springframework-developer — Spring Framework developers list

Re: [Springframework-developer] Synchronization policy in the Springcode base

[Juergen H. <jue...@in...>]

As far as I gathered when browing through that thread, the situation isn't
something to worry about: As pointed out, Spring publishes its singleton
beans safely. Peter states that this is only guaranteed on JDK 1.5+, but as
Matthias points out, thread-safe publication via a synchronized Map works
fine on all mainstream JVMs back until 1.3. If it wouldn't, no Servlet
container or any other pre-JDK-1.5 container machinery would be able to work
correctly (as far as I can tell). Remember that this would not only affect
Spring's container; it would affect any other kind of container that allows
for multi-threaded access as well.

As for the point that singleton beans should internally care for
thread-safety of their configuration fields, since they might run outside of
Spring: I see the point, but I don't think it is really relevant in
practice. Any such beans using setter injection have to be safely published
(after creation has finished) by whoever creates them, be it a container or
custom startup code. And of course the container itself (e.g. a Spring
ApplicationContext reference) has to be safely published as well (e.g. as
ServletContext attribute), as pointed out by Matthias). Which is provided by
all of Spring's out-of-the-box environments and reasonably easy to achieve
in custom startup code in any kind of environment.

I do appreciate the idea of marking configuration fields with a special
annotation in order to improve readability, making it clear that they are
'final once configured' (to anyone looking at the code), unless they are
clearly documented as supporting 'hot' changes (e.g. through JMX), in which
case (and only in this case) access to them would have to be synchronized.
We should document these basic rules more clearly, despite them being
general Setter Injection rules, not really Spring-specific rules.

As indicated above, I don't think that there's much point in making
configuration fields volatile just to allow for use in a non-locked
environment. After all, publishing bean instances early, in potentially
half-configured state, is a bad idea in any case, no matter whether the
fields would be correctly visible during such a phase. A bean instance does
need to go through its entire creation process (including auto-proxying etc)
before it may be published; another basic rule that may need more explicit
documentation.

Unfortunately, I don't have much further time at present, so I probably
won't participate in that thread directly. Feel free to quote me if you like
:-)

Juergen


-----Original Message-----
From: spr...@li...
[mailto:spr...@li...] On Behalf
Of roger holbrook
Sent: Thursday, February 22, 2007 7:53 PM
To: spr...@li...
Subject: [Springframework-developer] Synchronization policy in the
Springcode base


FYI: Rod and Juergen

There's an interesting thread over on the 166-concurrency list:

http://thread.gmane.org/gmane.comp.java.jsr.166-concurrency/3615/focus=3636

This includes a discussion of synchronization policy in the spring code
base, with contributions from several of the authors of Java Concurrency in
Practice.

In support of Springs good name, & what sounds like a bunch of would be
spring advocates, perhaps one of you might like to respond to the above post
?

Roger











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[Springframework-developer] Synchronization policy in the Spring code base

[roger h. <apo...@sn...>]

FYI: Rod and Juergen

There's an interesting thread over on the 166-concurrency list:

http://thread.gmane.org/gmane.comp.java.jsr.166-concurrency/3615/focus=3636

This includes a discussion of synchronization policy in the spring
code base, with contributions from several of the authors of Java
Concurrency in Practice.

In support of Springs good name, & what sounds like a bunch of would be
spring advocates, perhaps one of you might like to respond to the above post
?

Roger

Re: [Springframework-developer] FACTORY_BEAN_PREFIX

[Rod J. <ro...@in...>]

I agree. The ampersand (which Juergen didn't much like at the time back 
in early 2003) probably wasn't one of my better decisions :-)

