1
19
20 package com.liferay.portlet.journal.util.comparator;
21
22 import com.liferay.portal.kernel.util.DateUtil;
23 import com.liferay.portal.kernel.util.OrderByComparator;
24 import com.liferay.portlet.journal.model.JournalArticle;
25
26
33 public class ArticleDisplayDateComparator extends OrderByComparator {
34
35 public static String ORDER_BY_ASC = "displayDate ASC, version ASC";
36
37 public static String ORDER_BY_DESC = "displayDate DESC, version DESC";
38
39 public ArticleDisplayDateComparator() {
40 this(false);
41 }
42
43 public ArticleDisplayDateComparator(boolean asc) {
44 _asc = asc;
45 }
46
47 public int compare(Object obj1, Object obj2) {
48 JournalArticle article1 = (JournalArticle)obj1;
49 JournalArticle article2 = (JournalArticle)obj2;
50
51 int value = DateUtil.compareTo(
52 article1.getDisplayDate(), article2.getDisplayDate());
53
54 if (value == 0) {
55 if (article1.getVersion() < article2.getVersion()) {
56 value = -1;
57 }
58 else if (article1.getVersion() > article2.getVersion()) {
59 value = 1;
60 }
61 }
62
63 if (_asc) {
64 return value;
65 }
66 else {
67 return -value;
68 }
69 }
70
71 public String getOrderBy() {
72 if (_asc) {
73 return ORDER_BY_ASC;
74 }
75 else {
76 return ORDER_BY_DESC;
77 }
78 }
79
80 private boolean _asc;
81
82 }