I have two tables Author, Books. And POJOs, .hbm.xml for each of the tables. I wrote a select query which gives me some details from both the tables.
select A.id.BookNum,A.id.AuthorName,B.id.DatePublished,B.id.Price
,B.id.Condition,B.id.BookBought from Author A, Book B where
B.id.Condition == 'NEW' and A.id.BookNum = A.id.BookNum order by
A.id.AuthorName;
I have got the results, and having it stored in ArrayList. UnApprovedBookList When i try to display this in velocity template i am not able to iterate this. I have my POJOs as Author, Book which has getter()/ Setter() for AuthorId and BookId respectively and AuthorId, BookId which has the getters/ setters for fields in it.
public class Book implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private BookId id;
public Book (){ }
public Book (BookId id){this.id = id;}
public BookId getId(){return id;}
public void setId(BookId id) {this.id = id;}
}
and my BookId with getters/ setters for the fields in it, basically all the table columns.
public class BookId implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private BookNum;
public BookId (){ }
public String getBookNumid() {return BookNum;}
public void setBookNum(String bookNum) {bookNum= bookNum;}
}
And my hbm as below:
<hibernate-mapping>
<class name="com.bookStore.hibernate.dao.Book" table="BOOK" schema="ORG">
<composite-id name="id" class="com.bookStore.hibernate.dao.BookId">
<key-property name="BookNum" type="string">
<column name="SH_BOOK_NUM" length="17" />
</key-property>
<key-property name="DatePublished" type="date">
<column name="SH_DATE_PUB" length="13" />
</key-property>
<key-property name="Price" type="int">
<column name="SH_PRICE" length="5" />
</key-property>
<key-property name="Condition" type="string">
<column name="SH_CONDITION" length="10" />
</key-property>
<key-property name="BookBought " type="date">
<column name="SH_BOOK_BOUGHT" length="13" />
</key-property>
</composite-id>
</class>
</hibernate-mapping>
And I am finding it difficult when I try to iterate and display in Velocity. my code snippet as below:
#foreach($unApprovedBook in $unApprovedBookList)
<input type="text" id="bookNum" value="$unApprovedBook.getId().getBookNumid()">
#set($i = $i + 1)
By doing so i am seeing $unApprovedBook.getId().getBookNumid() in UI
if I change the code to:
#foreach($unApprovedBook in $unApprovedBookList)
<input type="text" id="bookNum" value="$unApprovedBook">
#set($i = $i + 1)
I am seeing: [Ljava.lang.Object;#3160316 in UI.
Please let me know what how can I iterate my javaobject in Velocity.
[1]: https://i.stack.imgur.com/eBrYQ.jpg
Try this Way:
You should use property expression $unApprovedBook.id.BookNum. Try To follow Java naming convention.
<input type="text" id="bookNum" value="${unApprovedBook.id.BookNum}">
Related
I'm using PrimeFace4.0, JSF 2.2, Java, and XHTML. I have a string value that I need to pass from one bean to another. The value is selected on one XHTML page and when the user clicks to select, a new web page is launched. I can see from my server output that the value is successfully collected by the first bean (TestSelectBean), but I can't seem to get it into the next bean (TargetBeanFranz). When a String is hard coded into the bean, it works correctly. However, when I try to use the managed property to call it as per the user input, I get a NullPointer at the line of code (85) where I'm trying to use it.
