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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.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import javax.persistence.Entity;
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import javax.persistence.FetchType;
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import javax.persistence.JoinColumn;
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import javax.persistence.JoinTable;
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import javax.persistence.ManyToMany;
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import javax.persistence.ManyToOne;
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import javax.persistence.OneToMany;
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import javax.persistence.OrderBy;
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import javax.persistence.OrderColumn;
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import javax.persistence.Transient;
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import javax.validation.constraints.Size;
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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.XmlElement;
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import javax.xml.bind.annotation.XmlElementWrapper;
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import javax.xml.bind.annotation.XmlIDREF;
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import javax.xml.bind.annotation.XmlRootElement;
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import javax.xml.bind.annotation.XmlSchemaType;
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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.annotations.Cascade;
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import org.hibernate.annotations.CascadeType;
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import org.hibernate.annotations.Index;
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import org.hibernate.annotations.Table;
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import org.hibernate.envers.Audited;
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import eu.etaxonomy.cdm.model.common.ITreeNode;
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import eu.etaxonomy.cdm.model.common.VersionableEntity;
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/**
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* The class for tree nodes within a {@link FeatureTree feature tree} structure.
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* Feature nodes are the elementary components of such a tree since they might
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* be related to other nodes as a parent or as a child. A feature node belongs
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* at most to one feature tree. It cannot have more than one parent node but
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* may have several child nodes. Parent/child relations are bidirectional:
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* a node N1 is the parent of a node N2 if and only if the node N2 is a child of
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* the node N1.
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*
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* @author m.doering
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* @created 08-Nov-2007 13:06:16
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*/
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@SuppressWarnings("serial")
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@XmlAccessorType(XmlAccessType.FIELD)
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@XmlType(name = "FeatureNode", propOrder = {
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"featureTree",
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"feature",
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"parent",
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"treeIndex",
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"sortIndex",
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"children",
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"onlyApplicableIf",
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"inapplicableIf"
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})
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@XmlRootElement(name = "FeatureNode")
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@Entity
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@Audited
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@Table(appliesTo="FeatureNode", indexes = { @Index(name = "featureNodeTreeIndex", columnNames = { "treeIndex" }) })
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public class FeatureNode extends VersionableEntity implements ITreeNode<FeatureNode>, Cloneable {
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private static final Logger logger = Logger.getLogger(FeatureNode.class);
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//This is the main key a node belongs to. Although other keys may also reference
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//<code>this</code> node, a node usually belongs to a given key.
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@XmlElement(name = "FeatureTree")
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@XmlIDREF
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@XmlSchemaType(name = "IDREF")
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@ManyToOne(fetch = FetchType.LAZY)
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@Cascade({CascadeType.SAVE_UPDATE,CascadeType.MERGE, CascadeType.DELETE_ORPHAN}) //TODO this usage is incorrect, needed only for OneToMany, check why it is here, can it be removed??
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//TODO Val #3379
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// @NotNull
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private FeatureTree featureTree;
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@XmlElement(name = "Feature")
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@XmlIDREF
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@XmlSchemaType(name = "IDREF")
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@ManyToOne(fetch = FetchType.LAZY)
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private Feature feature;
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@XmlElement(name = "Parent")
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@XmlIDREF
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@XmlSchemaType(name = "IDREF")
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@ManyToOne(fetch = FetchType.LAZY, targetEntity=FeatureNode.class)
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@Cascade({CascadeType.SAVE_UPDATE,CascadeType.MERGE})
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@JoinColumn(name="parent_id")
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private FeatureNode parent;
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@XmlElement(name = "treeIndex")
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@Size(max=255)
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private String treeIndex;
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@XmlElementWrapper(name = "Children")
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@XmlElement(name = "Child")
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//see https://dev.e-taxonomy.eu/trac/ticket/3722
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@OrderColumn(name="sortIndex")
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@OrderBy("sortIndex")
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@OneToMany(fetch = FetchType.LAZY, mappedBy="parent")
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@Cascade({CascadeType.SAVE_UPDATE, CascadeType.MERGE})
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private List<FeatureNode> children = new ArrayList<FeatureNode>();
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//see https://dev.e-taxonomy.eu/trac/ticket/3722
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private Integer sortIndex;
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@XmlElementWrapper(name = "OnlyApplicableIf")
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@XmlElement(name = "OnlyApplicableIf")
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@XmlIDREF
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@XmlSchemaType(name="IDREF")
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@ManyToMany(fetch = FetchType.LAZY)
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@Cascade({CascadeType.SAVE_UPDATE,CascadeType.MERGE})
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@JoinTable(name="FeatureNode_DefinedTermBase_OnlyApplicable")
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private final Set<State> onlyApplicableIf = new HashSet<State>();
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@XmlElementWrapper(name = "InapplicableIf")
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@XmlElement(name = "InapplicableIf")
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@XmlIDREF
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@XmlSchemaType(name="IDREF")
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@ManyToMany(fetch = FetchType.LAZY)
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@Cascade({CascadeType.SAVE_UPDATE,CascadeType.MERGE})
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@JoinTable(name="FeatureNode_DefinedTermBase_InapplicableIf")
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private final Set<State> inapplicableIf = new HashSet<State>();
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// ***************************** FACTORY *********************************/
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/**
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* Creates a new empty feature node instance.
