extend NonCachingImage instead
-igor
On 9/7/07, fero <[EMAIL PROTECTED]> wrote:
>
>
> Hi,
> I have a Panel with some images (charts generated with jfreechart) and a
> datatable. This Panel is in AjaxTabbedPanel and every time it is accessed
> data table is evaluated and charts renewed. But only table is updated and
> charts stay the same (they are loaded from cache), they are reloaded only
> by
> pressing CTRL-F5. How to make them update automatically?
>
> Code:
> ***********************Panel with charts and table***********************
>
> public CelkoveEmisiePanel(String id, Collection celkoveEmisie) {
> super(id);
> add(emisieTable(celkoveEmisie));
>
> JFreeChartImage poplatkyChart = new
> JFreeChartImage("chart1",
> pieChart(createDatasetPoplatky(celkoveEmisie),"Poplatky"), 300, 300);
> poplatkyChart.setOutputMarkupId(true);
> add(poplatkyChart);
>
> JFreeChartImage mnozstvoChart = new
> JFreeChartImage("chart2",
> pieChart(createDatasetMnozstvo(celkoveEmisie),"Vypúšťané množstvo"), 300,
> 300);
> mnozstvoChart.setOutputMarkupId(true);
> add(mnozstvoChart);
> }
>
>
> *******JFreeChartImage from
> http://cwiki.apache.org/WICKET/jfreechart-and-wicket-example.html*****
>
> public class JFreeChartImage extends Image {
>
> private int width;
> private int height;
>
> public JFreeChartImage(String id, JFreeChart chart, int width, int
> height){
> super(id, new Model(chart));
> this.width = width;
> this.height = height;
> }
>
> protected Resource getImageResource() {
> return new DynamicImageResource(){
>
> protected byte[] getImageData() {
> JFreeChart chart = (JFreeChart)getModelObject();
> return toImageData(chart.createBufferedImage(width,
> height));
> }
>
> protected void setHeaders(WebResponse response) {
> if (isCacheable()) {
> super.setHeaders(response);
> } else {
> response.setHeader("Pragma", "no-cache");
> response.setHeader("Cache-Control",
> "no-cache");
> response.setDateHeader("Expires", 0);
> }
> }
> };
> }
>
> }
> --
> View this message in context:
> http://www.nabble.com/Disable-loading-image-from-browser-cache-tf4402977.html#a12560615
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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