Populating listitem from xml

Question

I am new to Forms but I am having to learn quickly. I need to populate a listitem from XML.
The XML already exists (is response from calling REST web service) and is in a variable.
Is there a simple way of scrolling through this xml file and extracting just the element values e.g. postcode and using these to populate a listitem?
in .net it is very easy, it seems very hard in Oracle :(
the xml is
<?xml version="1.0" encoding="UTF-8"?>
<al_qb_api_response>
<addresses>
<address>
<id>normal:BOGBBDAzYBwMDAQAAmheiAAAAAAAzNABkAA--</id>
<type>normal</type>
<line>34 Collin Avenue, Erith, Kent</line>
<postcode>DA8 1EE</postcode>
</address>
<address>
<id>normal:COGBBDAzYBwMDAQAAn3ZYAAAAAAAzNABkAA--</id>
<type>normal</type>
<line>34 Collin Avenue, Sidcup, Kent</line>
<postcode>DA15 9DW</postcode>
</address>
</addresses>
</al_qb_api_response>
thank you.

Answer 1

in .net it is very easy, it seems very hard in Oracle :(I don't think its so hard in oracle, you simply need some additional steps.
First, build your code to extract the desired information from the xml-file using Java and the JDeveloper. This should be quite similar to the way you do it in .net . Then, build one method on top of that extraction code which returns a string-array (exactly the values you want to assign to your listitem). Then you can use the forms-java-importer to create a PL/SQL-wrapper around this java-class and simply use the resulting code in PL/SQL in forms.