The first HTML: testselect.xhtml
//irrelevant code
<p:layoutUnit position="center">
<h:form>
<p:selectOneRadio id="Test" value="#{testSelectBean.selectedNameOfExperiments}" >
<f:selectItems id="selectedNameOfExperiments" value="#{testSelectBean.nameofexperiments}" var="entry" itemValue="#{entry.key}" itemLabel="#{entry.value}" />
</p:selectOneRadio>
<p:commandLink id="nonAjax" action="open" actionListener="#{testSelectBean.getParameters}" style="margin-right:20px;" ajax="false">
<h:outputText value="Submit" />
</p:commandLink>
</h:form>
</p:layoutUnit>
The user chosen selectedNameOfExperiments is succsefully passed to TestSelectBean:
#ManagedBean(name = "testSelectBean", eager = true)
#SessionScoped
public class TestSelectBean implements Serializable {
private static final long serialVersionUID = 1L;
protected String selectedNameOfExperiments;
private final Map<String, String> nameofexperiments;
private transient String selected;
public TestSelectBean() throws SQLException {
selected = new String();
nameofexperiments = new HashMap<String, String>();
XYexpdataServiceAdapter xydata = new XYexpdataServiceAdapterImpl();
List<String> dbnameofexperiments = xydata.getNameofexperiments();
for (String ta : dbnameofexperiments) {
nameofexperiments.put(ta, ta);
}
}
public String getSelectedNameOfExperiments() {
return selectedNameOfExperiments;
}
public void setSelectedNameOfExperiments(String selectedNameOfExperiments1) {
this.selectedNameOfExperiments = selectedNameOfExperiments1;
}
public Map<String, String> getNameofexperiments() {
return nameofexperiments;
}
public void getParameters() {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("You've selected Experiment:" + selectedNameOfExperiments));
System.out.println("You've selected Experiment:" + selectedNameOfExperiments);
}
}
However, the XHTML FranzwPopup will not launch unless Experiment is hard coded into TargetBeanFranz.
//irrelevant code
<p:layoutUnit position="center">
<p:panelGrid columns="2" style=" font-size: 14">
<h:outputLabel value="Description" style="font-size: 20"/>
<h:outputText value="Neutron-induced production of protons, deuterons and tritons in Copper and Bismuth."/>
<h:outputLabel value="Reference" style="font-size: 20"/>
<h:outputText value="Nuclear Physics A510 (1990) 774-802 (Franz, et. al.)"/>
</p:panelGrid>
<form action="http://localhost:8080/primefaces/faces/handle.xhtml" method="get" name="login" onsubmit="process();
return false;" style="overflow-y: scroll">
Click to display chart data in a table.<br />
<input type="submit" value="Display"/>
</form>
<h:form>
<h:panelGrid columns="4" cellpadding="5">
<p:selectCheckboxMenu id="menu1" value="#{targetBeantFranz.selectedTargets}" label="Targets" filter="true" filterMatchMode="startsWith"
panelStyle="width:220px">
<f:selectItems value="#{targetBeantFranz.targets}" />
</p:selectCheckboxMenu>
<p:selectCheckboxMenu id="menu2" value="#{targetBeantFranz.selectedSecondaries}" label="Secondaries" filter="true" filterMatchMode="startsWith"
panelStyle="width:220px">
<f:selectItems value="#{targetBeantFranz.secondaries}" />
</p:selectCheckboxMenu>
<p:selectCheckboxMenu id="menu3" value="#{targetBeantFranz.selectedReactions}" label="Reactions" filter="true" filterMatchMode="startsWith"
panelStyle="width:220px">
<f:selectItems value="#{targetBeantFranz.reactions}" />
</p:selectCheckboxMenu>
<p:selectCheckboxMenu id="menu4" value="#{targetBeantFranz.selectedBeamEnergies}" label="Beam Energy" filter="true" filterMatchMode="startsWith"
panelStyle="width:220px">
<f:selectItems value="#{targetBeantFranz.beamenergies}" />
</p:selectCheckboxMenu>
</h:panelGrid>
<p:panel header="Resulting Plots">
<p:commandLink id="nonAjax" actionListener="#{targetBeantFranz.getParameters}" style="margin-right:20px;" ajax="false">
<button id="change">Submit Query</button>
</p:commandLink>
<div id="container" style="min-width: 310px; margin: 0 auto"></div>
</p:panel>
</h:form>
</p:layoutUnit>
//more irrelevant
Instead, I get a NPE on line 85 of TargetBeanFranz where I try to initialize Experiment.
//stuff
#ManagedBean(name = "targetBeantFranz", eager = true)
#SessionScoped
public class TargetBeanFranz implements Serializable {
#ManagedProperty(value="#{testSelectBean}")
private TestSelectBean testSelectBean;
public TestSelectBean getTestSelectBean(){
return testSelectBean;
}
public void setTestSelectBean (TestSelectBean testSelectBean) {
this.testSelectBean = testSelectBean;
}
private static final long serialVersionUID = 1L;
private String Experiment;
//more stuff
public TargetBeanFranz() throws SQLException {
targets = new HashMap<String, String>();
selectedTargets = new ArrayList<String>();
secondaries = new HashMap<String, String>();
selectedSecondaries = new ArrayList<String>();
reactions = new HashMap<String, String>();
selectedReactions = new ArrayList<String>();
beamenergies = new HashMap<String, String>();
selectedBeamEnergies = new ArrayList<String>();
seriesDataArray = new ArrayList<String>();
seriesDataArArray = new ArrayList<ArrayList<String>>();
seriesNameArray = new ArrayList<String>();
seriesToolTipArray = new ArrayList<String>();
seriesErrorArray = new ArrayList<String>();
seriesErrorArArray = new ArrayList<ArrayList<String>>();
allselected = new ArrayList<XYexpdata>();
Experiment = testSelectBean.getSelectedNameOfExperiments(); //This is line 85 and where I'm getting the NPE.
