An ajax behavior callback is provided for each event such as expand, collapse, select and unselect.
Documentation<style type="text/css"> .ui-treetable table { table-layout: fixed } </style> <h:form id="form"> <p:growl id="messages" showDetail="true" /> <p:treeTable value="#{ttEventsView.root}" var="document" selectionMode="single" selection="#{ttEventsView.selectedNode}"> <p:ajax event="expand" listener="#{ttEventsView.onNodeExpand}" update=":form:messages" /> <p:ajax event="collapse" listener="#{ttEventsView.onNodeCollapse}" update=":form:messages" /> <p:ajax event="select" listener="#{ttEventsView.onNodeSelect}" update=":form:messages" /> <p:ajax event="unselect" listener="#{ttEventsView.onNodeUnselect}" update=":form:messages" /> <f:facet name="header"> Document Viewer </f:facet> <p:column headerText="Name"> <h:outputText value="#{document.name}" /> </p:column> <p:column headerText="Size"> <h:outputText value="#{document.size}" /> </p:column> <p:column headerText="Type"> <h:outputText value="#{document.type}" /> </p:column> </p:treeTable> </h:form>
@Named("ttEventsView") @ViewScoped public class EventsView implements Serializable { private TreeNode root; private TreeNode selectedNode; @Inject private DocumentService service; @PostConstruct public void init() { root = service.createDocuments(); } public TreeNode getRoot() { return root; } public TreeNode getSelectedNode() { return selectedNode; } public void setSelectedNode(TreeNode selectedNode) { this.selectedNode = selectedNode; } public void setService(DocumentService service) { this.service = service; } public void onNodeExpand(NodeExpandEvent event) { FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Expanded", event.getTreeNode().toString()); FacesContext.getCurrentInstance().addMessage(null, message); } public void onNodeCollapse(NodeCollapseEvent event) { FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Collapsed", event.getTreeNode().toString()); FacesContext.getCurrentInstance().addMessage(null, message); } public void onNodeSelect(NodeSelectEvent event) { FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Selected", event.getTreeNode().toString()); FacesContext.getCurrentInstance().addMessage(null, message); } public void onNodeUnselect(NodeUnselectEvent event) { FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Unselected", event.getTreeNode().toString()); FacesContext.getCurrentInstance().addMessage(null, message); } }
@Named @ApplicationScoped public class DocumentService { public TreeNode createDocuments() { TreeNode root = new DefaultTreeNode(new Document("Files", "-", "Folder"), null); TreeNode documents = new DefaultTreeNode(new Document("Documents", "-", "Folder"), root); TreeNode pictures = new DefaultTreeNode(new Document("Pictures", "-", "Folder"), root); TreeNode movies = new DefaultTreeNode(new Document("Movies", "-", "Folder"), root); TreeNode work = new DefaultTreeNode(new Document("Work", "-", "Folder"), documents); TreeNode primefaces = new DefaultTreeNode(new Document("PrimeFaces", "-", "Folder"), documents); //Documents TreeNode expenses = new DefaultTreeNode("document", new Document("Expenses.doc", "30 KB", "Word Document"), work); TreeNode resume = new DefaultTreeNode("document", new Document("Resume.doc", "10 KB", "Word Document"), work); TreeNode refdoc = new DefaultTreeNode("document", new Document("RefDoc.pages", "40 KB", "Pages Document"), primefaces); //Pictures TreeNode barca = new DefaultTreeNode("picture", new Document("barcelona.jpg", "30 KB", "JPEG Image"), pictures); TreeNode primelogo = new DefaultTreeNode("picture", new Document("logo.jpg", "45 KB", "JPEG Image"), pictures); TreeNode optimus = new DefaultTreeNode("picture", new Document("optimusprime.png", "96 KB", "PNG Image"), pictures); //Movies TreeNode pacino = new DefaultTreeNode(new Document("Al Pacino", "-", "Folder"), movies); TreeNode deniro = new DefaultTreeNode(new Document("Robert De Niro", "-", "Folder"), movies); TreeNode scarface = new DefaultTreeNode("mp3", new Document("Scarface", "15 GB", "Movie File"), pacino); TreeNode carlitosWay = new DefaultTreeNode("mp3", new Document("Carlitos' Way", "24 GB", "Movie File"), pacino); TreeNode goodfellas = new DefaultTreeNode("mp3", new Document("Goodfellas", "23 GB", "Movie File"), deniro); TreeNode untouchables = new DefaultTreeNode("mp3", new Document("Untouchables", "17 GB", "Movie File"), deniro); return root; } public TreeNode createCheckboxDocuments() { TreeNode root = new CheckboxTreeNode(new Document("Files", "-", "Folder"), null); TreeNode documents = new CheckboxTreeNode(new Document("Documents", "-", "Folder"), root); TreeNode pictures = new CheckboxTreeNode(new Document("Pictures", "-", "Folder"), root); TreeNode movies = new CheckboxTreeNode(new Document("Movies", "-", "Folder"), root); TreeNode work = new CheckboxTreeNode(new Document("Work", "-", "Folder"), documents); TreeNode primefaces = new CheckboxTreeNode(new Document("PrimeFaces", "-", "Folder"), documents); //Documents TreeNode expenses = new CheckboxTreeNode("document", new Document("Expenses.doc", "30 KB", "Word Document"), work); TreeNode resume = new CheckboxTreeNode("document", new Document("Resume.doc", "10 KB", "Word Document"), work); TreeNode refdoc = new CheckboxTreeNode("document", new Document("RefDoc.pages", "40 KB", "Pages Document"), primefaces); //Pictures TreeNode barca = new CheckboxTreeNode("picture", new Document("barcelona.jpg", "30 KB", "JPEG Image"), pictures); TreeNode primelogo = new CheckboxTreeNode("picture", new Document("logo.jpg", "45 KB", "JPEG Image"), pictures); TreeNode optimus = new CheckboxTreeNode("picture", new Document("optimusprime.png", "96 KB", "PNG Image"), pictures); //Movies TreeNode pacino = new CheckboxTreeNode(new Document("Al Pacino", "-", "Folder"), movies); TreeNode deniro = new CheckboxTreeNode(new Document("Robert De Niro", "-", "Folder"), movies); TreeNode scarface = new CheckboxTreeNode("mp3", new Document("Scarface", "15 GB", "Movie File"), pacino); TreeNode carlitosWay = new CheckboxTreeNode("mp3", new Document("Carlitos' Way", "24 GB", "Movie File"), pacino); TreeNode goodfellas = new CheckboxTreeNode("mp3", new Document("Goodfellas", "23 GB", "Movie File"), deniro); TreeNode untouchables = new CheckboxTreeNode("mp3", new Document("Untouchables", "17 GB", "Movie File"), deniro); return root; } }