private int set(String element, int column) {
			int updated = 0;

			if (projection.values.length == 0) {
				columns.add(element);
				++updated;
			} else {
				int pos = -1;
				while ((pos = indexOf(projection.values, pos + 1, column)) != -1) {
					for (int i = columns.size(); i <= pos; ++i) {
						columns.add(null);
					}
					columns.set(pos, element);
					++updated;
				}
			}

			return updated;
		}
Appends a {@code column} to the column collection.

@param column the column to add
jenetics.ext/src/main/java/io/jenetics/ext/util/CsvSupport.java