package de.mpiwg.web.books;

import java.util.Comparator;

import de.mpiwg.gazetteer.db.DBBook;


public class SortBooksByStartYear implements Comparator<DBBook>{

	public int compare(DBBook o1, DBBook o2) {

		if(o1 == null || o2 == null){
			return o1.getName().compareTo(o2.getName());
		}
		
		return o1.getStart_year().compareTo(o2.getStart_year());
	}

}