You can also provide the tracker parameter to form, which looks almost
the same as extending form, except that you don't have to extend
form. :)
@Component(parameters={"tracker=customTracker"})
private Form form;
@Persist("flash")
private ValidationTracker customTracker;
public ValidationTracker getCustomTracker() {
if (customTracker == null) {
customTracker = new ValidationTrackerImpl();
}
return customTracker;
}
Robert
On Feb 28, 2008, at 2/283:39 AM , Christian Köberl wrote:
Q: Why does the form show old data and old errors not the newly set
object?
(see:
http://www.nabble.com/-T5--Why-is-default-ValidationTracker-in-Form-marked-Persist-not-Persist%28%22flash%22%29-td11981083.html)
A1: Write your own form extending the tapestry default form:
public class Form extends org.apache.tapestry.corelib.components.Form
{
@Persist("flash")
private ValidationTracker defaultTracker;
@Override
public ValidationTracker getDefaultTracker()
{
if (defaultTracker == null)
defaultTracker = new ValidationTrackerImpl();
return defaultTracker;
}
@Override
public void setDefaultTracker(ValidationTracker defaultTracker)
{
this.defaultTracker = defaultTracker;
}
}
A2: use @Meta("tapestry.persistence-strategy=flash") on your page to
control
the default persistence of components below it. This will result in
*all*
components having a default flash persistence.
@Howard: any better idea?
--
Chris
--
View this message in context:
http://www.nabble.com/Writing-an-FAQ-for-Tapestry-5-tp15719185p15732836.html
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