 		}
 
 		/**
-		 * requestColumnFromSource
 		 * This function must be implemented by classes by extend AbstractDataSource.
 		 * This function should make a request to the source to fill in the proxy column.
 		 * @param columnReference An object that contains all the information required to request the column from this IDataSource. 

	import weave.utils.VectorUtils;
	
	/**
	 * CSVDataSource
	 * 
	 * @author adufilie
	 * @author skolman

		}
		
		/**
		 * This function must be implemented by classes by extend AbstractDataSource.
		 * This function should make a request to the source to fill in the hierarchy.
		 * @param subtreeNode A pointer to a node in the hierarchy representing the root of the subtree to request from the source.
