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/**
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* Copyright (C) 2020 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.common;
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import java.util.Comparator;
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/**
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* @author a.mueller
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* @since 10.01.2020
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*/
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public class StringComparator implements Comparator<String> {
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public static final StringComparator Instance = new StringComparator();
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@Override
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public int compare(String str1, String str2) {
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if (str1 == str2) {
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return 0;
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}
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if (str1 == null) {
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return -1;
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}
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if (str2 == null) {
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return 1;
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}
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return str1.compareTo(str2);
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}
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}
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