Juergen Hoeller wrote:
> I agree that "&" is not that great a choice given XML as primary 
> configuration format, so I guess supporting an alternative marker for 
> nicer references in XML would be worthwhile.
>  
> Syntax suggestions? Other opinions?
>  
> Juergen
>  
> 
> ------------------------------------------------------------------------
> *From:* spr...@li... 
> [mailto:spr...@li...] *On 
> Behalf Of *nicolas de loof
> *Sent:* Tuesday, February 13, 2007 9:16 AM
> *To:* spr...@li...
> *Subject:* [Springframework-developer] FACTORY_BEAN_PREFIX
> 
> Hello,
> 
> I'd like to suggest to define an alternative value for 
> BeanFactory.FACTORY_BEAN_PREFIX as "&" is the XML entity prefix.
> 
> To use this prefix in a spring XML context it is required to setup 
> something like :
> 
>     <property name="" ref="&amp;ID" />
> 
> Doesn't look very nice.
> 
> Having a second prefix supported by spring XML-based applicationcontext 
> would make this cleaner.
> 
> Nico.
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
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> 
> 
> ------------------------------------------------------------------------
> 
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Re: [Springframework-developer] FACTORY_BEAN_PREFIX

[Christopher G. S. I. <cg...@ld...>]

Colin Yates wrote:
> What about the C dereferencing symbol "->"
> 
> Hmm, actually no.  But at least I have set a very low base mark, now
> others might feel happier making suggestions ;)
> 
> On 22/02/07, *Juergen Hoeller* <jue...@in...
> <mailto:jue...@in...>> wrote:
> 
>     I agree that "&" is not that great a choice given XML as primary
>     configuration format, so I guess supporting an alternative marker
>     for nicer references in XML would be worthwhile.
>      
>     Syntax suggestions? Other opinions?
>      
>     Juergen
>      

Why not a separate tag attribute?  That would be nice and declarative.

-- 
Christopher G. Stach II

Re: [Springframework-developer] FACTORY_BEAN_PREFIX

[Colin Y. <col...@gm...>]

What about the C dereferencing symbol "->"

Hmm, actually no.  But at least I have set a very low base mark, now others
might feel happier making suggestions ;)

On 22/02/07, Juergen Hoeller <jue...@in...> wrote:
>
>  I agree that "&" is not that great a choice given XML as primary
> configuration format, so I guess supporting an alternative marker for nicer
> references in XML would be worthwhile.
>
> Syntax suggestions? Other opinions?
>
> Juergen
>
>
>  ------------------------------
> *From:* spr...@li... [mailto:
> spr...@li...] *On Behalf Of *nicolas
> de loof
> *Sent:* Tuesday, February 13, 2007 9:16 AM
> *To:* spr...@li...
> *Subject:* [Springframework-developer] FACTORY_BEAN_PREFIX
>
> Hello,
>
> I'd like to suggest to define an alternative value for
> BeanFactory.FACTORY_BEAN_PREFIX as "&" is the XML entity prefix.
>
> To use this prefix in a spring XML context it is required to setup
> something like :
>
>     <property name="" ref="&amp;ID" />
>
> Doesn't look very nice.
>
> Having a second prefix supported by spring XML-based applicationcontext
> would make this cleaner.
>
> Nico.
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share
> your
> opinions on IT & business topics through brief surveys-and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer
>
>

[Springframework-developer] i am getting error when i run a sample spring program from command line

[Naren2007 <mar...@ya...>]

hi,

   i am getting error when i run a sample spring program from command line
like the following one. my question what should be in the application
context file. is it due to path problem for interface or implementaion
classes

rg.springframework.beans.factory.BeanDefinitionStoreException: Error
registering bean with name 'Hellow' defined in class path resource
[applicationContext.xml]: Class that bean class [\spring\HellowImpl] depends
on not found; nested exception is java.lang.NoClassDefFoundError:
\spring\HellowImpl (wrong name: spring/HellowImpl)


by

sad
-- 
View this message in context: http://www.nabble.com/i-am-getting-error-when-i-run-a-sample-spring-program-from-command-line-tf3272277.html#a9098325
Sent from the springframework-developer mailing list archive at Nabble.com.

Re: [Springframework-developer] FACTORY_BEAN_PREFIX

[Juergen H. <jue...@in...>]

I agree that "&" is not that great a choice given XML as primary
configuration format, so I guess supporting an alternative marker for nicer
references in XML would be worthwhile.
 
