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annotate src/main/java/de/mpiwg/web/books/SortBooksByDate.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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1 package de.mpiwg.web.books;
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2
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3 import java.util.Comparator;
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6 import de.mpiwg.gazetteer.db.DBBook;
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9 public class SortBooksByDate implements Comparator<DBBook>{
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11 public int compare(DBBook o1, DBBook o2) {
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12
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13 if(o1.getCurrentSectionVersion() == null && o2.getCurrentSectionVersion() == null) {
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14 return o1.getId().compareTo(o2.getId());
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15 } else if (o1.getCurrentSectionVersion() == null) {
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16 return -1;
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17 } else if (o2.getCurrentSectionVersion() == null){
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18 return 1;
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19 } else {
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20 return o1.getCurrentSectionVersion().getDate().compareTo(o2.getCurrentSectionVersion().getDate());
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21 }
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23 }
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25 }