com.liferay.portal.kernel.util.comparator.UserLastNameComparator.java Source code

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Here is the source code for com.liferay.portal.kernel.util.comparator.UserLastNameComparator.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.util.comparator;

import com.liferay.portal.kernel.model.User;
import com.liferay.portal.kernel.util.OrderByComparator;

/**
 * @author Brian Wing Shun Chan
 */
public class UserLastNameComparator extends OrderByComparator<User> {

    public static final String ORDER_BY_ASC = "lastName ASC, firstName ASC, middleName ASC";

    public static final String ORDER_BY_DESC = "lastName DESC, firstName DESC, middleName DESC";

    public static final String[] ORDER_BY_FIELDS = { "lastName", "firstName", "middleName" };

    public UserLastNameComparator() {
        this(false);
    }

    public UserLastNameComparator(boolean ascending) {
        _ascending = ascending;
    }

    @Override
    public int compare(User user1, User user2) {
        String lastName1 = user1.getLastName();
        String lastName2 = user2.getLastName();

        int value = lastName1.compareTo(lastName2);

        if (value == 0) {
            String firstName1 = user1.getFirstName();
            String firstName2 = user2.getFirstName();

            value = firstName1.compareTo(firstName2);
        }

        if (value == 0) {
            String middleName1 = user1.getMiddleName();
            String middleName2 = user2.getMiddleName();

            value = middleName1.compareTo(middleName2);
        }

        if (_ascending) {
            return value;
        }

        return -value;
    }

    @Override
    public String getOrderBy() {
        if (_ascending) {
            return ORDER_BY_ASC;
        }

        return ORDER_BY_DESC;
    }

    @Override
    public String[] getOrderByFields() {
        return ORDER_BY_FIELDS;
    }

    @Override
    public boolean isAscending() {
        return _ascending;
    }

    private final boolean _ascending;

}