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<JournalArticle> {
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(JournalArticle article1, JournalArticle article2) {
044 String articleId1 = StringUtil.toLowerCase(article1.getArticleId());
045 String articleId2 = StringUtil.toLowerCase(article2.getArticleId());
046
047 int value = articleId1.compareTo(articleId2);
048
049 if (value == 0) {
050 if (article1.getVersion() < article2.getVersion()) {
051 value = -1;
052 }
053 else if (article1.getVersion() > article2.getVersion()) {
054 value = 1;
055 }
056 }
057
058 if (_ascending) {
059 return value;
060 }
061 else {
062 return -value;
063 }
064 }
065
066 @Override
067 public String getOrderBy() {
068 if (_ascending) {
069 return ORDER_BY_ASC;
070 }
071 else {
072 return ORDER_BY_DESC;
073 }
074 }
075
076 @Override
077 public String[] getOrderByFields() {
078 return ORDER_BY_FIELDS;
079 }
080
081 @Override
082 public boolean isAscending() {
083 return _ascending;
084 }
085
086 private final boolean _ascending;
087
088 }