XYexpdataServiceAdapter xydata = new XYexpdataServiceAdapterImpl();
List<String> dbtargets = xydata.getTargetNamesbyExperiment(Experiment);
for (String ta : dbtargets) {
targets.put(ta, ta);
}
List<String> dbsecondaries = xydata.getSecondaryNamesbyExperiment(Experiment);
for (String ta : dbsecondaries) {
secondaries.put(ta, ta);
}
List<String> dbreactions = xydata.getReactionNamesbyExperiment(Experiment);
for (String ta : dbreactions) {
reactions.put(ta, ta);
}
List<String> dbbeamenergies = xydata.getBeamEnergybyExperiment(Experiment);
for (String ta : dbbeamenergies) {
beamenergies.put(ta, ta);
}
}
//more code
I think the reason for your problem is, that the signature of the action listener in your command link does not match.
The method in the bean has to be of the following type:
public void getParameters(javax.faces.ActionEvent event) {
.....
}
If you are using Java EE 7 you should also avoid the annotations in the package javax.faces.bean, since they are abandoned. Use CDI beans, it makes life easier:
#Named
#SessionScoped
public class TestSelectBean {
...
}
#Named
#SessionScoped
public class TargetBeanFranz {
#Inject
private TestSelectBean testSelectBean;
....
}
See more about the CDI topic here: Backing beans (#ManagedBean) or CDI Beans (#Named)?
I wanted to write a code to get the input value of prime faces calendar input value.
<div style="padding-left: 300px;">
<p:calendar value="#{calendarBean.fromDate}" id="fromButton" showOn="button" pattern="dd-MMMM-yyyy"
required="true" requiredMessage="Insert From Date!">
</p:calendar>
<p:calendar value="#{calendarBean.toDate}" id="toButton" showOn="button" pattern="dd-MMMM-yyyy"
style="padding-left: 100px;padding-right: 30px" required="true" requiredMessage="Insert To Date!">
</p:calendar>
<p:commandButton actionListener="#{userLeaveBean.addAppliedLeave}" styleClass="apply_button" value="Create Leave">
<f:attribute name="userId" value="#{employee.name}"/>
</p:commandButton>
</div>
I want to pass three parameter values(userId,fromDate,toDate) through the method call
<p:commandButton actionListener="#{userLeaveBean.addAppliedLeave}" styleClass="apply_button" value="Create Leave">
using method addAppliedLeave().
I am able to send the userId using:
<f:attribute name="userId" value="#{employee.name}"/> but how can I pass the values for calender input at run time?
also I am able to get the value of userId in method addAppliedLeave()
public void addAppliedLeave(ActionEvent event){
String userId = (String)event.getComponent().getAttributes().get("userId");
System.out.println(userId);
String fromDate = (String)event.getComponent().getAttributes().get("fromDate");
System.out.println(fromDate);
}
but I am totaly helpless about dynamic input of <p:calendar> value.
Please help.
You can easily get p:calender value at run time using p:ajax as shown here
/* view.xhtml */
<p:calendar value="#{yourBackingBean.user.fromDate}" mode="inline" id="inlineCal">
<p:ajax event="dateSelect" listener="#{yourBackingBean.handleDateSelect}" update="growl" />
</p:calendar>
/* Backing bean */
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
#ManagedBean
#ViewScoped
public class YourBackingBean implements Serializable {
private static final long serialVersionUID = 1L;
private User user;
public void handleDateSelect(DateSelectEvent event) {
System.out.println("dynamic date selected is "+user.getFromDate());
// so here you will get everytime your changed date.
//As this method will get called everytime whenever you will change your date from p:calender component.
