XML
StAX
Read XML

Common methods of the XMLStreamReader object

Method	Description
hasNext()	Returns true if there are more parsing events and false if there aren't.
next()	Gets the next parsing event.
getEventType()	Returns an int value that indicates the type of the parsing event (based on the constants defined by the XMLStreamConstants interface).
getLocalName()	Returns the name of the current element.
getAttributeValue(index)	Returns a string value for the attribute stored at the index.
getAttributeCount()	Returns a count of attributes for this element.
getAttributeLocalName(index)	Returns the name of the attribute at the specified index.
getElementText()	Reads the value of a text-only element. An exception is thrown if the element isn't a text-only element.
getText()	Reads the value of a COMMENT, DTD, CHARACTERS, CDATA, or SPACE parsing event.

Common constants defined by the XMLStreamConstants interface

Constant	Description
START_ELEMENT	The event is a start element.
END_ELEMENT	The event is an end element.
ATTRIBUTE	The event is an attribute
CHARACTERS	The event is character data.
COMMENT	The event is a comment.
SPACE	The event is whitespace.
DTD	The event is a DTD.

Code that reads all Product elements into a products array list

ArrayList products = new ArrayList();
Product p = null;

while (reader.hasNext())
{
    int eventType = reader.getEventType();
    switch (eventType)
    {
        case XMLStreamConstants.START_ELEMENT:
            String elementName = reader.getLocalName();
            if (elementName.equals("Product"))
            {
                p = new Product();
                String code =
                    reader.getAttributeValue(0);
                p.setCode(code);
            }
            if (elementName.equals("Description"))
            {
                String description =
                    reader.getElementText();
                p.setDescription(description);
            }
            if (elementName.equals("Price"))
            {
                String priceString =
                    reader.getElementText();
                double price =
                    Double.parseDouble(priceString);
                p.setPrice(price);
            }
            break;
        case XMLStreamConstants.END_ELEMENT:
            elementName = reader.getLocalName();
            if (elementName.equals("Product"))
            {
                products.add(p);
            }
            break;
        default:
            break;
    }
    reader.next();
}

A safer and more flexible way to read attributes

int count = reader.getAttributeCount();
for (int i = 0; i < count; i++)
{
    if (reader.getAttributeLocalName(i).equals("Code"))
    {
        String code = reader.getAttributeValue(i);
    }
}