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comparison src/main/java/de/mpiwg/web/books/SortBooksByEditor.java @ 16:a7e9c1f8edb4

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new: sorting in books page, adding books package
author Zoe Hong <zhong@mpiwg-berlin.mpg.de>
date Mon, 01 Jun 2015 14:40:48 +0200
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15:d81a5401b9af 16:a7e9c1f8edb4
1 package de.mpiwg.web.books;
2
3 import java.util.Comparator;
4
5 import org.apache.log4j.Logger;
6
7 import de.mpiwg.gazetteer.db.DBBook;
8
9
10 public class SortBooksByEditor implements Comparator<DBBook>{
11
12 public int compare(DBBook o1, DBBook o2) {
13
14 if(o1.getCurrentSectionVersion() == null && o2.getCurrentSectionVersion() == null) {
15 return o1.getId().compareTo(o2.getId());
16 } else if (o1.getCurrentSectionVersion() == null) {
17 return -1;
18 } else if (o2.getCurrentSectionVersion() == null){
19 return 1;
20 } else {
21 return o1.getCurrentSectionVersion().getEditor().compareTo(o2.getCurrentSectionVersion().getEditor());
22 }
23 }
24
25 }