}
public User getUser() {
if(user==null){
user=new User();
}
return user;
}
}
/* javaBean */
public class User implements Serializable {
private static final long serialVersionUID = 1L;
private Date fromDate;
private Date toDate;
public Date getFromDate() {
return fromDate;
}
public void setFromDate(Date fromDate) {
this.fromDate = fromDate;
}
public Date getToDate() {
return toDate;
}
public void setToDate(Date toDate) {
this.toDate = toDate;
}
}
I read many similar questions, but I cannot figure out how to solve my problem:
I wrote a composite component backed by a view-scoped, self-contained managed bean.
The component consists of an autocomplete textbox with a button that opens a dialog. The user can select an item either by name (autocomplete) or selecting a node in a tree (dialog).
The backing bean implements all the stuff needed (data access, tree-logics etc) and should expose the selected item (as a POJO).
Now I have 2 problems:
Due to the complexity of the tree management, selectedObj property is accessed by a getter and a setter that do some stuff in the bean: they are not simply accessing a class field. Now I'm passing the entire bean as an attribute. How can I just make the bean's selectedObj the "value" attribute of my composite component?
How can I use multiple instance of my component in the same view?
Here is an example of the component:
<cc:interface>
<cc:attribute name="bean" type="com.yankee.OUTreeBean" required="true"/>
<cc:attribute name="listener" method-signature="void listener()"/>
</cc:interface>
<cc:implementation>
<p:dialog id="#{cc.id}_dialog" widgetVar="_dlg" header="Select OU" modal="true" dynamic="true" >
<p:toolbar>
<!-- some buttons to refresh, expand, collapse etc. -->
</p:toolbar>
<p:tree id="#{cc.id}_tree" value="#{cc.attrs.bean.root}" var="node"
selectionMode="single"
selection="#{cc.attrs.bean.selectedNode}">
<p:ajax event="select" update="#form" listener="#{cc.attrs.listener}" oncomplete="if (!args.validationFailed) _dlg.hide()" />
<p:treeNode>
<h:outputText value="#{node.OU_NAME}" />
</p:treeNode>
</p:tree>
</p:dialog>
<p:autoComplete id="#{cc.id}_inner" value="#{cc.attrs.bean.selectedObj}" completeMethod="#{cc.attrs.bean.completeObj}"
var="obj" itemLabel="#{obj.OU_NAME}" itemValue="#{obj}"
forceSelection="true"
converter="ouConverter"
multiple="false"
minQueryLength="2">
<p:ajax event="itemSelect" listener="#{cc.attrs.listener}" update="#form"/>
</p:autoComplete>
<div style="float: right">
<p:commandButton id="bSearch" icon="ui-icon-search" onclick="_dlg.show()"/>
</div>
</cc:implementation>
The backing bean of the COMPONENT:
#ManagedBean
#ViewScoped
public class OUTreeBean implements Serializable {
private static final long serialVersionUID = 1L;
private List<OU> data; // Data as plain list
protected TreeNode root; // root node of data as a tree
protected TreeNode selectedNode;
#PostConstruct
private void init() throws SQLException {
refreshData();
}
public OU getSelectedObj() {
if (selectedNode == null) {
return null;
}
return ((OU) selectedNode.getData());
}
public void setSelectedObj(OU ou) {
// Find the right tree node and do whatever needed
}
public TreeNode selectedNode getSelectedNode() {
// Blah blah
}
public void setSelectedNode(TreeNode selectedNode) {
// Blah blah
}
public List<OU> completeObj(String namePattern) {
// Autocomplete handler
}
public void refreshData() {
// Blah blah
}
// etc...
