Hi,
The if(!isEnabled()) will happen though, because the link is not really
disabled on the client side, but it does prevent
doSomeHeavyWeightProcessing to be called the second time which is what I
need.
What are the pros / cons of (ab)using setEnabled for this instead of
just a member variable)?
Thanks,
Matthijs
Timo Rantalaiho wrote:
On Wed, 06 Feb 2008, Matthijs Wensveen wrote:
I have a Link (not Ajax) on a component that does some heavyweight
processing in onClick. During this processing I want to block other
clicks from the same user. Is there a generic way to block multiple
requests on the same link? I would prefer a solution without Ajax /
JavaScript, but if that's impossible then that's okay.
Components are stateful, so maybe you could just keep the
state in your Link?
@Override onClick() {
if (!isEnabled()) {
return; // this shouldnt happen though?
}
try {
setEnabled(false);
doSomeHeavyWeightProcessing();
} finally {
setEnabled(true);
}
}
This creates a little race condition but if you can produce
it you could try using a real lock mechanism.
Best wishes,
Timo
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