001
014
015 package com.liferay.portlet.journal.util.comparator;
016
017 import com.liferay.portal.kernel.util.OrderByComparator;
018 import com.liferay.portal.kernel.util.StringUtil;
019 import com.liferay.portlet.journal.model.JournalArticle;
020
021
024 public class ArticleIDComparator extends OrderByComparator {
025
026 public static final String ORDER_BY_ASC =
027 "JournalArticle.articleId ASC, JournalArticle.version ASC";
028
029 public static final String ORDER_BY_DESC =
030 "JournalArticle.articleId DESC, JournalArticle.version DESC";
031
032 public static final String[] ORDER_BY_FIELDS = {"articleId", "version"};
033
034 public ArticleIDComparator() {
035 this(false);
036 }
037
038 public ArticleIDComparator(boolean ascending) {
039 _ascending = ascending;
040 }
041
042 @Override
043 public int compare(Object obj1, Object obj2) {
044 JournalArticle article1 = (JournalArticle)obj1;
045 JournalArticle article2 = (JournalArticle)obj2;
046
047 String articleId1 = StringUtil.toLowerCase(article1.getArticleId());
048 String articleId2 = StringUtil.toLowerCase(article2.getArticleId());
049
050 int value = articleId1.compareTo(articleId2);
051
052 if (value == 0) {
053 if (article1.getVersion() < article2.getVersion()) {
054 value = -1;
055 }
056 else if (article1.getVersion() > article2.getVersion()) {
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[] getOrderByFields() {
081 return ORDER_BY_FIELDS;
082 }
083
084 @Override
085 public boolean isAscending() {
086 return _ascending;
087 }
088
089 private boolean _ascending;
090
091 }