}
The using page excerpt:
<ism:selectOUTree id="cbSelectOu" bean="#{myBean.ouFilterBean}" listener="#{myBean.onOUChange}"/>
The backing bean of the PAGE:
#ManagedBean
#ViewScoped
public class MyBean implements Serializable {
private static final long serialVersionUID = 1L;
#ManagedProperty("#{oUTreeBean}")
private OUTreeBean ouFilterBean;
public void onOUChange() throws SQLException {
// Blah blah
}
}
I had the same problem few days ago. Just like you I used ManagedBean as an object that should do the job. After some time I figured out that I should just create FacesComponent. I'm new in JSF so it wasn't that easy to find the solution but it solved all my problems. This is how does it work:
view.xhtml
<h:body>
<cc:interface componentType="playerComponent">
<cc:attribute name="playerId" required="true"/>
</cc:interface>
<cc:implementation>
<c:set var="inplaceId" value="inplace-#{cc.attrs.playerId}" />
<c:set var="outputId" value="output-#{cc.attrs.playerId}" />
<h:form id="form-#{cc.attrs.playerId}">
<p:inplace editor="false" widgetVar="#{inplaceId}">
<h:inputText value="#{cc.player.name}" id="outputId"/>
<p:commandButton onclick="#{inplaceId}.save()" action="#{cc.save}" update="#{outputId}" value="save" />
<p:commandButton onclick="#{inplaceId}.cancel()" update="#{outputId}" value="cancel" />
</p:inplace>
</h:form>
</cc:implementation>
</h:body>
PlayerComponent.java
#FacesComponent("playerComponent")
public class PlayerComponent extends UINamingContainer {
private Player player;
private void init() {
Object idObj = getAttributes().get("playerId");
if (idObj != null) {
// create player object
}
}
public void save() {
// save player object
}
public Player getPlayer() {
if (player == null) {
init();
}
return player
}
}
Player.java (entity)
public class Player {
private name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
As I wrote I'm new in JSF and probably player object should be created in different way (using #PostConstruct on in constructor?) but this work.
I am having trouble in using a JSF composite-component in the right way. I put some components together and everything was working. Then I just extracted the code to a composite-component, and passed the corresponding attributes and suddenly I am getting conversation exceptions.
<composite:interface>
<composite:attribute name="selectedIDs" type="java.util.Collection" required="true"/>
<composite:attribute name="selectItems" type="java.util.List" required="true" />
<composite:attribute name="addAction" required="true"/>
<composite:attribute name="deleteAction" required="true"/>
<composite:attribute name="deleteButtonDisabled" />
<composite:attribute name="ajaxListener" method-signature="void listener(javax.faces.event.AjaxBehaviorEvent)"/>
</composite:interface>
<composite:implementation>
<div class="myClass">
<h:outputStylesheet library="views" name="selectManyControlPanel.css" target="head" />
<h:form>
<h:selectManyListbox value="#{cc.attrs.selectedIDs}">
<f:selectItems value="#{cc.attrs.selectItems}" />
<f:ajax render="delete"
listener="#{cc.attrs.ajaxListener}" />
</h:selectManyListbox>
<br />
<h:commandButton id="delete" value="Delete"
disabled="#{cc.attrs.deleteButtonDisabled}"
action="#{cc.attrs.deleteAction}" />
<h:commandButton id="add" value="Add" action="#{cc.attrs.addAction}"/>
</h:form>
</div>
</composite:implementation>
Here is the page where I am using the newly created component
<view:selectManyControlPanel
selectedIDs="#{bean.selectedIds}"
selectItems="#{bean.listOfSelectItems}"
addAction="#{bean.addNew}"
deleteAction="#{bean.deleteSelection}"
ajaxListener="#{bean.selectionChanged}"
deleteButtonDisabled="#{bean.deleteButtonDisabled}" />
Bean (some methods skipped an parts renamed)
package views;
#SuppressWarnings("serial")
#Named
#RequestScoped
public class Bean implements Serializable, IOverviewView {
#Inject
Presenter presenter;
private boolean deleteButtonDisabled;
private List<SelectItem> listOfSelectItems;
private Set<Long> selectedIds;
public Bean(){
deleteButtonDisabled = true;
listOfSelectItems = new ArrayList<SelectItem>(10);
}
public void selectionChanged(AjaxBehaviorEvent event){
if(selectedIds.isEmpty())
deleteButtonDisabled = true;
else
deleteButtonDisabled = false;
}
public void deleteBikes(){
presenter.delete(selectedIds);
}
public void addNew(){
presenter.addNew();
}
public List<SelectItem> getListOfSelectItems() {
return listOfSelectItems;
}
public Set<Long> getSelectedIds() {
return selectedIds;
}
#PostConstruct
public void init(){
System.out.println("INITIALIZING BEAN: " + this.getClass().getName());
this.presenter.setView(this);
this.presenter.init();
}
public boolean isDeleteButtonDisabled() {
return deleteButtonDisabled;
}
#Override
public void setDeleteButtonEnabled(boolean isEnabled) {
deleteButtonDisabled = !isEnabled;
}
public void setListOfSelectItems(List<SelectItem> list) {
this.listOfSelectItems = list;
}
public void setSelectedIds(Set<Long> selectedIds) {
this.selectedIds = selectedIds;
}
#Override
public void updateBikesList(Set<ViewObject> objectsToDisplay) {
updateList(objectsToDisplay);
}
private void updateList(Set<ViewObject> objectsToDisplay){
listOfSelectItems.clear();
for (ViewObject vO : objectsToDisplay) {
final String label = vO.getManufacturer() + ", " + vO.getModel() + " (" + vO.getYear() + ")";
listOfSelectItems.add(new SelectItem(vO.getId(), label));
}
}
....
