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/**
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* Copyright (C) 2009 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.taxeditor.model;
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import java.util.Comparator;
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import eu.etaxonomy.cdm.model.common.DefinedTermBase;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* Implements a {@link Comparator} for {@link DefinedTermBase} objects based on the term's label.
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* The compare algorithm compares a term's label. Example: If used on an unsorted list of terms, the
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* list will be alphabetically sorted by label afterwards.
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*
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* @author n.hoffmann
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* @date Jan 18, 2012
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*
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*/
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public class DefaultTermComparator<T extends DefinedTermBase> implements Comparator<T> {
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@Override
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public int compare(T o1, T o2) {
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if (o1 == o2){
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return 0;
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}
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if (o1 == null){
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return -1;
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}
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if (o2 == null){
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return 1;
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}
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String label1 = o1.getLabel(CdmStore.getDefaultLanguage()) != null ? o1.getLabel(CdmStore.getDefaultLanguage()) : o1.getTitleCache();
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String label2 = o2.getLabel(CdmStore.getDefaultLanguage()) != null ? o2.getLabel(CdmStore.getDefaultLanguage()) : o2.getTitleCache();
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return label1.compareTo(label2);
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}
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};
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