the 'classpath:' prefix), means an actual, 'glob'=20
> style wildcard. (which as I meantioned in another email, is not=20
> guaranteed to work, depending on whether the classes are actually on the=
=20
> filesystem or not).
>=20
>=20
> Matt Raible wrote:
>=20
> > classpath:* seems more intuitive to me - where its still using the=20=
=20
> > classpath: prefix
> >
> > On Jun 25, 2004, at 5:50 AM, Dmitriy Kopylenko wrote:
> >
> >> How about "classpath-all:" to be more explicit?
> >>
> >>  Dmitriy.
> >>
> >>  j=FCrgen h=F6ller [werk3AT] wrote:
> >> Any thoughts about the prefix naming? Is "classpath*:" for explictly=
=20=20
> >> wanting all matching classpath resources fine?
> >>
> >> Juergen
> >>
> >>
> >> ________________________________
> >>
> >> Von: spr...@li...  im=20
> >> Auftrag  von j=FCrgen h=F6ller [werk3AT]
> >> Gesendet: Do 24.06.2004 09:56
> >> An: spr...@li...
> >> Betreff: Re: [Springframework-developer] Retrieve all class path=20=20
> >> resources with the same name
> >>
> >>
> >>
> >> Colin,
> >>
> >> You do have a point there. We coul use a prefix like "classpath*:"=20
> >> for  loading all matching resources from the classpath. ("resources:"=
=20
> >> is  too general, IMO: It's about multiple _classpath_ resources.)=20
> >> That  would keep the behavior of "classpath:" in any case, and allow=
=20
> >> to  explicitly specify "I want all matching resources" via=20
> >> "classpath*:".
> >>
> >> Interestingly, a classpath resource string is the only resource=20=20
> >> location accepted by Spring's ResourceLoader that is not unique but=20=
=20
> >> can result in multiple matching files.
> >>
> >> Juergen
> >>
> >>
> >> ________________________________
> >>
> >> Von: spr...@li...  im=20
> >> Auftrag  von Colin Sampaleanu
> >> Gesendet: Do 24.06.2004 06:06
> >> An: spr...@li...
> >> Betreff: Re: [Springframework-developer] Retrieve all class path=20=20
> >> resources with the same name
> >>
> >>
> >>
> >> I've been thinking about this, and was wondering if it's appropriate
> >> that _all_ matching resources are found, all the time, and also if we
> >> should be worried about a backwards incompatible change.
> >>
> >> Before, in ClassPathXmlApplicationContext, the locations
> >>    beans.xml
> >> and
> >>    classpath:beans.xml
> >> would return one resource, regardless of how many there were.
> >>
> >> Now the former still returns one, while the latter returns 1-x.
> >>
> >> Is it a problem that we've made a backwards incompatible change for the
> >> latter form?
> >> Is it a problem that somebody, if they want just one resource, has to
> >> know that they need to use the first form? Additionally to this, this
> >> distinction is possible when something like
> >> ClassPathXmlApplicationContext, but for others that override the=20=20
> >> default
> >> getResourceByPath to default to something else than a classpath
> >> resource,  it's not a possibility.
> >>
> >> I guess somebody could say, if there are multiple resources available
> >> under that name, is it ever appropriate to return just one? I think so,
> >> since after all, even in that case, the classloader resource loading
> >> strategy is well defined and deterministic.
> >>
> >> Since the 'classpath:' prefix is something we made up, why don't we=20=
=20
> >> keep
> >> this for just a single resource, and use something like 'resources:'=
=20=20
> >> (or
> >> whatever) to mean multiple resources?
> >>
> >> Colin
> >>
> >> j=FCrgen h=F6ller [werk3AT] wrote:
> >>
> >>
> >> FYI, I've just refined PathMatchingResourcePatternResolver to be=20
> >> able  to retrieve all class path resources with the same name. It=20
> >> actually  inherits this from the new base class=20=20
> >> ClassPathResourcePatternResolver.
> >>
> >>   http://sourceforge.net/forum/forum.php?=20
> >> thread_id=3D1096825&forum_id=3D250340
> >>
> >> So "classpath:/beans.xml" will load all beans.xml files in classes=20=
=20
> >> directories or JAR files, if passed into=20=20
> >> PathMatchingResourcePatternResolver. Of course, Ant-style file path=20=
=20
> >> patterns like "/WEB-INF/*-context.xml" still work.
> >>
> >> As this is automatically used by "contextConfigLocation" parameters,=
=20=20
> >> this means that we can specify such a URL for a root web application=
=20=20
> >> context, for example to auto-load all beans.xml files contained in=20=
=20
> >> deployed JAR files in WEB-INF\lib (HiveMind-style)!
> >>
> >> Juergen
> >>
> >>
> >> DI J=FCrgen H=F6ller
> >> Senior System Architect
> >> ______________________________________
> >>
> >> werk3ATS - division systementwicklung
> >> werk3AT informations- und mediensysteme
> >>
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> >>
> >> t.  +43 (0) 732 71 65 29 502
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> >>  mailto:jue...@we...
> >>  http://www.werk3at.com
> >> ______________________________________
> >> werk3ATS - WIR ENTWICKELN ERFOLG
> >>
> >>
> >>
> >>
> >>
> >>
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>=20
>=20
>=20
>=20
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