}
Exception
javax.el.ELException: /resources/views/selectManyControlPanel.xhtml #25,56 value="#{cc.attrs.selectedIDs}": /index.xhtml #21,70 selectedIDs="#{bean.selectedIds}": Cannot convert [Ljava.lang.String;#1e92093 of type class [Ljava.lang.String; to interface java.util.Set
The only thing that changed is that I am using the composition instead of the plain code. The EL-expressions are still the same. Can someone enlighten me please? I expected that the parameters are just passed through but obviously not...
This is related to Mojarra issue 2047. It's scheduled to be fixed in the upcoming 2.2.
The issue ticket also proposes the following workaround:
<view:selectManyControlPanel
selectedIDsBean="#{bean}"
selectedIDsProperty="selectedIds"
with in CC interface
<composite:attribute name="selectedIDsBean" required="true"/>
<composite:attribute name="selectedIDsProperty" required="true"/>
and in CC implementation
<h:selectManyListbox value="#{cc.attrs.selectedIDsBean[cc.attrs.selectedIDsProperty]}">
I am working with primefaces tree component. There is a context menu for the tree (add a node, edit node, delete node). After performing some operation, I need to refresh the tree and then highlight the node added or edited.
This is my code.
index.xhtml
<p:treeNode>
<h:outputText value="#{node}" />
</p:treeNode>
</p:tree>
<p:contextMenu for="pTree" id="cmenu">
<p:menuitem value="Add topic as child" update="pTree, cmenu"
actionListener="#{treeBean.addChildNode}" />
<p:menuitem value="Add topic Below" update="pTree, cmenu"
actionListener="#{treeBean.addTopicBelow}" />
<p:menuitem value="Delete Topic" update="pTree, cmenu"
actionListener="#{treeBean.deleteNode}" />
</p:contextMenu>
treeBean.java
public class TreeBean implements Serializable {
private TreeNode root;
public TreeBean() {
root = new DefaultTreeNode("Root", null);
// GET the root nodes first L0
List<TracPojo> rootNodes = SearchDao.getRootNodes111();
Iterator it = rootNodes.iterator();
while (it.hasNext()) {
TracPojo t1 = (TracPojo) it.next();
String tid = t1.getTopicID();
TreeNode node1 = new DefaultTreeNode(t1, root);
}
}
public TreeNode getRoot() {
return root;
}
public void addChildNode(ActionEvent actionEvent)
{
List record = NewSearchDao.getRecord(selectedNode);
Iterator it = record.iterator();
while (it.hasNext()) {
Object[] record1 = (Object[]) it.next();
setParentID_dlg((String) record1[0]);
setSortIndex((Integer) record1[2]);
}
}
public void saveChilddNode() {
System.out.println("Save as Child Node ........");
}
}
Primefaces p:treeNode has an attribute styleClass. You could set this dynamically from your backing bean. The view would look like:
<p:tree>
<p:treeNode styleClass="#{treeBean.styleClass}">
<h:outputText value="#{node}" />
</p:treeNode>
</p:tree>
Then add a member styleClass to your TreeBean with get/set method that returns a string representing the style class:
public class TreeBean implements Serializable {
private String styleClass;
...
public String getStyleClass() {
// your style selection logic here
}
...
}
Don't forget to add the style classes to your css.
Unless you set the selectedNode, which you declare as selection="#{treeBean.selectedNode}", to null, it is already selected and the only thing you have to do is to update the tree component from the triggering component; in your case it is:
<p:menuitem update=":yourForm:pTree" /*rest of the stuff*/ />