.element(GraphSchema.NODE_X_LOCATION_TAG);
this.position.x = (int) Double.parseDouble(xElement.requiredText());
XmlElement yElement = nodeElement
.element(GraphSchema.NODE_Y_LOCATION_TAG);
this.position.y = (int) Double.parseDouble(yElement.requiredText());
XmlElement configElement = nodeElement
.element(GraphSchema.NODE_CONFIG_TAG);
if (configElement != null) {
parseConfiguration(configElement);