[jdom-interest] converting Elements to objects

[Anton Stoyanov]

Hey ,
 a reply from mr Hunter himself :)

just to take the opportunity to thank you for everything you've done, 
i'll take a look at JATO then :)

anton


On Thu, 17 Feb 2005 12:38:08 -0800, Jason Hunter <jhunter at xquery.com> wrote:
> The most elegant way I've seen to do this is JATO, but it's not a very
> active project.
> 
> http://sourceforge.net/projects/jato
> 
> It was written up in JavaWorld in the past.
> 
> -jh-
> 
> Anton Stoyanov wrote:
> 
> > Hi,
> >
> > thanks for the answers :) it's my first post in this list and i'm
> > really happy to get such instant expert opinions :)
> >
> >
> > you are right I don't want to change the customer object in any way
> > (extending element or taking in an element)
> >
> > Jason, you say makeCustomer would read out the fields..... can I make
> > this generic - so that it's not makeCustomer but "makeObject(Element
> > e)" which will just take in an element and automatically recognize if
> > it's a customer or saleitem or whatever object and make old the
> > children into strings, say, in that object.
> >
> >
> > thanks alot
> > anton
> >
> >
> > On Thu, 17 Feb 2005 14:44:36 -0500, Jason Winnebeck <gillius at gillius.org> wrote:
> >
> >>Anton Stoyanov wrote:
> >>
> >>>with JDOM I can get a java.util.List of elements, but how can I
> >>>transform them into customer objects ?
> >>
> >>As far as I know, there is not a JDOM method or another automatic method to
> >>do this.
> >>
> >>The way I resolve this is by making a constructor for Customer that takes an
> >>Element pointing to a customer tag, then reads the children of that tag.
> >>
> >>Element e = parent.getChild( "customer" );
> >>Customer c = new Customer( e );
> >>
> >>If you want to separate the JDOM/XML parsing away from the design of the
> >>Customer class (there are various reasons you may object to putting JDOM
> >>code into the Customer class, espically if you did not write the Customer
> >>class), you could use a sort of factory.
> >>
> >>If your XML is pretty structured and you aren't sure what you are going to
> >>get out of it you could use a generic factory that returned an object
> >>implementing an interface, and the specific type is dependent on the tag
> >>passed in.  Or, if you do know what you are getting, then you could do
> >>something like:
> >>
> >>Element e = parent.getChild( "customer" );
> >>Customer c = XMLObjectFactory.makeCustomer( e );
> >>
> >>makeCustomer would presumably read out the fields and call a verbose form of
> >>constructor for Customer to construct an appropriate new Customer object.
> >>
> >>Jason Winnebeck
> >>_______________________________________________
> >>To control your jdom-interest membership:
> >>http://www.jdom.org/mailman/options/jdom-interest/youraddr@yourhost.com
> >>
> >
> >
> >
> 


-- 
----------------------
Anton Stoyanov