/**
* Determine whether or not any columns in the current index row are being changed by the update.
* No need to update the index if no columns changed.
*
* @return Nothing.
* @exception StandardException Thrown on error
*/
private boolean indexRowChanged() throws StandardException {
int numColumns = ourIndexRow.nColumns();
for (int index = 1; index <= numColumns; index++) {
DataValueDescriptor oldOrderable = ourIndexRow.getColumn(index);
DataValueDescriptor newOrderable = ourUpdatedIndexRow.getColumn(index);
if (!(oldOrderable.compare(DataValueDescriptor.ORDER_OP_EQUALS, newOrderable, true, true))) {
return true;
}
}
return false;
}
@Override
@SuppressFBWarnings(value = "RV_NEGATING_RESULT_OF_COMPARETO", justification = "Intentional")
public int compare(ExecRow o1, ExecRow o2) {
DataValueDescriptor[] a1 = o1.getRowArray();
DataValueDescriptor[] a2 = o2.getRowArray();
for (int i = 0; i < a1.length; ++i) {
DataValueDescriptor c1 = a1[i];
DataValueDescriptor c2 = a2[i];
int result;
try {
result = c1.compare(c2, nullsOrderedLow == null ? true : nullsOrderedLow[i]);
} catch (StandardException e) {
throw new RuntimeException(e);
}
if (result != 0) {
return descColumns == null || !descColumns[i] ? result : -result;
}
}
return 0;
}