Adding XML sub elements to an ArrayList with DOM4J

Question

here's a sample of my XML file:

<agregator1 id="CSP">
    <id>int</id>
    <type>string</type>
</agregator1>
<agregator1 id="Microgrid">     
    <id>int</id>
    <type>string</type>
</agregator1>

I've never worked with DOM4J and I've read the documentation but I can't seem to get the sub-elements into ArrayList's, I'm trying to do the following:

arrayList1: id, type
arrayList2: int, string

here's my code:

for ( Iterator i = root.elementIterator(); i.hasNext(); ) {
    Element foo = (Element) i.next();
    if(foo.attributeValue("id").toString().equals("CSP"))
    {
      //what am I missing here?
    }
}

I've searched a lot, and I can't find any solution since I can't do foo.getChildNodes().

Any sugestions?

EDIT: I need to get the node names without using elementText(String) (or anything like this) because I need my code to work even if the XML file is changed, without editing my code.

Answer 1

I solved my problem. Thanks to all who tryed to help. To all the people who are searching for a similar solution, here's my code:

This is the above method, completed:

public static ArrayList<Element> readSubElements()
   {
       ArrayList<Element> subElements = new ArrayList<>();

        Element root = configs.XMLreaderDOM4J.getDoc().getRootElement();
        for (Iterator it = root.elementIterator(); it.hasNext();){
            Element foo = (Element) it.next();
            if(foo.attributeValue("id").equals("VPP"))
            {
               for (Iterator it2 = foo.elementIterator(); it2.hasNext(); )
               {
                  Element temp = (Element) it2.next();
                   subElements.add(temp);
                   System.out.println(""+temp);
               }
            }
        }

       return subElements;        
   }

And a new method I've created:

public static void getTagNames() {

   ArrayList<Element> elements = readSubElements();
   ArrayList<String> list1 = new ArrayList<>();
   ArrayList<String> list2 = new ArrayList<>();
   setSize(elements.size());

   for (Iterator it = elements.iterator(); it.hasNext();) {
      Element entry = (Element) it.next();
      list1.add(entry.getQualifiedName());
      list2.add(entry.getText());
   }

   setTagNamesAL(list1);
   setTagContentAL(list2);
}