Syntax suggestions? Other opinions?
 
Juergen
 

  _____  

From: spr...@li...
[mailto:spr...@li...] On Behalf
Of nicolas de loof
Sent: Tuesday, February 13, 2007 9:16 AM
To: spr...@li...
Subject: [Springframework-developer] FACTORY_BEAN_PREFIX


Hello,

I'd like to suggest to define an alternative value for
BeanFactory.FACTORY_BEAN_PREFIX as "&" is the XML entity prefix.

To use this prefix in a spring XML context it is required to setup something
like : 

    <property name="" ref="&amp;ID" />

Doesn't look very nice.

Having a second prefix supported by spring XML-based applicationcontext
would make this cleaner.

Nico.

[Springframework-developer] Spring and JUnit4

[svpino <sv...@gm...>]

I was frustrating googling about using Spring with JUnit4, so one
month ago I began a project named gienah-testing. This project has the
goal to maintain a set of classes to test spring code using JUnit 4.

The description of the project is the following:

"Spring has some classes to test projects using previous versions of
JUnit framework (see org.springframework.test package). The lastest
version of JUnit becomes completely different making impossible the
use of these classes. The gienah-testing project reintroduce the lost
spring functionality and offers new behaviour to makes the life of
spring testers a little happier".

You can see project features and description in:
http://groups.google.com/group/gienah-testing/web/project-description

The source code and downloads are hosted in:
http://code.google.com/p/gienah-testing/

A 5 minutes tutorial in:
http://groups.google.com/group/gienah-testing/web/project-5-minutes-t...

The main goal is to receive the community feedback.

Thanks for your attention

Santiago L. Valdarrama

[Springframework-developer] Spring build.113 SUCCEEDED

[<bu...@in...>]

Snapshot has been uploaded to http://www.springframework.org/snapshots
    			
The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

Re: [Springframework-developer] [Repost] Spring modules : where is the "jakarta-commons" xdoc in CVS ?

[nicolas de l. <nic...@gm...>]

I've attached a configuration.xml to MOD-291.

When I run "ant doc" from springmodules/docs, the generated single HTML
doesn't have the same content as
https://springmodules.dev.java.net/docs/reference/0.7/html_single/<https://springmodules.dev.java.net/docs/reference/0.7>

For example,
chapter2 "Ant integration" is not included in my locale-generated doc
chapter 4 : "commons-support" does not exist
etc...



2007/2/19, Sergio Bossa <ser...@gm...>:
>
> Hi Nicolas,
>
> sorry for the very late response.
>
> > That is what I expected to do, but I can't find how the current doc (
> > https://springmodules.dev.java.net/docs/reference/0.7) is
> > generated. Using the ant script from springmodules/doc doesn't generate
> the
> > same documentation.
>
> What do you mean? What do you get?
> Have you tried following the readme.txt file into the main docs directory?
>
> Cheers,
>
> Sergio B.
>
> --
> Sergio Bossa
> Software analyst and developer, blogger and Open Source enthusiast.
> Blogging on: http://sbtourist.blogspot.com
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share
> your
> opinions on IT & business topics through brief surveys-and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer
>

Re: [Springframework-developer] [Repost] Spring modules : where is the "jakarta-commons" xdoc in CVS ?

[Sergio B. <ser...@gm...>]

Hi Nicolas,

sorry for the very late response.

> That is what I expected to do, but I can't find how the current doc (
> https://springmodules.dev.java.net/docs/reference/0.7) is
> generated. Using the ant script from springmodules/doc doesn't generate the
> same documentation.

What do you mean? What do you get?
Have you tried following the readme.txt file into the main docs directory?

Cheers,

Sergio B.

