archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/util/StringArrayComparator.java

   1 package com.quantum.util;
   2
   3 import java.util.Comparator;
   4
   5
   6 /**
   7  * @author BC
   8  */
   9 public class StringArrayComparator implements Comparator {
  10
  11         public int compare(Object arg0, Object arg1) {
  12                 return compare((String[]) arg0, (String[]) arg1);
  13         }
  14
  15         public int compare(String[] arg0, String[] arg1) {
  16                 if (arg0 == null && arg1 == null) {
  17                         return 0;
  18                 } else if (arg0 == null) {
  19                         return -1;
  20                 } else if (arg1 == null) {
  21                         return 1;
  22                 } else if (arg0.length != arg1.length) {
  23                         return arg0.length - arg1.length;
  24                 } else {
  25                         int result = 0;
  26                         for (int i = 0, length = arg0 == null ? 0 : arg0.length;
  27                                         result == 0 && i < length; i++) {
  28                                 result = compare(arg0[i], arg1[i]);
  29                         }
  30                         return result;
  31                 }
  32         }
  33
  34         private int compare(String arg0, String arg1) {
  35                 if (arg0 == null && arg1 == null) {
  36                         return 0;
  37                 } else if (arg0 == null) {
  38                         return -1;
  39                 } else if (arg1 == null) {
  40                         return 1;
  41                 } else {
  42                         return arg0.compareTo(arg1);
  43                 }
  44         }
  45 }