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/**
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* Copyright (C) 2017 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.service;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.UUID;
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import org.apache.log4j.Logger;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Scope;
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import org.springframework.stereotype.Repository;
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import org.springframework.transaction.annotation.Transactional;
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import com.vaadin.data.Property.ValueChangeListener;
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import com.vaadin.ui.AbstractField;
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import com.vaadin.ui.Field;
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import eu.etaxonomy.cdm.api.service.INameService;
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import eu.etaxonomy.cdm.api.service.pager.Pager;
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import eu.etaxonomy.cdm.api.utility.TaxonNamePartsFilter;
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import eu.etaxonomy.cdm.model.name.Rank;
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import eu.etaxonomy.cdm.model.name.TaxonName;
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import eu.etaxonomy.cdm.persistence.dto.TaxonNameParts;
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import eu.etaxonomy.cdm.persistence.query.MatchMode;
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import eu.etaxonomy.cdm.persistence.query.OrderHint;
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/**
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* IMPORTANT !!!
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*
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* The string representations returned as rankSpecificNamePart must be unique in the database since these are being used as weak references between e.g.
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* genus name and the TaxonName entity for this genus.
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*
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* @author a.kohlbecker
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* @since Jun 7, 2017
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*
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*/
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@Scope("prototype")
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@Repository
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public class TaxonNameStringFilterablePagingProvider implements ITaxonNameStringFilterablePagingProvider {
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private static final List<String> DEFAULT_INIT_STRATEGY = Arrays.asList("$");
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private static final Logger logger = Logger.getLogger(TaxonNameStringFilterablePagingProvider.class);
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private int pageSize = 20;
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@Autowired
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private INameService service;
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private MatchMode matchMode = MatchMode.BEGINNING;
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private List<OrderHint> orderHints = OrderHint.ORDER_BY_TITLE_CACHE.asList();
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List<String> initStrategy = DEFAULT_INIT_STRATEGY;
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private TaxonNamePartsFilter namePartsFilter = new TaxonNamePartsFilter();
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private Map<AbstractField<String>, ValueChangeListener> registeredToFields = new HashMap<>();
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private Map<String, UUID> lastPagedEntityUUIDs;
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public TaxonNameStringFilterablePagingProvider() {
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this(Rank.GENUS(), null);
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}
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/**
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public TaxonNameStringFilterablePagingProvider(INameService service, Rank rank) {
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this(service, rank, null);
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}
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*/
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private TaxonNameStringFilterablePagingProvider(Rank rank, MatchMode matchMode) {
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super();
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if(matchMode != null){
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this.matchMode = matchMode;
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}
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setRankFilter(rank);
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}
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/**
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* @param rank
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*/
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@Override
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public void setRankFilter(Rank rank) {
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namePartsFilter.setRank(rank);
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}
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@Override
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public void listenToFields(AbstractField<String> genusOrUninomialField, AbstractField<String> infraGenericEpithetField,
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AbstractField<String> specificEpithetField, AbstractField<String> infraSpecificEpithetField){
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unlistenAllFields();
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registerNullSave(genusOrUninomialField, e -> namePartsFilter.setGenusOrUninomial(genusOrUninomialField.getValue()));
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registerNullSave(infraGenericEpithetField, e -> namePartsFilter.setGenusOrUninomial(infraGenericEpithetField.getValue()));
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registerNullSave(specificEpithetField, e -> namePartsFilter.setGenusOrUninomial(specificEpithetField.getValue()));
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registerNullSave(infraSpecificEpithetField, e -> namePartsFilter.setGenusOrUninomial(infraSpecificEpithetField.getValue()));
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}
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/**
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*
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*/
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@Override
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public void unlistenAllFields() {
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for(AbstractField<String> f : registeredToFields.keySet()){
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f.removeValueChangeListener(registeredToFields.get(f));
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}
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registeredToFields.clear();
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}
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public void replaceFields(AbstractField<String> unlistenField, AbstractField<String> listenToField) throws UnknownFieldException{
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if(registeredToFields.containsKey(unlistenField)){
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ValueChangeListener listener = registeredToFields.get(unlistenField);
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unlistenField.removeValueChangeListener(listener);
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registeredToFields.remove(unlistenField);
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registerNullSave(listenToField, listener);
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} else {
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throw new UnknownFieldException();
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}
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}
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@Override
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public void updateFromFields(){
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for(AbstractField<String> f : registeredToFields.keySet()){
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ValueChangeListener listener = registeredToFields.get(f);
