How to process List of records in xml formate in Salesforce Apex

Dom.Document doc= new Dom.Document(); // created Document object

doc.load(xml); //xml is xml fromated string

Dom.XmlNode root= doc.getRootElement();

for(Dom.XmlNode orderNode : root.getChildElement()){

//we are loading list of records on by one in for loop // asume we are loading list of orders.

Order orderRec= new Order();

For(Dom.XmlNode fieldNode : orderNode.getChildElement()) {

//here we are getting each and field is all object

String field1Name= fieldNode.getName();

String field1Value= fieldNode.getText();

if(field1Name == order id && field1Value == "send"){

//create updated account

}

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