return null;
IteratorFactoryConfig[] iteratorFactoryConfig = new IteratorFactoryConfig[list.getLength()];
for(int i = 0; i < list.getLength(); i++) {
Node node = list.item(i);
iteratorFactoryConfig[i] = new IteratorFactoryConfig(
DomUtils.getChildElementText((Element)node, "name"),
DomUtils.getChildElementText((Element)node, "factory-class")
);
}
return iteratorFactoryConfig;