diff options
Diffstat (limited to 'src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java')
| -rw-r--r-- | src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java b/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java index 7bf09ac..cede956 100644 --- a/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java +++ b/src/eu/equalparts/cardbase/comparator/ComparatorDelegates.java @@ -8,6 +8,17 @@ final class ComparatorDelegates { /* * Delegates */ + /** + * Compares two dirty numbers, that is, strings containing a single number + * and, optionally, additional non-numerical characters. + * For instance, when comparing "150a" and "36", this comparator delegate + * first compares 150 with 36 using the standard integer comparison, and + * returns an integer > 1 because 150 > 36. + * + * @param field1 the first field to compare. + * @param field2 the second field to compare. + * @return a value smaller than, equal to or greater than 0 according to the standard comparison convention. + */ public static Integer compareDirtyNumber(Comparable<String> field1, Comparable<String> field2) { // this assumes that the format is uninterrupted numbers and letters String number1 = ((String) field1).replaceAll("[^0-9]+", ""); |