[jboss-user] [JBoss Seam] - please help me out of this problem
Hi
I have a SFSB as follows, it has an entity named "user", in page when I change a
list box I want the selected user to be loaded but nothing will be displayed
| @Stateful
| @Name("userRegister")
| @Scope(ScopeType.SESSION)
| public class UserRegisterAction implements UserRegister {
|
| private Log logger = LogFactory.getLog(UserRegisterAction.class);
|
| private User user;
| private String selectedUsername = "0";
|
| //rest of the codes....
|
| public void userListValueChanged(ValueChangeEvent event) {
|
| try {
| selectedUsername = (String) event.getNewValue();
| if(selectedUsername.equals("0")){
| logger.debug("new user");
| User u = new User();
| setUser(u);
| }else{
| logger.debug("edit:"+ selectedUsername);
| User u = userDao.load(selectedUsername);
| setUser(u);
| logger.debug("test:"+ user.getUsername());
| }
| } catch (Exception e) {
| e.printStackTrace();
| }
| }
|
|
|
| //getters and setters....
|
now in xhtml file:
| <h:panelGroup id="exportUser">
| <h:outputLabel id="userL"
| value="#{bundle['userDefination.group']}"
for="groupMenu" />
| <t:selectOneMenu id="userMenu" required="false"
value="#{userRegister.selectedUsername}"
| valueChangeListener="#{userRegister.userListValueChanged}"
| onchange="submit(this)" >
| <f:selectItem itemLabel="New User ..." itemValue="0"
/>
| <f:selectItems id="userList"
value="#{userRegister.allUsers}" />
| </t:selectOneMenu>
| </h:panelGroup>
|
|
after the user change the list this form will submit but any reference to
userRegister.user.username or other properties of user don't work .
at first, user is not null it is a user with null property values. the thing wondering me
is that in change value listener I load the user with new values but new values won't
be displayed at page!!!
and #{userRegister.user} returns the object reference of User with the same value that it
was already.
any help would be appreciated
thanks
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