<p:tree value="#{student.rootBean}" var="node"
id="studentTreeId"  selectionMode="multiple"
selection="#{student.selectedStud}">
<p:treeNode  id="studtTreeNodeId" styleClass="treeNodeClass">
<h:panelGrid columns="2">
<p:selectBooleanCheckbox id="studCheckboxId"
value="#{node.selected}">
</p:selectBooleanCheckbox>
<p:outputLabel value="#{node.studentName}"
for="studCheckboxId"/>
</h:panelGrid> </p:treeNode></p:tree>