-- 
Sergio Bossa
Software analyst and developer, blogger and Open Source enthusiast.
Blogging on: http://sbtourist.blogspot.com

[Springframework-developer] Spring build.112 SUCCEEDED

[<bu...@in...>]

Snapshot has been uploaded to http://www.springframework.org/snapshots
    			
The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

[Springframework-developer] Another

[Dmitriy K. <dmi...@gm...>]

another test

[Springframework-developer] test from new email

[Dmitriy K. <dmi...@gm...>]

test

[Springframework-developer] Spring build.111 SUCCEEDED

[<bu...@in...>]

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The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

[Springframework-developer] Spring build.110 SUCCEEDED

[<bu...@in...>]

Snapshot has been uploaded to http://www.springframework.org/snapshots
    			
The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

[Springframework-developer] Spring build.109 SUCCEEDED

[<bu...@in...>]

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The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

[Springframework-developer] Spring build.108 SUCCEEDED

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The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

[Springframework-developer] Spring build.107 SUCCEEDED

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Re: [Springframework-developer] [Repost] Spring modules : where is the "jakarta-commons" xdoc in CVS ?

[nicolas de l. <nic...@gm...>]

I've created http://opensource.atlassian.com/projects/spring/browse/MOD-291and
attached some doc.

2007/2/13, nicolas de loof <nic...@gm...>:
>
> That is what I expected to do, but I can't find how the current doc (https://springmodules.dev.java.net/docs/reference/0.7<https://springmodules.dev.java.net/docs/reference/0.7/html_single/>)
> is generated. Using the ant script from springmodules/doc doesn't generate
> the same documentation.
>
>
>
> 2007/2/13, Sergio Bossa < ser...@gm...>:
> >
> > On 2/13/07, nicolas de loof < nic...@gm...> wrote:
> >
> > > I'd like to contribute spring-module doc about using the
> > > CommonsConfigurationFactoryBean to get a CompositeConfiguration bean
> > (in
> > > place of Properties).
> >
> > I think you should open a Spring Modules Jira issue about that and
> > attach your contribution.
> >
> > Thank you very much,
> > Cheers,
> >
> > Sergio B.
> >
> > --
> > Sergio Bossa
> > Software analyst and developer, blogger and Open Source enthusiast.
> > Blogging on: http://sbtourist.blogspot.com
> >
> >
> > -------------------------------------------------------------------------
> > Using Tomcat but need to do more? Need to support web services,
> > security?
> > Get stuff done quickly with pre-integrated technology to make your job
> > easier.
> > Download IBM WebSphere Application Server v.1.0.1 based on Apache
> > Geronimo
> > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> > _______________________________________________
> > Springframework-developer mailing list
> > Spr...@li...
> > https://lists.sourceforge.net/lists/listinfo/springframework-developer
> >
>
>

[Springframework-developer] Spring build.106 SUCCEEDED

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[Springframework-developer] Spring build.105 SUCCEEDED

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[Springframework-developer] Spring build.104 SUCCEEDED

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The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

[Springframework-developer] Spring build.103 SUCCEEDED

[<bu...@in...>]

Snapshot has been uploaded to http://www.springframework.org/snapshots
    			
The list of modifications for this build can be found in the build log (http://static.springframework.org/spring/build/index.html).    			
			

Re: [Springframework-developer] [Repost] Spring modules : where is the "jakarta-commons" xdoc in CVS ?

[nicolas de l. <nic...@gm...>]

That is what I expected to do, but I can't find how the current doc (
https://springmodules.dev.java.net/docs/reference/0.7<https://springmodules.dev.java.net/docs/reference/0.7/html_single/>)
is generated. Using the ant script from springmodules/doc doesn't generate
the same documentation.



2007/2/13, Sergio Bossa <ser...@gm...>:
>
> On 2/13/07, nicolas de loof <nic...@gm...> wrote:
>
> > I'd like to contribute spring-module doc about using the
> > CommonsConfigurationFactoryBean to get a CompositeConfiguration bean (in
> > place of Properties).
>
> I think you should open a Spring Modules Jira issue about that and
> attach your contribution.
>
> Thank you very much,
> Cheers,
>
> Sergio B.
>
> --
> Sergio Bossa
> Software analyst and developer, blogger and Open Source enthusiast.
> Blogging on: http://sbtourist.blogspot.com
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job
> easier.
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer
>