Custom Icon In Tree Parent Node

I can't replace the default parent node icon. I'm able to
replace the child nodes. I've attached my code. Any
suggestions?

MyTreeCellRenderer extends DefaulTreeCellRenderer{
  public Component getTreeCellRendererComponent(
    JTree tree,
    Object value,
    boolean sel,
    boolean expanded,
    boolean leaf,
    int row,
    boolean hasFocus) {
    super.getTreeCellRendererComponent(
      tree, value, sel,
      expanded, leaf, row,
      hasFocus);
    //Do your condition on your value
    if( value ....){
     setIcon(myIcon);
    return this;
}

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    MyTreeCellRenderer extends DefaulTreeCellRenderer{
      public Component getTreeCellRendererComponent(
        JTree tree,
        Object value,
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        boolean expanded,
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  • Problem with trees(Duplication of the parent node in creation of  children)

    Hi guys i am experiencing a slight problem with the creation of trees.Here is a clear explanation of my program.I created a program that generates edges from a set of datapoints then use each and every edge that is generated to create multiple trees with the edge as the rootnode for each and every tree.Everything up to so far everything went well but the problem comes when i want the program to pick every single tree and traverse through the set of generated edges to create the children of a tree.What it does at the moment for each tree is returning the a duplication of the parent node as the child nodes and that is a problem.Can anyone related with this problem help.Your help will be appreciated.
    The code
    TreeNode class
    package SPO;
    import java.util.*;
    public class TreeNode
            Edge edge;
            TreeNode node;
         Vector childrens = new Vector();
            public TreeNode(Edge edge)
                    this.edge = edge;
            public synchronized  void insert(Edge edge)
                    if(edge.fromNode == this.edge.toNode)
                            if(node == null )
                                    node = new TreeNode(edge);
                                    childrens.add(node);
                            else
                        node.insert(edge);
                                    childrens.add(node);
    Tree class
    package SPO;
    import java.util.*;
    public class Tree
            TreeNode rootNode;
         public Tree()
                    rootNode = null;
            public Tree[]  createTrees(Vector initTrees,Vector edges)
                   Tree [] trees =  new Tree[initTrees.size()];
                   for(int c = 0;c < trees.length;c++)
                      trees[c] = (Tree)initTrees.elementAt(c);     
                   for(int i = 0;i < trees.length;i++)
                            for(int x = 0;x < edges.size();x++)
                                    Vector temp = (Vector)edges.elementAt(x);
                                    for(int y = 0;y < temp.size();y++)
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    return trees;
    public void printTree(Tree tree)
    System.out.print("("+tree.rootNode.edge.fromNode.getObjName()+","+tree.rootNode.edge.toNode.getObjName()+")");
    Vector siblings = tree.rootNode.childrens;
    for(int i = 0; i < siblings.size();i++)
    TreeNode node = (TreeNode)siblings.elementAt(i);
    System.out.print("("+node.edge.fromNode.getObjName()+","+node.edge.toNode.getObjName()+")");
    System.out.println();
    public Vector initializeTrees(Vector edges)
    Vector trees = new Vector();
    for(int i = 0;i < edges.size();i++)
    Vector temp = (Vector)edges.elementAt(i);
    for(int j = 0;j < temp.size();j++)
    Tree tree = new Tree();
    tree.insertNode((Edge)temp.elementAt(j));
    trees.add(tree);
    return trees;
    public synchronized void insertNode(Edge edge)
    if(rootNode == null)
    rootNode = new TreeNode(edge);
    else
    rootNode.insert(edge);
    EdgeGenerator class
    package SPO;
    import java.util.*;
    import k_means.*;
    public class EdgeGenerator
         public EdgeGenerator()
    public Vector createEdges(Vector dataPoints)
    //OrderPair orderPair = new OrderPair();
    Vector edges = new Vector();
    for(int i = 0;i < dataPoints.size()-1 ;i++)
    Vector temp = new Vector();
    for(int j = i+1;j < dataPoints.size();j++)
    //Create an order of edges
    Edge edge = new Edge((DataPoint)dataPoints.elementAt(i),(DataPoint)dataPoints.elementAt(j));
    temp.add(edge);
    edges.add(temp);
    return edges;
    Edge class
    package SPO;
    import k_means.*;
    public class Edge
    public DataPoint toNode;
    public DataPoint fromNode;
    public Edge(DataPoint x,DataPoint y)
    if (x.getX() > y.getX())
    this.fromNode = x;
    this.toNode = y;
    else
    this.fromNode=y;
    this.toNode = x;
    Entry Point
    package SPO;
    import java.util.*;
    import k_means.*;
    public class Tester {
         public static void main(String[] args)
              Vector dataPoints = new Vector();
              dataPoints.add(new DataPoint(140, "Orange"));
              dataPoints.add(new DataPoint(114.2, "Lemmon"));
              dataPoints.add(new DataPoint(111.5, "Coke"));
              dataPoints.add(new DataPoint(104.6, "Pine apple"));
              dataPoints.add(new DataPoint(94.1, "W grape"));
              dataPoints.add(new DataPoint(85.2, "Appletizer"));
              dataPoints.add(new DataPoint(84.8, "R Grape"));
              dataPoints.add(new DataPoint(74.2, "Sprite"));
              dataPoints.add(new DataPoint(69.2, "Granadilla"));
              dataPoints.add(new DataPoint(59, "Strawbery"));
              dataPoints.add(new DataPoint(45.5, "Stone"));
              dataPoints.add(new DataPoint(36.3, "Yam"));
              dataPoints.add(new DataPoint(27, "Cocoa"));
              dataPoints.add(new DataPoint(13.8, "Pawpaw"));
    EdgeGenerator eg = new EdgeGenerator();
    Vector edges = eg.createEdges(dataPoints);
    Tree treeMaker = new Tree();
    Vector partialTrees = treeMaker.initializeTrees(edges);
    Tree [] trees = treeMaker.createTrees(partialTrees,edges);
    for(int i = 0;i < trees.length;i++)
    treeMaker.printTree(trees[i]);
    The program output
    Each and every "@" symbol represents the start of a tree
    @(Orange,Lemmon)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)(Lemmon,Coke)
    @(Orange,Coke)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)
    @(Orange,Pine apple)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)
    @(Orange,W grape)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)
    @(Orange,Appletizer)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)
    @(Orange,R Grape)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)
    @(Orange,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(Orange,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(Orange,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Orange,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Orange,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Orange,Cocoa)(Cocoa,Pawpaw)
    @(Orange,Pawpaw)
    @(Lemmon,Coke)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)(Coke,Pine apple)
    @(Lemmon,Pine apple)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)
    @(Lemmon,W grape)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)
    @(Lemmon,Appletizer)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)
    @(Lemmon,R Grape)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)
    @(Lemmon,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(Lemmon,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(Lemmon,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Lemmon,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Lemmon,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Lemmon,Cocoa)(Cocoa,Pawpaw)
    @(Lemmon,Pawpaw)
    @(Coke,Pine apple)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)(Pine apple,W grape)
    @(Coke,W grape)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)
    @(Coke,Appletizer)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)
    @(Coke,R Grape)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)
    @(Coke,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(Coke,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(Coke,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Coke,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Coke,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Coke,Cocoa)(Cocoa,Pawpaw)
    @(Coke,Pawpaw)
    @(Pine apple,W grape)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)(W grape,Appletizer)
    @(Pine apple,Appletizer)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)
    @(Pine apple,R Grape)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)
    @(Pine apple,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(Pine apple,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(Pine apple,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Pine apple,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Pine apple,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Pine apple,Cocoa)(Cocoa,Pawpaw)
    @(Pine apple,Pawpaw)
    @(W grape,Appletizer)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)(Appletizer,R Grape)
    @(W grape,R Grape)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)
    @(W grape,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(W grape,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(W grape,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(W grape,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(W grape,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(W grape,Cocoa)(Cocoa,Pawpaw)
    @(W grape,Pawpaw)
    @(Appletizer,R Grape)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)(R Grape,Sprite)
    @(Appletizer,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(Appletizer,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(Appletizer,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Appletizer,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Appletizer,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Appletizer,Cocoa)(Cocoa,Pawpaw)
    @(Appletizer,Pawpaw)
    @(R Grape,Sprite)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)(Sprite,Granadilla)
    @(R Grape,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(R Grape,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(R Grape,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(R Grape,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(R Grape,Cocoa)(Cocoa,Pawpaw)
    @(R Grape,Pawpaw)
    @(Sprite,Granadilla)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)(Granadilla,Strawbery)
    @(Sprite,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Sprite,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Sprite,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Sprite,Cocoa)(Cocoa,Pawpaw)
    @(Sprite,Pawpaw)
    @(Granadilla,Strawbery)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)(Strawbery,Stone)
    @(Granadilla,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Granadilla,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Granadilla,Cocoa)(Cocoa,Pawpaw)
    @(Granadilla,Pawpaw)
    @(Strawbery,Stone)(Stone,Yam)(Stone,Yam)(Stone,Yam)
    @(Strawbery,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Strawbery,Cocoa)(Cocoa,Pawpaw)
    @(Strawbery,Pawpaw)
    @(Stone,Yam)(Yam,Cocoa)(Yam,Cocoa)
    @(Stone,Cocoa)(Cocoa,Pawpaw)
    @(Stone,Pawpaw)
    @(Yam,Cocoa)(Cocoa,Pawpaw)
    @(Yam,Pawpaw)
    @(Cocoa,Pawpaw)

