X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=wicket%2Fcomponents%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fwicket%2Fbehavior%2FDisableCachingBehavior.java;h=d6ff4d0f619b1e40b409a6e6243a97db4427860e;hb=219f333bf0a4732868fff4ef345ceb0ae320b508;hp=9b2ee590f3c7dd4cb576b4fac6a2e1a22d1b9018;hpb=6288694f32a25957da58df1dd6f0f94c699b5a64;p=utils

diff --git a/wicket/components/src/main/java/org/wamblee/wicket/behavior/DisableCachingBehavior.java b/wicket/components/src/main/java/org/wamblee/wicket/behavior/DisableCachingBehavior.java
index 9b2ee590..d6ff4d0f 100644
--- a/wicket/components/src/main/java/org/wamblee/wicket/behavior/DisableCachingBehavior.java
+++ b/wicket/components/src/main/java/org/wamblee/wicket/behavior/DisableCachingBehavior.java
@@ -19,15 +19,26 @@ import org.apache.wicket.markup.html.WebPage;
 import org.apache.wicket.protocol.http.WebResponse;
 
 /**
- * Behavior to disable browser caching.
+ * <p>
+ * Behavior to disable browser caching. This also means that the page 
+ * automatically expires the first time after it is rendered. 
+ * </p>
+ * 
+ * <p>
+ * Important: To make sure that form data cannot be submitted twice for
+ * the same data using the back button, it is still necessary to explicitly call 
+ * <code>getPage().getPageMap().remove(getPage());</code>
+ * in the <code>onSubmit</code> callback of the form. 
+ * </p>
  * 
  * @author Erik Brakkee
  * 
  */
-public class DisableCachingBehavior extends AbstractPageBehavior {
+public class DisableCachingBehavior extends ExpirePageImmediatelyBehavior {
 
     @Override
     public void setHeaders(WebPage aPage, WebResponse aResponse) {
+        System.out.println("Disabling caching for " + aPage.getClass().getName());
         aResponse.setHeader("Pragma", "no-cache");
         aResponse.setHeader("Cache-Control",
             "no-cache, max-age=0, must-revalidate, no-store");