Yes, I know there are a couple of articles available (JavaWorld, onjava,
DeveloperWork), but to me - a newbie, but still a skilled Java developer - they leave
a lot of questions open.
Examples:
- I can see that "add<property>" methods are called by Castor, but it's not documented
anywhere why they are called, and if other methods could also be called.
- in code in published articles handling many-to-many relations I see things like this:
public void addCategory( Category category )
{
if ( _categories.contains( category ) ) {
_categories.addElement( category ); category.addProduct( this );
}
}
Why is this "contains"-check necessary?
What is needed is documentation that gives SIMPLE, systematic examples on how to use
Castor-JDO:
- one-to-one relations
- one-to-many
- many-to-many
- mandatory/optional
- dependent/not-dependent
- create, read, update, delete of simple objects and linked objects
Not to talk about the complex stuff: caching, lazy loading etc. It really needs
documentation.
I'll start by writing an introductory article to javaboutique.com, and hopefully I'll
be able to make one or two follow-ups, but it'll probably only be possible if I can
get a dialogue going with a skilled JDO-developer.
Who volunteers? You Bruce?
/Keld
Writer for javaboutique.com
----- Original Message -----
From: "Techeira, Vincent X -ND" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, February 19, 2003 5:20 PM
Subject: Re: [castor-dev] Article about Castor-JDO
As I'm sure you're all aware there are two articles already available on Castor-JDO.
These make for excellent references, but one with even more detail would be greatly
appreciated.
As an aside, what are the requirements to become a contributor to the project?
-----Original Message-----
From: Bicking, Dave B243 [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 19, 2003 11:02 AM
To: [EMAIL PROTECTED]
Subject: Re: [castor-dev] Article about Castor-JDO
As a developer who potentially has need of Castor-JDO, I'm watching this
group for information regularly. I'm not currently reading the JDO posts in
detail, because I'm hoping our company will allow us to use XML. I have a
team member reviewing JDO now, and if we have problems with it, I'm
confident the answers can be found here. Our schedule is tight, so I doubt
we will be able to contriubute to fixes, but I'll see what I can do.
I'm extremely interested in seeing a Castor-JDO article. A nice SQL-DB
specific FAQ would be nice too (I'll scan the site for one, it might exist).
We'll probably end up using MS-SQL Server, so our interests will be in that
area. Since I'm seeing many JDO posts, I have to agree with Keith, it looks
like it's pretty active.
-- David
> -----Original Message-----
> From: Keith Visco [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, February 18, 2003 5:48 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [castor-dev] Article about Castor-JDO
>
>
> Hi Hugh,
>
> Thanks for your concern, however Castor JDO *IS* being maintained. Bruce
> Synder, the current Castor JDO lead, along with others, such as Micka�l
> Guessant, are handling the maintenance, bug fixes, development of Castor
> JDO.
>
> Keep in mind that the work done on Castor is on a volunteer basis. Some
> volunteers will have more time to spend then others, but I can assure
> that there are people who are generously contributing to and maintaining
> Castor JDO.
>
> As far as where our efforts are focused, my efforts are focused, and
> always have been, almost entirely on Castor XML, because that's where my
> interests are and the fact that I primarily deal with XML in my daily
> job. But... there are people whose efforts are focused entirely on
> Castor JDO.
>
> Due to the differences in the amount of time that people can contribute
> to the project, Castor XML and Castor JDO will see un-even amounts of
> growth. Just because one side of the project has more activity than the
> other, doesn't mean that the other side isn't being worked on.
>
> Thanks,
>
> --Keith
>
>
> Hugh Winkler wrote:
> >
> > I think the silence speaks for itself. I don't think JDO is actively
> > being maintained? Correct me if I am wrong here somebody. Anyway it has
> > severe basic bugs that are not being worked on.
> >
> > I don't want at all to disparage the Castor team's work. The XML work is
> > great. Looks like that's where their efforts currently are focused. I'm
> > guessing JDO is not strategic for them right now.
> >
> > I think it's dangerous though, to leave JDO out there and foster the
> > impression that new projects ought to use it. It ought to be labeled
> > "experimental" or "deprecated" or something, so that developers don't
> > get the wrong impression about its suitability for production systems.
> >
> > Hugh
> >
> > -----Original Message-----
> > From: Keld Helbig Hansen [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, February 18, 2003 3:43 AM
> > To: [EMAIL PROTECTED]
> > Subject: [castor-dev] Article about Castor-JDO
> >
> > I'm currently preparing an article about Castor-JDO for a large Java
> > web-site.
> > The article is a beginners tutorial to Castor-JDO.
> > Since I haven't got practical experience with Castor, I'd like to get in
> > contact with a skilled Castor-JDO person that could help me answer some
> > technical questions. I've tried to put some of my questions here in the
> > newsgroup, but without much success.
> > If you're interested in helping me the next week or so I'd be great.
> > I'll of course give you due credit in my article.
> >
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