/** * Returns the object at row # row * * @param row the row number * @return the object at row # row. if no such object exists - returns null. */ public Object getObject(int row) { if (elements.containsKey(row)) { return elements.get(row); } else { return SparseDefaultValues.getDefaultObject(); } }
/** Returns the internal representation of this column. */ public Object getInternal() { int max_index = -1; Object[] internal = null; int[] keys = elements.keys(); for (int i = 0; i < keys.length; i++) { if (keys[i] > max_index) { max_index = keys[i]; } } internal = new Object[max_index + 1]; for (int i = 0; i < max_index + 1; i++) { internal[i] = SparseDefaultValues.getDefaultObject(); } for (int i = 0; i < keys.length; i++) { internal[keys[i]] = elements.get(keys[i]); } return internal; }