    Your program description makes no sense. What exactly is it supposed to do?
    Your errors make no sense. What is it doing wrong?
    Your program output makes no sense. Look up pre-order, in-order, and post-order notation for representing trees. Pick one of those that you think would be best. I would go with pre-order. Because what you are doing isn't understandable.
    By the way, I think your concept of a tree is flawed. A node in a tree has 3 things. it has a reference to its parent, it has references to any of its children, and it has some key value that represents the node (if each node were represented by numbers, the value would be an integer or something). In the case of the root, its reference to its parent is null. I don't know what you are doing with your tree, but it is highly confusing.

  • Af:tree Master child relation ,but showing child id's as parent node vice

    Hi ,
    Am using adf 11G 11.1.1.5
    I have a small requiement .
    Am using af:tree , where i display childId's . Onclick of child it i have to show popup with tree structure where i will show parentid as node and childId's as child nodes
    i have created view link between child and parent views.
    Now isssue is when i selected childId in table (i mean a checkbox is given where user check the child Id and fire button ).On dat action am calling popup with tree structure .BUT here childId's are displaying like Parent nodes and parentId's as child node.
    any suggestion . if want i will drop the code

    i knew somewhere i was messed up .
    There is only viewlink between, Parent and child .NO FK ,these are not related database table (Entity Object.).
    simple query's which are made from same table , but base on Parent/Root col i have show data in tree structure way.
    Just like
    ParentId Chilld id
    100 jhon
    100 max
    100 adam
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