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/**
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* Copyright (C) 2018 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.api.service.name;
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import java.util.Comparator;
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import eu.etaxonomy.cdm.api.service.name.TypeDesignationSetManager.NullTypeDesignationStatus;
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import eu.etaxonomy.cdm.model.name.TypeDesignationStatusBase;
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/**
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* @author pplitzner
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* @since May 3, 2018
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*
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*/
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public class TypeDesignationStatusComparator implements Comparator<TypeDesignationStatusBase> {
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@SuppressWarnings("unchecked")
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@Override
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public int compare(TypeDesignationStatusBase o1, TypeDesignationStatusBase o2) {
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// fix inverted order of cdm terms by -1*
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if(o1 == null && o2 == null || o1 instanceof NullTypeDesignationStatus && o2 instanceof NullTypeDesignationStatus){
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return 0;
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}
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if(o1 == null || o1 instanceof NullTypeDesignationStatus){
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return -1;
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}
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if(o2 == null || o2 instanceof NullTypeDesignationStatus){
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return 1;
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}
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return -1 * o1.compareTo(o2);
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}
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}
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