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listener.valueChange(new Field.ValueChangeEvent(f));
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}
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}
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/**
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* @param genusOrUninomialField
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*/
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protected void registerNullSave(AbstractField<String> field, ValueChangeListener listener) {
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if(field != null){
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registeredToFields.put(field, listener);
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field.addValueChangeListener(listener);
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}
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}
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/**
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* @return the matchMode
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*/
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public MatchMode getMatchMode() {
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return matchMode;
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}
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/**
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* @param matchMode the matchMode to set
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*/
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public void setMatchMode(MatchMode matchMode) {
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this.matchMode = matchMode;
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}
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/**
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* @return the orderHints
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*/
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protected List<OrderHint> getOrderHints() {
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return orderHints;
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}
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/**
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* @param orderHints the orderHints to set
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*/
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protected void setOrderHints(List<OrderHint> orderHints) {
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this.orderHints = orderHints;
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}
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public TaxonNamePartsFilter getFilter(){
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return namePartsFilter;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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@Transactional(readOnly=true)
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public List<String> findEntities(int firstRow, String filter) {
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Integer pageIndex = firstRow / pageSize;
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Pager<TaxonNameParts> taxonNamePager = service.findTaxonNameParts(namePartsFilter, filter, pageSize, pageIndex, orderHints);
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if(logger.isTraceEnabled()){
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logger.trace("findEntities() - page: " + taxonNamePager.getCurrentIndex() + "/" + taxonNamePager.getPagesAvailable() + " totalRecords: " + taxonNamePager.getCount() + "\n" + taxonNamePager.getRecords());
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}
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List<String> namePartStrings = new ArrayList<>(taxonNamePager.getRecords().size());
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lastPagedEntityUUIDs = new HashMap<>(taxonNamePager.getRecords().size());
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for(TaxonNameParts tnp : taxonNamePager.getRecords()){
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String rankSpecificNamePart = tnp.rankSpecificNamePart();
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String namePartKey = rankSpecificNamePart;
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if(lastPagedEntityUUIDs.containsKey(namePartKey)){
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namePartKey = rankSpecificNamePart + " DUPLICATE[" + tnp.getTaxonNameUuid() + "]";
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}
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namePartStrings.add(namePartKey);
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lastPagedEntityUUIDs.put(namePartKey, tnp.getTaxonNameUuid());
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}
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return namePartStrings;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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@Transactional(readOnly=true)
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public int size(String filter) {
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Pager<TaxonNameParts> taxonNamePager = service.findTaxonNameParts(namePartsFilter, filter, 1, 0, null);
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if(logger.isTraceEnabled()){
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logger.trace("size() - count: " + taxonNamePager.getCount().intValue());
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}
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return taxonNamePager.getCount().intValue();
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}
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/**
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* @return the pageSize
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*/
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@Override
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public int getPageSize() {
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return pageSize;
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}
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/**
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* @param pageSize the pageSize to set
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*/
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public void setPageSize(int pageSize) {
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this.pageSize = pageSize;
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}
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/**
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* @return the lastPagedEntityUUIDs
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*/
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public Map<String, UUID> getLastPagedEntityUUIDs() {
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return lastPagedEntityUUIDs;
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}
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public class UnknownFieldException extends Exception {
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private static final long serialVersionUID = 1L;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public UUID idFor(String stringRepresentation) {
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if(lastPagedEntityUUIDs == null){
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findEntities(0, stringRepresentation);
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}
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return lastPagedEntityUUIDs.get(stringRepresentation);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void clearIdCache() {
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lastPagedEntityUUIDs = null;
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}
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/**
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* @param asList
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* @return
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*/
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@Override
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public void excludeNames(TaxonName ... excludedTaxonNames) {
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namePartsFilter.getExludedNamesUuids();
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for(TaxonName n : excludedTaxonNames){
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namePartsFilter.getExludedNamesUuids().add(n.getUuid());
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}
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}
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}
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