virtual const Clonable * getProperty(int nodeId, const string & name) const { return getNode(nodeId) -> getProperty(name); }
const Clonable * getProperty(int nodeId, const string & name) const throw (NodeNotFoundException) { return getNode(nodeId) -> getProperty(name); }
		virtual const Clonable * getProperty(int nodeId, const string & name) const { return getNode(nodeId) -> getProperty(name); }