I am trying to preserve the components parameter values between event
invocations by storing them in a map that gets passed to all my action links
and forms.
I have added t:parameters="parms" to all my action links and see that in
request object the parameters are set. However in the code below the presetup
routine can get null values for the assoicated @Parameter members. On the first
invocation of onActionFromTimeClicked the @Parameter members do get set but on
subsequent invocations they become are null even though teh request passes
values?
When I inspect the links in the browser the parameter values are all there. Why
does the component sometimes not set parameters?
John
public class Diary {
@Parameter
private Integer workIdParm;
@Parameter
private Integer venueIdParm;
@Parameter
private Integer reservationIdParm;
@Property
private HashMap parms;
...
private void presetup() {
bookingForm.clearErrors();
parms = new HashMap();
parms.put("workIdParm", workIdParm);
parms.put("venueIdParm", venueIdParm);
parms.put("reservationIdParm", reservationIdParm);
for (String pname : request.getParameterNames()) {
log.debug("REQ: " + pname + "=" + request.getParameter(pname));
}
log.debug("preload:" + parms);
}
@SetupRender
void setup() throws Exception {
log.debug("setup diary parms=" + workIdParm + "," + venueIdParm + "," +
reservationIdParm);
Reservation reservation = null;
if (reservationIdParm != null) {
reservation = reservationFacade.getReservation(reservationIdParm);
log.debug("load parms from reservation" + workIdParm + "," +
venueIdParm);
}
presetup();
...
}
void onActionFromTimeClicked(long timeClicked) {
presetup();
startTimex = new Date(timeClicked);
startDatex = new Date((startTimex.getTime() / TimeConstants.MS_DAY) *
TimeConstants.MS_DAY);
log.debug("selected " + new Date(timeClicked) + " " + startDatex);
loadTimes(15);
loadCallInTimes();
ajaxResponseRenderer.addRender(timeZone).addRender(formZone);
}
...
}
----- Original Message -----
From: Thiago H de Paula Figueiredo
To: Tapestry users
Sent: Monday, December 02, 2013 3:59 PM
Subject: Re: component paramter frustrations
On Mon, 02 Dec 2013 12:14:39 -0200, John <[email protected]> wrote:
> Yes that's right, my page is passing some key id values to deeper
> components, but the paramter value is lost after the intitial component
> render. That's my challenge.
How are you updating the page after the initial render? Zone updates?
EventLink? Form? As Lance said, you should use the event context of
EventLink and ActionLink and even Form so you don't miss them.
--
Thiago H. de Paula Figueiredo
Tapestry, Java and Hibernate consultant and developer
http://machina.com.br
Help me spend a whole month working on Tapestry bug fixes and
improvements: http://igg.me/at/t5month
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