Third Party Java API, XML and Oracle PL/SQL

I need some help.

I have a third party java API to search a Stock Database

An example of how I would do this is:

String query = "Light Bulb";
QueryBuilder builder = new QueryEngine("stockSearch");
org.jdom.Document searchResult = Builder.search(query);

The search results come back as an XML org.jdom.document
<products>
      <listitem row="0">
            <description>40w Light Bulb</Description>
            <price>1.99</price>
      </listitem>

      <listitem row="1">
            <description>60w Light Bulb</Description>
            <price>2.99</price>
      </list>
</products>
            

What i need to know is how to execute the api from PL/SQL
and get the result into a temporary table in oracle.

Table structure.

temp_row                  NUMBER(12)
temp_description      VARCHAR2(200)
temp_price                  NUMBER(12,2)

So? Do i need to get the third party API into that database with loadjava?
What is the PLSQL to be able to pass a search string?
And how do i get the resultant document in to the db.

Alternatively the resulting document can be generated with http

eg http://stockserver/stockServlet?query=Light%20Bulb
and returns the same xml document

Would that be simpler to execute in the database?

I know there is a lot, but all all help is appreciated