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From robert burrell donkin <robertburrelldon...@blueyonder.co.uk>
Subject Re: [Betwixt] Derived Class support
Date Fri, 09 May 2003 15:05:03 GMT
hi ross

that all sounds great!

the best way is to do a cvs diff -u against CVS HEAD and either post it to 
the list or add it to bugzilla.

- robert

On Friday, May 2, 2003, at 03:26 PM, Ross Mason wrote:

> Hi James/ Robert,
>
>
>
> Just to give you an update.  I've got betwixt working with most of the
> functionality needed for Derived class support -
>
>
>
> -          Population of derived class attributes from the BeanReader now
> works.
>
> -          It also supports population of beans with common attributes. i.
> e.
> 'Person' has an attribute 'name' only, 'Consultant' and 'Hitman' extend
> Person.  They both have a attributes hourlyRate, but the attribute is not
> derived.  I needed this scenario supported in my code.    Currently, only
> primitive common attribute types are supported.
>
> -          To demonstrate this I've written a new test case in the derived
> package.  This tests all the old and new functionality and also tests
> round-tripping.
>
> -          I haven't had time to write support in the .betwixt files to
> specify whether the className attribute should be written for a bean or 
> made
> the attribute name 'className' configurable (as James suggested) . I've 
> been
> testing the code with a derived XMLIntrospector that checks to see if the
> bean being introspected is of a certain base-class type and includes a
> className attribute descriptor. Maybe we should let users register derived
> classes with the XMLIntrospector and determine whether the attribute 
> should
> be written automatically?
>
> -          I've been running my project with this code for the past week
> without any problems and all the existing test-cases work.
>
>
>
> The code I've written does the job but there may be better ways of doing 
> it
> (especially the support for common attributes).   Betwixt as it stands is
> pretty hard to extend and it's apparent that certain areas need
> re-factoring/ re-architecting.  I would be keen to get involved with this,
> but I'm pretty busy with other stuff for the next 6 weeks.
>
>
>
> Anyway, what now? How do you want me to get the code to you so you can 
> check
> it over?
>
>
>
>
>
> Ross
>
> -------------------------------------------
>
> Mobile: +44 (0) 7745 944 082
>
> Work:  +44 (0) 20 7503 4811
>
> Fax:      +44 (0) 20 7503 4811
>
>
>


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