package de.mpiwg.web.branch;

import java.util.Comparator;

import de.mpiwg.gazetteer.bo.LGBranch;


public class SortBranchByBookId implements Comparator<LGBranch>{
	
	public int compare(LGBranch o1, LGBranch o2) {
		if(o1 == null || o2 == null){
			return o1.getId().compareTo(o2.getId());
		}
		return o1.getBook().getId().compareTo(o2.getBook().getId());
	}

}