RF 4: How to show root node (using org.richfaces.model.TreeNode model)
Hello,
I'm trying to make simple sample of use of rich:tree. I implement org.richfaces.model.TreeNode. I created root node and added to it new nodes (children). When the tree is rendered I can see only the children nodes, not the root. How to show the root node? Here I'll show part of my code:
My model:
public class MyRFTreeNode implements TreeNode, Serializable {
private Picture data;
private Map<Object, TreeNode> children = new HashMap<Object, TreeNode>();
private TreeNode parent;
public MyRFTreeNode() {
this.data = new Picture("Root", null);
}
public MyRFTreeNode(Picture data) {
this.data = data;
}
@Override
public TreeNode getChild(Object o) {
return children.get(o);
}
@Override
public int indexOf(Object o) {
return 0;
}
@Override
public Iterator<Object> getChildrenKeysIterator() {
return children.keySet().iterator();
}
@Override
public boolean isLeaf() {
return false;
}
@Override
public void addChild(Object o, TreeNode tn) {
children.put(o, tn);
((MyRFTreeNode) tn).setParent(this);
}
@Override
public void insertChild(int i, Object o, TreeNode tn) {
addChild(o, tn);
}
@Override
public void removeChild(Object o) {
MyRFTreeNode treeNode = (MyRFTreeNode) children.remove(o);
if (treeNode != null) {
treeNode.setParent(null);
}
}
public void setParent(MyRFTreeNode parent) {
this.parent = parent;
}
public Picture getData() {
return data;
}
public TreeNode getParent() {
return parent;
}
}
My managed bean:
@ManagedBean
@RequestScoped
public class TreeBeanRFTreeNode {
private MyRFTreeNode root;
public TreeBeanRFTreeNode() {
root = new MyRFTreeNode();
MyRFTreeNode node1 = new MyRFTreeNode(new Picture("picture1", "Description1"));
MyRFTreeNode node2 = new MyRFTreeNode(new Picture("picture2", "Description2"));
MyRFTreeNode node3 = new MyRFTreeNode(new Picture("picture3", "Description3"));
root.addChild(1, node1);
root.addChild(2, node2);
root.addChild(3, node3);
MyRFTreeNode node11 = new MyRFTreeNode(new Picture("picture11", "Description11"));
MyRFTreeNode node12 = new MyRFTreeNode(new Picture("picture12", "Description12"));
MyRFTreeNode node13 = new MyRFTreeNode(new Picture("picture13", "Description13"));
node1.addChild(11, node11);
node1.addChild(12, node12);
node1.addChild(13, node13);
}
public MyRFTreeNode getRoot() {
return root;
}
}
My xhtml:
<h:form id="form_main_tree">
<rich:tree value="#{treeBeanRFTreeNode.root}" var="item">
<rich:treeNode>
<h:outputText value="#{item.data.name}"/>
</rich:treeNode>
</rich:tree>
</h:form>
The result:
I'm using RichFaces 4, nightly build from 22.03.2011.
Greetings
