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package eu.etaxonomy.cdm.vaadin.container;
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import java.util.HashSet;
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import java.util.Set;
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import com.vaadin.data.Item;
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import com.vaadin.data.util.HierarchicalContainer;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
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public class TaxonNodeContainer extends HierarchicalContainer {
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private static final long serialVersionUID = 102401340698963360L;
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public static final String LABEL = "titleCache";
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private Set<Object> itemCache = new HashSet<Object>();
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/**
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* Creates a new taxon node container
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* @param parentNode the parent node which will <b>not</b> be included
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* in the result but only its child nodes
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*/
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public TaxonNodeContainer(UuidAndTitleCache<TaxonNode> parentNode) {
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addContainerProperty(LABEL, String.class, "[no taxon]");
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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 Item addItem(Object itemId) {
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if(itemId instanceof UuidAndTitleCache){
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UuidAndTitleCache<TaxonNode> uuidAndTitleCache = (UuidAndTitleCache<TaxonNode>) itemId;
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if(!itemCache.contains(uuidAndTitleCache.getId())){
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Item item = super.addItem(itemId);
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item.getItemProperty(TaxonNodeContainer.LABEL).setValue(uuidAndTitleCache.getTitleCache());
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return item;
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}
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}
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return null;
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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 boolean setParent(Object itemId, Object newParentId) {
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itemCache.add(((UuidAndTitleCache<TaxonNode>) itemId).getId());;
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return super.setParent(itemId, newParentId);
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}
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}
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