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*
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* @see #NewInstance(Feature)
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*/
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public static FeatureNode NewInstance(){
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return new FeatureNode();
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}
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/**
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* Creates a new feature node instance only with the given {@link Feature feature}
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* (without parent and children).
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*
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* @param feature the feature assigned to the new feature node
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* @see #NewInstance()
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*/
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public static FeatureNode NewInstance(Feature feature){
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FeatureNode result = new FeatureNode();
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result.setFeature(feature);
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return result;
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}
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// ******************** CONSTRUCTOR ***************************************/
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/**
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* Class constructor: creates a new empty feature node instance.
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*/
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protected FeatureNode() {
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super();
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}
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//*************************** TREE ************************************/
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public FeatureTree getFeatureTree() {
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return featureTree;
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}
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protected void setFeatureTree(FeatureTree featureTree) {
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this.featureTree = featureTree;
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}
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//** ********************** FEATURE ******************************/
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/**
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* Returns the {@link Feature feature} <i>this</i> feature node is based on.
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*/
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public Feature getFeature() {
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return feature;
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}
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/**
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* @see #getFeature()
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*/
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public void setFeature(Feature feature) {
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this.feature = feature;
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}
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//** ********************** PARENT ******************************/
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/**
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* Returns the feature node <i>this</i> feature node is a child of.
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*
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* @see #getChildNodes()
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*/
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@Override
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public FeatureNode getParent() {
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return parent;
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}
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/**
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* Assigns the given feature node as the parent of <i>this</i> feature node.
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* Due to bidirectionality this method must also add <i>this</i> feature node
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* to the list of children of the given parent.
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*
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* @param parent the feature node to be set as parent
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* @see #getParent()
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*/
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protected void setParent(FeatureNode parent) {
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this.parent = parent;
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}
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//** ********************** CHILDREN ******************************/
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/**
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* @deprecated for internal use only.
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*/
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//see #4278 , #4200
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@Deprecated
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protected void setSortIndex(Integer sortIndex) {
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this.sortIndex = sortIndex;
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}
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/**
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* Returns the (ordered) list of feature nodes which are children nodes of
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* <i>this</i> feature node.
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*/
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@Override
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public List<FeatureNode> getChildNodes() {
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return children;
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}
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/**
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* Adds the given feature node at the end of the list of children of
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* <i>this</i> feature node. Due to bidirectionality this method must also
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* assign <i>this</i> feature node as the parent of the given child.
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*
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* @param child the feature node to be added
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* @see #getChildNodes()
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* @see #setChildren(List)
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* @see #addChild(FeatureNode, int)
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* @see #removeChild(FeatureNode)
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* @see #removeChild(int)
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*/
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public void addChild(FeatureNode child){
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addChild(child, children.size());
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}
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/**
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* Inserts the given feature node in the list of children of <i>this</i> feature node
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* at the given (index + 1) position. If the given index is out of bounds
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* an exception will arise.<BR>
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* Due to bidirectionality this method must also assign <i>this</i> feature node
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* as the parent of the given child.
