Well each time the page is rendered I believe it's a new instance of
your page, so in your constructor can't you just set a param as
tag=Math.random()
or something along those lines?
Anders Peterson wrote:
On a BookmarkablePageLink I can call setParameter(...) which has this
effect.
How do I, with each request/response cycle, add or change a page
parameter - I can't figure this out?
/Anders
Igor Vaynberg wrote:
the trick is to append a random number as a query parameter. that way
the
browser has to fetch it again because it thinks its a different
document.
-Igor
On 2/28/06, Martijn Dashorst <[EMAIL PROTECTED]> wrote:
Set the headers on the response.
The browser support is a bit flaky as I understand it, from the
numerous
caching problems with pages across browsers (safari, IE and FF work
differently).
Martijn
On 2/28/06, Anders Peterson <[EMAIL PROTECTED]> wrote:
Hi,
On one page I'm displaying dynamic charts (JFreeChart) as images. The
charts, the data they're based on, are constantly changed by the
users.
The problem (as I understand it): The web browser doesn't know that
the
image has changed and therefore (sometimes) uses a cached image. Which
means incorrect data is displayed.
How can I make sure the browser always asks for a fresh image?
/Anders
Image tmpImage2 = new Image("image2", new SpclChartResource() {
public AbstractChartFactory getFactory() {
this.setHeight(300);
this.setWidth(600);
DefaultCategoryDatasetFactory retVal = new
DefaultCategoryDatasetFactory();
retVal.setLegend(true);
retVal.setType(AbstractChartFactory.TYPE_BarChart);
...
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