public Collection get(XmldbURI name) { long key = names.get(name.getRawCollectionPath()); if (key < 0) return null; return (Collection) get(key);
public Collection get(Collection collection) { return (Collection) get(collection.getKey());
	public Collection get(XmldbURI name) {		long key = names.get(name.getRawCollectionPath());		if (key < 0)			return null;		return (Collection) get(key);	}