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*
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* @param child the feature node to be added
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* @param index the integer indicating the position at which the child
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* should be added
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* @see #getChildNodes()
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* @see #setChildren(List)
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* @see #addChild(FeatureNode)
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* @see #removeChild(FeatureNode)
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* @see #removeChild(int)
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*/
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public void addChild(FeatureNode child, int index){
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List<FeatureNode> children = this.getChildNodes();
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if (index < 0 || index > children.size() + 1){
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throw new IndexOutOfBoundsException("Wrong index: " + index);
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}
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if (child.getParent() != null){
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child.getParent().removeChild(child);
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}
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child.setParent(this);
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child.setFeatureTree(this.getFeatureTree());
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children.add(index, child);
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//TODO workaround (see sortIndex doc)
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for(int i = 0; i < children.size(); i++){
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children.get(i).setSortIndex(i);
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}
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child.setSortIndex(index);
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}
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/**
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* Removes the given feature node from the list of {@link #getChildNodes() children}
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* of <i>this</i> feature node.
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*
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* @param child the feature node which should be removed
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* @see #getChildNodes()
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* @see #addChild(FeatureNode, int)
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* @see #addChild(FeatureNode)
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* @see #removeChild(int)
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*/
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public void removeChild(FeatureNode child){
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int index = children.indexOf(child);
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if (index >= 0){
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removeChild(index);
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}
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}
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/**
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* Removes the feature node placed at the given (index + 1) position from
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* the list of {@link #getChildNodes() children} of <i>this</i> feature node.
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* If the given index is out of bounds no child will be removed.
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*
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* @param index the integer indicating the position of the feature node to
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* be removed
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* @see #getChildNodes()
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* @see #addChild(FeatureNode, int)
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* @see #addChild(FeatureNode)
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* @see #removeChild(FeatureNode)
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*/
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public void removeChild(int index){
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FeatureNode child = children.get(index);
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if (child != null){
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children.remove(index);
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child.setParent(null);
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//TODO workaround (see sortIndex doc)
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for(int i = 0; i < children.size(); i++){
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FeatureNode childAt = children.get(i);
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childAt.setSortIndex(i);
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}
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child.setSortIndex(null);
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}
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}
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/**
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* Returns the feature node placed at the given (childIndex + 1) position
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* within the list of {@link #getChildNodes() children} of <i>this</i> feature node.
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* If the given index is out of bounds no child will be returned.
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*
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* @param childIndex the integer indicating the position of the feature node
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* @see #getChildNodes()
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* @see #addChild(FeatureNode, int)
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* @see #removeChild(int)
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*/
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public FeatureNode getChildAt(int childIndex) {
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return children.get(childIndex);
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}
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/**
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* Returns the number of children nodes of <i>this</i> feature node.
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*
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* @see #getChildNodes()
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*/
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@Transient
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public int getChildCount() {
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return children.size();
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}
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/**
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* Returns the integer indicating the position of the given feature node
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* within the list of {@link #getChildNodes() children} of <i>this</i> feature node.
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* If the list does not contain this node then -1 will be returned.
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*
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* @param node the feature node the position of which is being searched
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* @see #addChild(FeatureNode, int)
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* @see #removeChild(int)
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*/
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public int getIndex(FeatureNode node) {
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if (! children.contains(node)){
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return -1;
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}else{
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return children.indexOf(node);
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}
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}
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/**
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* Returns the boolean value indicating if <i>this</i> feature node has
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* children (false) or not (true). A node without children is at the
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* bottommost level of a tree and is called a leaf.
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*
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* @see #getChildNodes()
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* @see #getChildCount()
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*/
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@Transient
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public boolean isLeaf() {
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return children.size() < 1;
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}
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/**
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* Whether <code>this</code> node is the root node of the associated {@link FeatureTree feature tree}.
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*
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* @return <code>true</code> if <code>this</code> is the feature trees root node, <code>false</code> if not
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*/
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@Transient
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public boolean isRoot(){
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if(getFeatureTree() != null){
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return this.equals(getFeatureTree().getRoot());
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}
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return false;
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}
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/**
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* Returns the set of {@link State states} implying rendering the
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* concerned {@link Feature feature} applicable.
