Also, you might be interested in a new translet library

http://translet.sourceforge.net

As far as the type safety is concerned, you can create a cutom DOM
implementation, which has strongly typed method names and will use the
underlying XML to return you the values (Ex: HTML DOM). It is not
obvious, but rather simple to implement one.

-karthik

Philip Dodds wrote:

>You might also want to look at the BEA XMLBeans which recently went open
>source as this also offers the ability to directly interact with XML.
>
>Philip
>
>-----Original Message-----
>From: An interest list for Sun Java Center J2EE Pattern Catalog
>[mailto:J2EEPATTERNS-INTEREST@(protected)
>Sent: 18 July 2003 13:14
>To: J2EEPATTERNS-INTEREST@(protected)
>Subject: Re: XML as DTO
>
>Rao,
>
>     I have always preferred the value object via EJB remote (or business
>delegate) J2EE patterns as a preferred way to cross the layers. I prefer
>this to XML as I prefer to have the benefits of a compile time type checked
>environment which is lessened with XML object representations. While XML is
>a powerful addition to the computing environment, it is up to the
>implementation (as well as the parser) to perform runtime type conversions
>and type checking.
>
>     If you want a simplified approach (as for development coding effort)
>you may want to look into JAXB (Part of Web Services) which is a SUN
>extension to bind java object to XML and visa versa. A good intro can be
>found in the Web Services tutorial (Chapter 9) at:
>http://java.sun.com/webservices/docs/1.1/tutorial/doc/
>
>     It simplifies the task by creating java objects based on XML schema.
>This is defined as a pre-compile step, so it would be something you would
>want to incorporate into your build process (ant ot whatever). I currently
>did something very similar to this, as I passed XML from remote JVM to
>remote JVM. I used a java object and then made that object responsible for
>serializing itself (not via java.io.Serialization, but same term) to and
>from XML. This way the remaining clients of the object remained unaware of
>the XML nature of the protocol and transfer.
>
>     Hope this helps you out.
>
>Thanks,
>Gary
>
>-----Original Message-----
>From: Narasimha Rao Ch. V. [mailto:narasimharao@(protected)]
>Sent: Friday, July 18, 2003 1:48 AM
>To: J2EEPATTERNS-INTEREST@(protected)
>Subject: XML as DTO
>
>
>We were thinking of implementing XML as DTO between Presentation and
>Business Layer. Database won't support record sets from XML but it retrieves
>record sets as XML. In this scenario is it a viable solution to use XML as
>DTO or Plain Objects are better to use as DTOs?
>In the earlier scenario system has to extract and build the domain object
>from the XML. Any body has any idea of a solution to build domain object
>from the XML?
>-Rao
>
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