Hi!
Could someone tell me where I am wrong that my <tr:tree> always displays
just the root elements?
As the tree inited from the persistence layer (using Seam and EJB3) did not
work, I stepped back and setup the following simple test, but still I do not
see any "open" handles, nor is the "getChildren" getter on my TestBean ever
called, therefore the log message in getModel() also states a tree depth of
zero. On the adapter I removed some "model = null" instructions during
debugging.
Here is the <tr:tree>, the classes used and the faces-config.xml part.
Any help would be great!
Thanks in advance!
<tr:tree id="grouptree" var="cat" value="#{groupsAdapter.model}">
<f:facet name="nodeStamp">
<tr:commandLink text="#{cat.name}" styleClass="nodeText">
<!-- outcommented actionListener -->
</tr:commandLink>
</f:facet>
</tr:tree>
============================================================================
=========
<managed-bean>
<managed-bean-name>treeTest</managed-bean-name>
<managed-bean-class>japp.jsf.TreeTest</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
<managed-bean>
<managed-bean-name>groupsAdapter</managed-bean-name>
<managed-bean-class>japp.jsf.TreeModelAdapter</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
<managed-property>
<property-name>instance</property-name>
<value>#{treeTest.roots}</value>
</managed-property>
<managed-property>
<property-name>childPropertyName</property-name>
<value>children</value>
</managed-property>
</managed-bean>
============================================================================
===0
public class TreeModelAdapter {
private String childPropertyName;
private Object _instance = null;
private transient TreeModel _model = null;
Log logger = LogFactory.getLog(TreeModelAdapter.class);
public TreeModelAdapter() {}
public TreeModel getModel() throws IntrospectionException {
if (_model == null) {
_model = new ChildPropertyTreeModel(getInstance(),
getChildPropertyName());
}
logger.info("Tree depth: "+_model.getDepth());
return _model;
}
public String getChildPropertyName() {
return childPropertyName;
}
public void setChildPropertyName(String propertyName) {
childPropertyName = propertyName;
}
public Object getInstance() {
return _instance;
}
public void setInstance(Object instance) {
_instance = instance;
}
public void setListInstance(List<Object> instance) {
setInstance(instance);
}
@SuppressWarnings("unchecked")
public List<Object> getListInstance() {
return (List<Object>)getInstance();
}
}
============================================================================
==
public class TreeTest {
public TreeTest() {
}
private List<TestBean> roots;
public List<TestBean> getRoots() {
if(roots != null) return roots;
roots = new ArrayList<TestBean>();
TestBean r1 = new TestBean("root1");
TestBean ch1 = new TestBean("ch1");
TestBean enk11 = new TestBean("enk1");
ch1.addChild(enk11);
r1.addChild(ch1);
TestBean r2 = new TestBean("root2");
TestBean ch2 = new TestBean("ch2");
TestBean enk21 = new TestBean("enk21");
TestBean enk22 = new TestBean("enk22");
ch2.addChild(enk21);
ch2.addChild(enk22);
r2.addChild(ch2);
TestBean ch3 = new TestBean("ch3");
TestBean enk23 = new TestBean("enk23");
ch3.addChild(enk23);
r2.addChild(ch3);
roots.add(r1);
roots.add(r2);
return roots;
}
}
============================================================================
====
public class TestBean {
private List<TestBean> children;
private String name;
public TestBean() {
children = new ArrayList<TestBean>();
}
public TestBean(String name) {
this.name = name;
children = new ArrayList<TestBean>();
}
public void addChild(TestBean ch) {
children.add(ch);
}
//never called !!
public List<TestBean> getChildren() {
System.out.println("getChildren called on "+name);
System.out.print("getChildren returns: ");
for(TestBean ch : children) {
System.out.print(ch.toString());
}
System.out.println();
return children;
}
public void setChildren(List<TestBean> children) {
this.children = children;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String toString() {
return name+" kids: "+children.size();
}
}
