// Find the handler and save it on the handler stack.
ElementHandler handler = (ElementHandler) handlers.get(path);
handlerStack.add(handler);
// Call the handlers onStart method.
handler.onStart(elementPath);
} else {
// No handler is associated with this node, so use the
// defaultHandler it it exists.
if (handlerStack.isEmpty() && (defaultHandler != null)) {
defaultHandler.onStart(elementPath);