Java tutorial
/* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package net.rrm.ehour.sort; import net.rrm.ehour.domain.User; import org.apache.commons.lang.builder.CompareToBuilder; import java.util.Comparator; public class UserComparator implements Comparator<User> { private boolean firstNameFirst; public UserComparator(boolean firstNameFirst) { this.firstNameFirst = firstNameFirst; } public int compare(User o1, User o2) { if (firstNameFirst) { return new CompareToBuilder().append(o1.getFirstName(), o2.getFirstName()) .append(o1.getLastName(), o2.getLastName()).toComparison(); } else { return new CompareToBuilder().append(o1.getLastName(), o2.getLastName()) .append(o1.getFirstName(), o2.getFirstName()).toComparison(); } } }