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* If at least one state is present in this set, in a given description
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* the {@link Feature feature} in <i>this</i> feature node is inapplicable
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* unless any of the listed controlling states is present in the parent
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* {@link Feature feature} description element {@link CategoricalData
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* categoricalData}.
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* This attribute is not equivalent to onlyApplicableIf in SDD as it is
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* attached directly to the child feature rather than the parent, which
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* allow having different applicable states for each child feature.
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*
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* @see #addApplicableState(State)
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* @see #removeApplicableState(State)
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*/
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public Set<State> getOnlyApplicableIf() {
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return onlyApplicableIf;
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}
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/**
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* Adds an existing {@link State applicable state} to the set of
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* {@link #getOnlyApplicableIf() applicable states} described in
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* <i>this</i> feature node.<BR>
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*
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* @param applicableState the applicable state to be added to <i>this</i> feature node
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* @see #getApplicableState()
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*/
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public void addApplicableState(State applicableState) {
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this.onlyApplicableIf.add(applicableState);
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}
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/**
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* Removes one element from the set of
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* {@link #getOnlyApplicableIf() applicable states} described in
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* <i>this</i> feature node.<BR>
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*
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* @param applicableState the applicable state which should be removed
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* @see #getApplicableState()
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* @see #addApplicableState(State)
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*/
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439
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public void removeApplicableState(State applicableState) {
|
440
|
this.onlyApplicableIf.remove(applicableState);
|
441
|
}
|
442
|
|
443
|
/**
|
444
|
* Returns the set of {@link State states} implying rendering the
|
445
|
* concerned {@link Feature feature} inapplicable.
|
446
|
* If at least one {@link State inapplicable state} is defined in the set,
|
447
|
* in a given description the {@link Feature feature} attribute of
|
448
|
* <i>this</i> feature node is inapplicable when any of the listed
|
449
|
* controlling states is present.
|
450
|
* This attribute is not equivalent to inapplicableIf in SDD as it is
|
451
|
* attached directly to the child feature rather than the parent, which
|
452
|
* allow having different inapplicability rules for each child feature.
|
453
|
*
|
454
|
* @see #addInapplicableState(State)
|
455
|
* @see #removeInapplicableState(State)
|
456
|
*/
|
457
|
public Set<State> getInapplicableIf() {
|
458
|
return inapplicableIf;
|
459
|
}
|
460
|
|
461
|
/**
|
462
|
* Adds an existing {@link State inapplicable state} to the set of
|
463
|
* {@link #getInapplicableIf() inapplicable states} described in
|
464
|
* <i>this</i> feature node.<BR>
|
465
|
*
|
466
|
* @param inapplicableState the inapplicable state to be added to <i>this</i> feature node
|
467
|
* @see #getInapplicableState()
|
468
|
*/
|
469
|
public void addInapplicableState(State inapplicableState) {
|
470
|
this.inapplicableIf.add(inapplicableState);
|
471
|
}
|
472
|
|
473
|
/**
|
474
|
* Removes one element from the set of
|
475
|
* {@link #getInapplicableIf() inapplicable states} described in
|
476
|
* <i>this</i> feature node.<BR>
|
477
|
*
|
478
|
* @param inapplicableState the inapplicable state which should be removed
|
479
|
* @see #getInapplicableState()
|
480
|
* @see #addInapplicableState(State)
|
481
|
*/
|
482
|
public void removeInapplicableState(State inapplicableState) {
|
483
|
this.inapplicableIf.remove(inapplicableState);
|
484
|
}
|
485
|
|
486
|
// //** ********************** QUESTIONS ******************************/
|
487
|
//
|
488
|
// /**
|
489
|
// * Returns the {@link Representation question} formulation that
|
490
|
// * corresponds to <i>this</i> feature node and the corresponding
|
491
|
// * {@link Feature feature} in case it is part of a
|
492
|
// * {@link PolytomousKey polytomous key}.
