public int compareTo(final ColumnMap o) {
int compare = 0;
if (compare == 0) {
compare = primaryKeyColumn.compareTo(o.getPrimaryKeyColumn());
}
if (compare == 0) {
compare = foreignKeyColumn.compareTo(o.getForeignKeyColumn());
}
return compare;
}
/**
* {@inheritDoc}
*
* <p>Note: Since indexes are not always explicitly named in databases, the sorting routine orders
* the indexes by the names of the columns in the index.
*/
@Override
public int compareTo(final NamedObject obj) {
if (obj == null) {
return -1;
}
final Index other = (Index) obj;
int comparison = 0;
final Column[] thisColumns = getColumns();
final Column[] otherColumns = other.getColumns();
if (comparison == 0) {
comparison = thisColumns.length - otherColumns.length;
}
if (comparison == 0) {
for (int i = 0; i < thisColumns.length; i++) {
final Column thisColumn = thisColumns[i];
final Column otherColumn = otherColumns[i];
if (comparison == 0) {
comparison = thisColumn.compareTo(otherColumn);
} else {
break;
}
}
}
if (comparison == 0) {
comparison = super.compareTo(other);
}
return comparison;
}