Changing ActiveIndex in TabMenu - primefaces

Question

I'm using Primefaces 3.5 and have run into an issue with changing the ActiveIndex. ActiveIndex doesn't change when going between tabs. This is my TabMenu code:
<h:form id="formMenu">
<p:tabMenu id="tabMenu" activeIndex="#{toolbarBean.currentTab}">
<p:menuitem value="Main" action="#{toolbarBean.changeActiveIndex(0)}" />
<p:menuitem value="Page2" action="#{toolbarBean.changeActiveIndex(1)}" />
<p:menuitem value="Page3" actionListener="#{toolbarBean.changeActiveIndex(2)}" />
<p:menuitem value="Page4" action="#{toolbarBean.changeActiveIndex(3)}" />
</p:tabMenu>
</form>
toolbarBean.java
#Named
#SessionScoped
public class toolbarBean implements Serializable {
private int currentTab;
public int getCurrentTab() {
return currentTab;
}
public void setCurrentTab(int currentTab) {
this.currentTab = currentTab;
}
public String changeActiveIndex(int currentTab) {
this.currentTab = currentTab;
switch (currentTab) {
case 0:
return "/main";
case 1:
return "/page2";
case 2:
return "/page3";
case 3:
return "/page4";
default:
return "/page5";
}
}
}
The action part works properly where the variable currentTab gets assigned the right value. However, once it is running the page redirect part, toolbarBean is being reset and activeIndex starts off at 0 again. Does anyone have any ideas on what I'm doing wrong?

Answer 1

Have a look at my answer in this question:
How to change activeindex in TabMenu
I think it's what you are looking for.
Edit:
Here is the complete answer:
I have found a solution in the PrimeFaces showcase. You can add a request parameter to the menuitem and append this parameter to your url. So no backing bean is needed to keep the active index:
<p:tabMenu activeIndex="#{param.i}">
<p:menuitem value="Home" icon="ui-icon-home" url="page1.xhtml?i=0">
<f:param name="i" value="0" />
</p:menuitem>
<p:menuitem value="Search" icon="ui-icon-search" url="page2.xhtml?i=1">
<f:param name="i" value="1" />
</p:menuitem>
...
</p:tabMenu>

Answer 2

I've unsuccessfully tried to reproduce the error.
I believe that the code sample I used has the features you need. Check it out:
*The View
<p:layout fullPage="true">
<p:layoutUnit position="north" size="100" header="Top" resizable="true" closable="true" collapsible="true">
<h:form id="formMenu">
<p:tabMenu id="tabMenu" activeIndex="#{toolbarBean.currentTab}">
<p:menuitem value="Main" action="#{toolbarBean.changeActiveIndex(0)}" />
<p:menuitem value="Page2" action="#{toolbarBean.changeActiveIndex(1)}" />
<p:menuitem value="Page3" action="#{toolbarBean.changeActiveIndex(2)}" />
<p:menuitem value="Page4" action="#{toolbarBean.changeActiveIndex(3)}" />
</p:tabMenu>
</h:form>
</p:layoutUnit>
<p:layoutUnit position="south" size="100" header="Bottom" resizable="true" closable="true" collapsible="true">
<h:outputText value="South unit content." />
</p:layoutUnit>
<p:layoutUnit position="west" size="200" header="Left" resizable="true" closable="true" collapsible="true">
<h:outputText value="West unit content." />
</p:layoutUnit>
<p:layoutUnit position="east" size="200" header="Right" resizable="true" closable="true" collapsible="true" effect="drop">
<h:outputText value="Right unit content." />
</p:layoutUnit>
<p:layoutUnit position="center">
MAIN
</p:layoutUnit>
</p:layout>
The Managed Bean
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
#ManagedBean
#SessionScoped
public class ToolbarBean implements Serializable {
private int currentTab;
public int getCurrentTab() {
return currentTab;
}
public void setCurrentTab(int currentTab) {
this.currentTab = currentTab;
}
public String changeActiveIndex(int currentTab) {
this.currentTab = currentTab;
switch (currentTab) {
case 0:
return "main";
case 1:
return "page2";
case 2:
return "page3";
case 3:
return "page4";
default:
return "page5";
}
}
}
Note that the ToolbarBean is almost the same. As you are using #Named, see if the ManagedBean is indeed in session scope.
Another thing worth mentioning is that main.xhml, page1.xhtml, page2.xhtml and etc, has the same content except for the center layout unit content.