How to make use of Listener to auto refresh items in SelectOneMenu

Question

Hi,
I have a transaction jsp page that make use of the SelectOneMenu of which the Selectitems for example consists of all the item_code are added to the dropdownitems through the sessionBean1 ArrayList.
The problem started when new item_code are being added to the SQL tables using other JSP that allow user to input new item code.
JSF transaction page using SelectOneMenu could not effectively updated the options to include and reflect the new item subsequently added simply because the page has been rendered to the user .
I believe using some sort of listener , whenever any action or event took place , JSP that are having the particular UI components being rendered could be auto refresh at the client side of JSP html page.
Could anyone provide some hints?
Thank

Answer 1

Hi,
Thank for the suggestion,
In fact I am looking for two possiblity on how to overcome this sort of issues,
Firstly , if the JSF page has not been rendered , you could always make use of the sessionbean1 to do the job , for example if you add a new item to the selectOneMenu dropitems, you could make use of this method to update the list of items in the dropitems , though it would always be the last items on the sorted list .
Secondly , using some sort of autorefresh to push to the client to inform the user that new item have been added , advise them to manual refresh the page.
I am in fact using the first method to add new item to the dropdownmenu for those JSP that involve page forwarding and redirect such as shopping basket / cart beans .
My concern is when displaying the list of real-time shopping items available to the user , method 1 would not work at all , simply because JSF page was already rendered to the user browser, only beaming alerting message seems to be able to overcome such shortcoming when scenario demand realtime.
Thank