private Vector<Vector<String>> getWQLEventNode(String xml,String ParamAttValue)
	{
		if(xml==null){System.out.println("ERROR:SSAP_XMLTools:getWQLEventTriple: XML message is null");return null;}

		Element parameters = getParameterElement(xml,"name", ParamAttValue);
		if(parameters==null){System.out.println("ERROR:SSAP_XMLTools:getWQLEventTriple:parameters not found:"+ParamAttValue);return null;}

		Element node_list = parameters.getChild("node_list");
		if(node_list==null) {System.out.println("ERROR:SSAP_XMLTools:getWQLEventTriple:node_list not found");return null;}

		List<Element> all_node = node_list.getChildren(); //could be literal or uri
		if(all_node==null /*|| all_node.isEmpty()*/)
		{System.out.println("ERROR:SSAP_XMLTools:getWQLEventTriple:children for node_list not found");return null;}

		Vector<Vector<String>> nodes=new Vector<Vector<String>>();

		Iterator<Element> i = all_node.iterator();

		while(i.hasNext())
		{   Vector<String> singleton=new Vector<String>();

		Element etriple = i.next();

		//System.out.println("E-TRIPLE:"+etriple.getName()+" value:"+etriple.getText());
		singleton.add(etriple.getName());
		singleton.add(etriple.getText());

		nodes.add(singleton);			
		}//while(i.hasNext())

		return nodes;
	}