Rich:tree reloaded when it shouldn't be
I'm having troubles with rich:tree. In every page where is a tree, whenever an ajax call is executed it crashes and I get an duplicate component id error:
11:02:30,770 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (http-/0.0.0.0:8080-4) JSF1007: Duplicate component ID bscRpPrmF:foldersTree:j_idt278 found in view. 11:02:30,773 SEVERE [javax.enterprise.resource.webcontainer.jsf.application] (http-/0.0.0.0:8080-4) +id: j_id1 type: javax.faces.component.UIViewRoot@41d6afee
I think there is a problem with rich:tree because is reloaded even when it shouldn't be. I've created a very simple example:
Tree backing bean:
@ManagedBean
@SessionScoped
public class TreeBackingBean implements Serializable {
private SimpleTreeNode<TreeObject> tree;
@PostConstruct
private void initBean() {
tree = new TreeDataProvider().getTree();
}
// tree getter/setter
public SimpleTreeNode<TreeObject> getTree() {
return tree;
}
public void setTree(SimpleTreeNode<TreeObject> tree) {
this.tree = tree;
}
}
Tree data provider:
public class TreeDataProvider {
private SimpleTreeNode<TreeObject> root;
public SimpleTreeNode<TreeObject> getTree() {
if (root == null) {
root = new SimpleTreeNode<TreeObject>(false, null, null);
// node 1.1
SimpleTreeNode<TreeObject> child = new SimpleTreeNode<TreeObject>(false, "Node 1.1", new TreeObject("Node", "1.1"));
root.addChild(child.hashCode(), child);
// node 1.1.1
SimpleTreeNode<TreeObject> subChild = new SimpleTreeNode<TreeObject>(true, "Leaf 1.1.1", new TreeObject("Leaf", "1.1.1"));
child.addChild(subChild.hashCode(), subChild);
// node 1.1.2
subChild = new SimpleTreeNode<TreeObject>(true, "Leaf 1.1.2", new TreeObject("Leaf", "1.1.2"));
child.addChild(subChild.hashCode(), subChild);
// node 1.2
child = new SimpleTreeNode<TreeObject>(true, "Leaf 1.2", new TreeObject("Leaf", "1.2"));
root.addChild(child.hashCode(), child);
// node 1.3
child = new SimpleTreeNode<TreeObject>(false, "Node 1.3", new TreeObject("Node", "1.3"));
root.addChild(child.hashCode(), child);
// node 1.3.1
subChild = new SimpleTreeNode<TreeObject>(true, "Leaf 1.3.1", new TreeObject("Leaf", "1.3.1"));
child.addChild(subChild.hashCode(), subChild);
}
return root;
}
}
xhtml:
<h:body>
<h3>Rich Tree example</h3>
<h:form>
<rich:tree value="#{treeBackingBean.tree}" var="node" selectionType="client" toggleType="client" styleClass="tree">
<rich:treeNode expanded="#{node.selected}">
<h:outputText value="#{node.name}" />
</rich:treeNode>
</rich:tree>
<br/>
<h:outputText id="randomNumber" value="Random number: #{helloBean.randomNumber()}" />
<br/>
<a4j:commandLink value="Ajax" render="@this" execute="@this" limitRender="true" />
</h:form>
<br/>
<a4j:log level="debug" />
</h:body>
So the problem is that every time commandLink is clicked, treeBackingBean.getTree() is executed. As far as I understand this is wrong. I put also an random number output just to double check if anything else is executed.
CommandLink's execute @this should define that only the command link itself should be processed and render @this defines that only command link is re rendered. So why getTree is executed? I think this is somehow connected with my duplicate id problem.
