primefaces selectCheckboxMenu empty selected list - jsf

Question

I'm trying to get selected values from a selectCheckboxMenu, but always the selection list is empty. this's my jsf form:
<h:form id="form">
<p:dataTable id="singleDT" var="user" value="#{roleBean.users}"
rowKey="#{roleBean.users}" rows="12" paginator="true"
rowsPerPageTemplate="12,15,22" paginatorPosition="bottom"
emptyMessage="Aucun compte présent." reflow="true"
editable="false" selectionMode="single">
<p:column headerText="Login" filterBy="#{user.username}">
<h:outputText value="#{user.username}" />
</p:column>
<p:column headerText="Nom" filterBy="#{user.lastname}">
<h:outputText value="#{user.lastname}" />
</p:column>
<p:column headerText="Prénom" filterBy="#{user.firstName}">
<h:outputText value="#{user.firstName}" />
</p:column>
<p:column headerText="Email" filterBy="#{user.emal}">
<h:outputText value="#{user.emal}" />
</p:column>
<p:column headerText="Affécter Roles">
<p:selectCheckboxMenu id="menu" value="#{roleBean.rolesselected}"
label="Roles"
filter="false" filterMatchMode="startsWith"
panelStyle="width:135px" converter="#{roleconvertor}" immediate="true" >
<f:selectItems value="#{roleBean.roles}" var="n"
itemValue="#{n}" itemLabel="#{n.description}"
itemDescription="#{n.rolename}" />
</p:selectCheckboxMenu>
</p:column>
<p:column width="90">
<p:commandButton styleClass="ui-yelbutton" immediate="true" process="#form" value="Valider"
title="Remove"
ajax="true" action="#{roleBean.addrole(user)}" />
</p:column>
</p:dataTable>
</h:form>
Here's the managedBean related. when I run the jsf page I show the list of value and I can check it. also tne converter was worked but when I try to test a size of selectedrole it's always 0.
public class RoleBean implements Serializable {
#Autowired
UserCatalogueService userservice;
#Autowired
Roleservice roleservice;
List< Role> roles;
List<UserCatalogue> users ;
private static final long serialVersionUID = 1L;
String notification;
private List<Role> rolesselected = new ArrayList<Role>();
#PostConstruct
public void init() {
roles=roleservice.findAll();
}
public List<Role> getRolesselected() {
return rolesselected;
}
public void setRolesselected(List<Role> rolesselected) {
this.rolesselected = rolesselected;
}
public List<UserCatalogue> getUsers() {
List<UserCatalogue> users= userservice.findAll();
List<UserCatalogue> users1= userservice.findAll();
users1.clear();
for(int i=0; i< users.size(); i++)
{
if(users.get(i).getRoles().size()==0)
{
System.out.println(users.get(i).getFirstName()+ "est un nouvel utilisateur");
//users.remove(i);
users1.add(users.get(i));
}
}
return users1;
}
public String getNotification() {
notification=getUsers().size()+" Alerts";
return notification;
}
public void setNotification(String notification) {
this.notification = notification;
}
public void setUsers(List<UserCatalogue> users) {
this.users = users;
}
public List<Role> getRoles() {
return roleservice.findAll();
}
public void setRoles(List<Role> roles) {
this.roles = roles;
}
public void addrole( UserCatalogue user)
{
System.out.println("the size of list is "+rolesselected.size());
}
}

Answer 1

Try to change rolesselected from List to array using the []