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/**
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* Copyright (C) 2007 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.model.description;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.UUID;
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import javax.persistence.Entity;
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import javax.xml.bind.annotation.XmlAccessType;
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import javax.xml.bind.annotation.XmlAccessorType;
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import javax.xml.bind.annotation.XmlRootElement;
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import javax.xml.bind.annotation.XmlType;
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import org.apache.log4j.Logger;
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import org.hibernate.envers.Audited;
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import eu.etaxonomy.cdm.model.common.Language;
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import eu.etaxonomy.cdm.model.term.DefinedTermBase;
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import eu.etaxonomy.cdm.model.term.TermType;
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import eu.etaxonomy.cdm.model.term.TermVocabulary;
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/**
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 * This class represents measurement units such as "centimeter" or "degree
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 * celsius".
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 *
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 * @author m.doering
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 * @since 08-Nov-2007 13:06:34
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 */
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@XmlAccessorType(XmlAccessType.FIELD)
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@XmlType(name = "MeasurementUnit")
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@XmlRootElement(name = "MeasurementUnit")
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@Entity
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//@Indexed disabled to reduce clutter in indexes, since this type is not used by any search
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//@Indexed(index = "eu.etaxonomy.cdm.model.term.DefinedTermBase")
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@Audited
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public class MeasurementUnit extends DefinedTermBase<MeasurementUnit> {
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	private static final long serialVersionUID = 4904519152652248312L;
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	@SuppressWarnings("unused")
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	private static final Logger logger = Logger.getLogger(MeasurementUnit.class);
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	protected static Map<UUID, MeasurementUnit> termMap = null;
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//********************************** Constructor *******************************************************************/
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	//for hibernate use only
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	@Deprecated
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	protected MeasurementUnit(){
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		super(TermType.MeasurementUnit);
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	}
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	/**
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	 * Creates a new measurement unit with a description
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	 * (in the {@link Language#DEFAULT() default language}), a label and a label abbreviation.
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	 *
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	 * @param	term  		 the string (in the default language) describing the
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	 * 						 new measurement unit to be created
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	 * @param	label  		 the string identifying the new measurement unit
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	 * 						 to be created
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	 * @param	labelAbbrev  the string identifying (in abbreviated form) the
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	 * 						 new measurement unit to be created
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	 * @see 				 #NewInstance()
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	 */
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	private MeasurementUnit(String term, String label, String labelAbbrev) {
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		super(TermType.MeasurementUnit, term, label, labelAbbrev);
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	}
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	/**
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	 * Creates a new empty measurement unit instance.
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	 *
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	 * @see #MeasurementUnit(String, String, String)
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	 */
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	public static MeasurementUnit NewInstance(){
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		return new MeasurementUnit();
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	}
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	/**
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	 * Creates a new empty measurement unit instance.
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	 *
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	 * @see #MeasurementUnit(String, String, String)
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	 */
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	public static MeasurementUnit NewInstance(String term, String label, String labelAbbrev){
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		return new MeasurementUnit(term, label, labelAbbrev);
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	}
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	@Override
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	public void resetTerms(){
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		termMap = null;
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	}
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	@Override
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	protected void setDefaultTerms(TermVocabulary<MeasurementUnit> termVocabulary) {
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		termMap = new HashMap<>();
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		for (MeasurementUnit term : termVocabulary.getTerms()) {
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			termMap.put(term.getUuid(), term);
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		}
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	}
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}
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