root/trunk/cdmlib/cdmlib-model/src/main/java/eu/etaxonomy/cdm/model/occurrence/DerivedUnit.java

/**
* Copyright (C) 2007 EDIT
* European Distributed Institute of Taxonomy 
* http://www.e-taxonomy.eu
* 
* The contents of this file are subject to the Mozilla Public License Version 1.1
* See LICENSE.TXT at the top of this package for the full license terms.
*/

package eu.etaxonomy.cdm.model.occurrence;


import org.apache.log4j.Logger;
import org.hibernate.envers.Audited;
import org.hibernate.search.annotations.Indexed;
import org.springframework.beans.factory.annotation.Configurable;

import eu.etaxonomy.cdm.strategy.cache.common.IIdentifiableEntityCacheStrategy;
import eu.etaxonomy.cdm.strategy.cache.common.IdentifiableEntityDefaultCacheStrategy;

import javax.persistence.*;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

/**
 * @author p.kelbert
 */
@XmlAccessorType(XmlAccessType.FIELD)
@XmlRootElement(name = "DerivedUnit")
@Entity
@Indexed(index = "eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase")
@Audited
@Configurable
public class DerivedUnit extends DerivedUnitBase<IIdentifiableEntityCacheStrategy<DerivedUnit>> implements Cloneable{
        /**
         * 
         */
        private static final long serialVersionUID = 1L;
        private static final Logger logger = Logger.getLogger(DerivedUnit.class);
        
        /**
         * Factory method
         * @return
         */
        public static DerivedUnit NewInstance(){
                return new DerivedUnit();
        }
        
        /**
         * Constructor
         */
        protected DerivedUnit() {
                super();
                this.cacheStrategy = new IdentifiableEntityDefaultCacheStrategy<DerivedUnit>();
        }
        
//*********** CLONE **********************************/ 
        
        /** 
         * Clones <i>this</i> observation. This is a shortcut that enables to
         * create a new instance that differs only slightly from <i>this</i> observation
         * by modifying only some of the attributes.<BR>
         * This method overrides the clone method from {@link DerivedUnitBase DerivedUnitBase}.
         * 
         * @see DerivedUnitBase#clone()
         * @see eu.etaxonomy.cdm.model.media.IdentifiableMediaEntity#clone()
         * @see java.lang.Object#clone()
         */
        @Override
        public DerivedUnit clone(){
                try{
                        DerivedUnit result = (DerivedUnit)super.clone();
                        //no changes to: -
                        return result;
                } catch (CloneNotSupportedException e) {
                        logger.warn("Object does not implement cloneable");
                        e.printStackTrace();
                        return null;
                }
        }

        
}