Re: [jibx-users] accessing the stack in a binding

Dennis Sosnoski Tue, 06 Jul 2004 02:03:17 -0700

Actually, I realized there's an easy way of doing what you want with just the binding definition. That's basically to separately control the element nesting and the context object, making use of the split nature of <structure>s that can have only a name or only a field, like this:

<mapping name="A" class="A">
 <value style="attribute" field="a_name"/>
 <structure name="B">
   <structure field="b">
     <value style="attribute" field="b_name"/>
   </structure>
   <structure name="C" field="c">
     <value style="attribute" field="c_name"/>
   </structure>
 </structure>
</mapping>

Sometimes I forget how flexible the binding definition can be. On the other hand, some of these unusual uses of <structure> have been where most of the problems have occurred. Let me know if you run into any problems.

 - Dennis

Dennis Sosnoski wrote:

Looks like you're doing some very warped things with JiBX (and I mean that in a good way, I think)! You should be able to do this by using a get-method added to the B class. If the get-method has the signature name(Object obj) it will be passed the containing object. You can cast this to an A and get the C reference from there.

That's obviously not as convenient as having JiBX just do it for you directly, and it's possible the binding definition could be extended to represent this. It's a pretty uncommon requirement, though.

If you find this comment useful and try it out I'd appreciate it if you could also add it to the Wiki. For what it's worth I think I've made it a little easier to use, with some basic instructions on the form to add or edit a snip.
 - Dennis
Tilman Linden wrote:
hello again,
i wonder if there is a possibility to access the element stack inside of
a binding definition, just like you can do inside a Custom Marshaller
using getStackObject(...).
assume the following scenario:
class A {
String a_name;
B b;
C c;
}
class B {
String b_name;
}
class C {
String c_name;
}
shall be marshalled to the following XML:
<A name="a_name">
<B name="b_name">
  <C name="c_name"/>
</B>
</A>
the following mapping should describe the problem:
<mapping name="A" class="A">
<value style="attribute" field="a_name"/>
<structure name="B" field="b">
  <value style="attribute" field="b_name"/>
  <structure name="C" field= ?HOW TO ACCESS A.c AT THIS POINT? >
    <value style="attribute" field="c_name"/>
  </structure>
</structure>
</mapping>
maybe it is just bad design trying to map a flat object structure to a nested XML structure, but i encountered this problem quite a few times. if i overlooked a simple solution for this, maybe someone can point me at it. i would like to avoid custom marshallers because then the mapping semantics are split across the binding and the marshaller.
regards,
Tilman
------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ jibx-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jibx-users


--
Dennis M. Sosnoski
Enterprise Java, XML, and Web Services
Training and Consulting
http://www.sosnoski.com
Redmond, WA  425.885.7197

------------------------------------------------------- This SF.Net email sponsored by Black Hat Briefings & Training. Attend Black Hat Briefings & Training, Las Vegas July 24-29 - digital self defense, top technical experts, no vendor pitches, unmatched networking opportunities. Visit www.blackhat.com _______________________________________________ jibx-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jibx-users

Re: [jibx-users] accessing the stack in a binding

Reply via email to