001
014
015 package com.liferay.portlet.blogs.util.comparator;
016
017 import com.liferay.portal.kernel.util.DateUtil;
018 import com.liferay.portal.kernel.util.OrderByComparator;
019 import com.liferay.portlet.blogs.model.BlogsEntry;
020
021
024 public class EntryDisplayDateComparator extends OrderByComparator {
025
026 public static String ORDER_BY_ASC = "displayDate ASC, entryId ASC";
027
028 public static String ORDER_BY_DESC = "displayDate DESC, entryId DESC";
029
030 public static String[] ORDER_BY_FIELDS = {"displayDate", "entryId"};
031
032 public EntryDisplayDateComparator() {
033 this(false);
034 }
035
036 public EntryDisplayDateComparator(boolean ascending) {
037 _ascending = ascending;
038 }
039
040 @Override
041 public int compare(Object obj1, Object obj2) {
042 BlogsEntry entry1 = (BlogsEntry)obj1;
043 BlogsEntry entry2 = (BlogsEntry)obj2;
044
045 int value = DateUtil.compareTo(
046 entry1.getDisplayDate(), entry2.getDisplayDate());
047
048 if (value == 0) {
049 if (entry1.getEntryId() < entry2.getEntryId()) {
050 value = -1;
051 }
052 else if (entry1.getEntryId() > entry2.getEntryId()) {
053 value = 1;
054 }
055 }
056
057 if (_ascending) {
058 return value;
059 }
060 else {
061 return -value;
062 }
063 }
064
065 @Override
066 public String getOrderBy() {
067 if (_ascending) {
068 return ORDER_BY_ASC;
069 }
070 else {
071 return ORDER_BY_DESC;
072 }
073 }
074
075 @Override
076 public String[] getOrderByFields() {
077 return ORDER_BY_FIELDS;
078 }
079
080 @Override
081 public boolean isAscending() {
082 return _ascending;
083 }
084
085 private boolean _ascending;
086
087 }