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1 package org.enhydra.jawe.xml.panels.tablesorting;
2
3 import java.util.Collections  ;
4 import java.util.Comparator ;
5 import java.util.Vector ;
6 import javax.swing.table.DefaultTableModel ;
7 import org.enhydra.jawe.xml.XMLCollection;
8 import org.enhydra.jawe.xml.XMLCollectionElement;
9 import org.enhydra.jawe.xml.XMLElement;
10
11 public class SortingTableModel extends DefaultTableModel {
12
13 XMLCollection owner;
14
15 public SortingTableModel(XMLCollection c,Vector data, Vector names) {
16 super(data, names);
17 this.owner=c;
18 }
19
20 public void sortByColumn(int col, boolean ascending) {
21 Vector dv=getDataVector();
22 Vector v=new Vector (dv);
23 int vs=v.size();
24 for (int i=vs-1; i>=0; i--) {
25 XMLElement el=(XMLElement)((Vector )v.elementAt(i)).elementAt(0);
26 if (el instanceof XMLCollectionElement) {
27 XMLCollectionElement cel=(XMLCollectionElement)el;
28 XMLCollection celOwner=cel.getCollection();
29 if (celOwner==null || !celOwner.equals(owner)) {
30 v.remove(i);
31 }
32 }
33 }
34 vs=v.size();
35 if (vs>0) {
36 Collections.sort(v,new ColumnSortingComparator(col, ascending));
37 for (int i=0; i<vs; i++) {
38 dv.set(i,v.get(i));
39 }
40 }
41 }
42
43 static class ColumnSortingComparator implements Comparator {
44
45 protected int index;
46 protected boolean ascending;
47
48 public ColumnSortingComparator(int index, boolean ascending) {
49 this.index = index;
50 this.ascending = ascending;
51 }
52
53 public int compare(Object first, Object second) {
54 if (first instanceof Vector && second instanceof Vector ) {
55 String str1 = ((Vector )first).elementAt(index).toString();
56 String str2 = ((Vector )second).elementAt(index).toString();
57 if (ascending) {
58 return str1.compareTo(str2);
59 } else {
60 return str2.compareTo(str1);
61 }
62 }
63
64 return 1;
65 }
66
67 }
68 }
69 |
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