|
493
|
// */
|
494
|
// public Set<Representation> getQuestions() {
|
495
|
// return this.questions;
|
496
|
// }
|
497
|
//
|
498
|
// public void addQuestion(Representation question) {
|
499
|
// this.questions.add(question);
|
500
|
// }
|
501
|
//
|
502
|
// public void removeQuestion(Representation question) {
|
503
|
// this.questions.remove(question);
|
504
|
// }
|
505
|
//
|
506
|
// @Transient
|
507
|
// public Representation getQuestion(Language lang) {
|
508
|
// for (Representation question : questions){
|
509
|
// Language reprLanguage = question.getLanguage();
|
510
|
// if (reprLanguage != null && reprLanguage.equals(lang)){
|
511
|
// return question;
|
512
|
// }
|
513
|
// }
|
514
|
// return null;
|
515
|
// }
|
516
|
|
517
|
/**
|
518
|
* Returns all features that are contained in this node or a child node
|
519
|
*
|
520
|
* @param featureNode
|
521
|
* @param features
|
522
|
* @return
|
523
|
*/
|
524
|
@Transient
|
525
|
public Set<Feature> getDistinctFeaturesRecursive(Set<Feature> features){
|
526
|
Feature feature = this.getFeature();
|
527
|
|
528
|
features.add(feature);
|
529
|
|
530
|
for(FeatureNode childNode : this.getChildNodes()){
|
531
|
features.addAll(childNode.getDistinctFeaturesRecursive(features));
|
532
|
}
|
533
|
|
534
|
return features;
|
535
|
}
|
536
|
|
537
|
public FeatureNode cloneDescendants(){
|
538
|
FeatureNode clone = (FeatureNode)this.clone();
|
539
|
FeatureNode childClone;
|
540
|
|
541
|
for(FeatureNode childNode : this.getChildNodes()){
|
542
|
childClone = (FeatureNode) childNode.clone();
|
543
|
for (FeatureNode childChild:childNode.getChildNodes()){
|
544
|
childClone.addChild(childChild.cloneDescendants());
|
545
|
}
|
546
|
clone.addChild(childClone);
|
547
|
|
548
|
}
|
549
|
return clone;
|
550
|
}
|
551
|
|
552
|
//*********************** CLONE ********************************************************/
|
553
|
|
554
|
/**
|
555
|
* Clones <i>this</i> FeatureNode. This is a shortcut that enables to create
|
556
|
* a new instance that differs only slightly from <i>this</i> FeatureNode by
|
557
|
* modifying only some of the attributes.
|
558
|
* The parent, the feature and the featureTree are the are the same as for the original feature node
|
559
|
* the children are removed
|
560
|
*
|
561
|
* @see eu.etaxonomy.cdm.model.common.VersionableEntity#clone()
|
562
|
* @see java.lang.Object#clone()
|
563
|
*/
|
564
|
@Override
|
565
|
public Object clone() {
|
566
|
FeatureNode result;
|
567
|
try {
|
568
|
result = (FeatureNode)super.clone();
|
569
|
result.children = new ArrayList<FeatureNode>();
|
570
|
return result;
|
571
|
}catch (CloneNotSupportedException e) {
|
572
|
logger.warn("Object does not implement cloneable");
|
573
|
e.printStackTrace();
|
574
|
return null;
|
575
|
}
|
576
|
|
577
|
|
578
|
|
579
|
}
|
580
|
|
581
|
// ********************** TREE NODE METHODS ******************************/
|
582
|
|
583
|
@Override
|
584
|
public String treeIndex() {
|
585
|
return this.treeIndex;
|
586
|
}
|
587
|
|
588
|
@Override
|
589
|
@Deprecated
|
590
|
public void setTreeIndex(String newTreeIndex) {
|
591
|
this.treeIndex = newTreeIndex;
|
592
|
}
|
593
|
|
594
|
|
595
|
@Override
|
596
|
@Deprecated
|
597
|
public int treeId() {
|
598
|
if (this.featureTree == null){
|
599
|
return -1;
|
600
|
}else{
|
601
|
return this.featureTree.getId();
|
602
|
}
|
603
|
}
|
604
|
|
605
|
|
606
|
}
|