On 2001.08.09 17:30:51 -0400 Toby Allsopp wrote:
> On Wed, Aug 08, 2001 at 11:30:39PM -0400, David Jencks wrote:
> > At the risk of changing the subject ;-)
> > There seem to be two xml-configuration parsing systems in use. The
> older
> > stuff like for ejb-jar uses code that partially validates the xml while
> > setting properties, whereas the rar deployer uses a reflection based
> scheme
> > that pretty completely separates the xml structure from the property
> > setting. I like the reflection-based structure-independent way better,
> > although I think it should only be used with a dtd and xml parser
> > validation-- although this should be done anyway imho. Does anyone
> else
> > have an opinion?
>
> Well, I'm quite partial to the reflection-based technique :-)
Me too!! Good work Toby!!
>
> It will run into problems with complicated data structures because it
> pretty much just flattens the XML file into a series of setAttribute
> calls.
I didn't find this problem, I made a pretty complicated data structure
load. I used [collections of] inner classes, and the appropriate setXXX
method created an inner class instance and had the reflective parser call
the setYYY on the inner class. This was for the rule engine adapter I
worked on, the rules and other config was all in xml.
Still I'll have to look at the Castor stuff.
Hmmm, just looked at sun - there's something called JAXB that apparently
compiles an xml schema into a custom parser that does 2 way translation
between xml and an object tree. Since this is an impending standard it
will presumably be the way to go.. for castor as well.
david jencks
>
> Toby.
>
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