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package com.greenpepper.repository;

import com.greenpepper.shaded.com.google.common.collect.TreeTraverser;

import java.util.*;


/**
 * DocumentNode class.
 *
 * @author oaouattara
 * @version $Id: $Id
 */
public class DocumentNode implements Comparable, Marshalizable
{

    /**
     * Allows retrieval of an Iterator using DocumentNode hierarchy.
     *
     * @see TreeTraverser#preOrderTraversal(Object)
     * @see TreeTraverser#postOrderTraversal(Object)
     */
    public static final TreeTraverser  traverser = new TreeTraverser() {
        @Override
        public Iterable children(DocumentNode root) {
            return root.getChildren();
        }
    };

    /** Constant NODE_TITLE_INDEX=0 */
    final static int NODE_TITLE_INDEX = 0;
    /** Constant NODE_EXECUTABLE_INDEX=1 */
    final static int NODE_EXECUTABLE_INDEX = 1;
    /** Constant NODE_CAN_BE_IMPLEMENTED_INDEX=2 */
    final static int NODE_CAN_BE_IMPLEMENTED_INDEX = 2;
    /** Constant NODE_CHILDREN_INDEX=3 */
    private final static int NODE_CHILDREN_INDEX = 3;

    /**
     * Note: this position is used for something else in a referenceNode
     */
    private static final int NODE_URL_INDEX = 4;

    private String title;
    private boolean executable;
    private boolean canBeImplemented;

    private List children = new ArrayList();
    private String URL;

    /**
     * Constructor for DocumentNode.
     *
     * @param title a {@link java.lang.String} object.
     */
    public DocumentNode(String title)
    {
        this.title = title;
    }

    /**
     * Getter for the field children.
     *
     * @return a {@link java.util.List} object.
     */
    public List getChildren()
    {
        return children;
    }

    /**
     * Getter for the field title.
     *
     * @return a {@link java.lang.String} object.
     */
    public String getTitle()
    {
        return title;
    }

    /**
     * isExecutable.
     *
     * @return a boolean.
     */
    public boolean isExecutable()
    {
        return executable;
    }

    /**
     * setIsExecutable.
     *
     * @param executable a boolean.
     */
    public void setIsExecutable(boolean executable)
    {
        this.executable =  executable;
    }

    /**
     * canBeImplemented.
     *
     * @return a boolean.
     */
    public boolean canBeImplemented()
    {
        return canBeImplemented;
    }

    /**
     * Setter for the field canBeImplemented.
     *
     * @param canBeImplemented a boolean.
     */
    public void setCanBeImplemented(boolean canBeImplemented)
    {
        this.canBeImplemented =  canBeImplemented;
    }

    public void setURL(String URL) {
        this.URL = URL;
    }

    public String getURL() {
        return URL;
    }

    /**
     * addChildren.
     *
     * @param child a {@link DocumentNode} object.
     */
    public void addChildren(DocumentNode child)
    {
        children.add(child);
    }

    /**
     * hasChildren.
     *
     * @return a boolean.
     */
    public boolean hasChildren()
    {
        return children.size() > 0;
    }

    /**
     * marshallize.
     *
     * @return a {@link java.util.Vector} object.
     */
    public Vector