On 26 Sep 2004, at 18:59, Christoph Gaffga wrote:
hi,
I have to output some Exception instances to XML using betwixt, but it doesn't seem to be possible to get the class name into the XML result.
yep. it's on the todo...
First of all it should output the name of the class only, and not introspect
the whole Class type. This is done well because the type Class is handled as
a primitive type (see
TypeBindingStrategy.Default.isStadardPrimitive(Class)).
a concrete example would be useful (so i'm sure i understand you correctly)...?
(i'm guessing that you want to map a com.example.SomeException class to xml which looks something like:
<exception>
<message>Mysterious problem</message>
<class>com.example.SomeException<class>
</exception>)But the output of the class name is deactivated in betwixt for whatever reason and there is no configuration option for turning it on for some classes, or plugging some custom rules in for that.
that's true.
this is related to the derived beans stuff i've been looking at recently. i should really add support for writing types (so that betwixt supports round tripping for simple attribute typed derived beans) so i'll probably take a look at coding this up sometime soonish. but it's important that i understand your use case so i make that i cover it.
<snip>
I don't want to output the class property for all beans, I just want to have it for
all beans derived from java.lang.Throwable.
so, you'll need a coursely grained pluggable strategy. probably also want to be able to override in a betwixt file but that seem like it's a secondary priority.
Does anybody has a hint for me, where to start? I can't get the parent bean
containing the property 'class' in configureProperty(..) method, only
PropertyDescriptor, that does not has a context.
i'm happy to take a look at coding this up but i other pots on the boil right now so it might take a few days...
- robert
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