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// $Id$
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/**
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* Copyright (C) 2016 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.utility;
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import java.util.Comparator;
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import java.util.Set;
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import eu.etaxonomy.cdm.api.service.DistributionNodeByAreaLabelComparator;
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import eu.etaxonomy.cdm.common.TreeNode;
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import eu.etaxonomy.cdm.model.description.Distribution;
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import eu.etaxonomy.cdm.model.location.NamedArea;
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/**
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* Enumeration that defines the ordering method for distribution trees.
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*
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* @author a.mueller
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* @date 04.04.2016
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*
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*/
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public enum DistributionOrder {
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LABEL,
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AREA_ORDER;
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/**
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* Returns a comparator that implements the given distribution order.
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* @return
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*/
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public Comparator<TreeNode<Set<Distribution>, NamedArea>> getComparator() {
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if (this == LABEL){
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return new DistributionNodeByAreaLabelComparator();
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}else if (this == AREA_ORDER){
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return new DistributionNodeByAreaOrderComparator();
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}else{
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throw new IllegalStateException("Comparator is not available for DistributionOrder '" + this.name() + "'");
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}
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}
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/**
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* The default distribution order. Currently this is {@link DistributionOrder#LABEL}
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* @return the default distribution order.
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*/
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public static DistributionOrder getDefault() {
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return LABEL;
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}
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}
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