/** @throws ReadDriverException TODO */
public void order() throws ReadDriverException {
int rowCount = (int) dataSource.getRowCount();
columnCache = new Value[rowCount][fieldIndexes.length];
for (int field = 0; field < fieldIndexes.length; field++) {
for (int i = 0; i < rowCount; i++) {
columnCache[i][field] = dataSource.getFieldValue(i, fieldIndexes[field]);
}
}
TreeSet set = new TreeSet(new SortComparator());
for (int i = 0; i < dataSource.getRowCount(); i++) {
set.add(new Integer(i));
}
orderIndexes = new long[(int) dataSource.getRowCount()];
int index = 0;
Iterator it = set.iterator();
while (it.hasNext()) {
Integer integer = (Integer) it.next();
orderIndexes[index] = integer.intValue();
index++;
}
}
/** @see com.hardcode.gdbms.engine.data.driver.ReadAccess#getFieldValue(long, int) */
public Value getFieldValue(long rowIndex, int fieldId) throws ReadDriverException {
return dataSource.getFieldValue(orderIndexes[(int) rowIndex], fieldId);
}
