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 final String ORDER_BY_ASC =
027 "BlogsEntry.displayDate ASC, BlogsEntry.entryId ASC";
028
029 public static final String[] ORDER_BY_CONDITION_FIELDS = {"displayDate"};
030
031 public static final String ORDER_BY_DESC =
032 "BlogsEntry.displayDate DESC, BlogsEntry.entryId DESC";
033
034 public static final String[] ORDER_BY_FIELDS = {"displayDate", "entryId"};
035
036 public EntryDisplayDateComparator() {
037 this(false);
038 }
039
040 public EntryDisplayDateComparator(boolean ascending) {
041 _ascending = ascending;
042 }
043
044 @Override
045 public int compare(Object obj1, Object obj2) {
046 BlogsEntry entry1 = (BlogsEntry)obj1;
047 BlogsEntry entry2 = (BlogsEntry)obj2;
048
049 int value = DateUtil.compareTo(
050 entry1.getDisplayDate(), entry2.getDisplayDate());
051
052 if (value == 0) {
053 if (entry1.getEntryId() < entry2.getEntryId()) {
054 value = -1;
055 }
056 else if (entry1.getEntryId() > entry2.getEntryId()) {
057 value = 1;
058 }
059 }
060
061 if (_ascending) {
062 return value;
063 }
064 else {
065 return -value;
066 }
067 }
068
069 @Override
070 public String getOrderBy() {
071 if (_ascending) {
072 return ORDER_BY_ASC;
073 }
074 else {
075 return ORDER_BY_DESC;
076 }
077 }
078
079 @Override
080 public String[] getOrderByConditionFields() {
081 return ORDER_BY_CONDITION_FIELDS;
082 }
083
084 @Override
085 public String[] getOrderByFields() {
086 return ORDER_BY_FIELDS;
087 }
088
089 @Override
090 public boolean isAscending() {
091 return _ascending;
092 }
093
094 private boolean _ascending;
095
096 }