*/
package org.wamblee.wicket.behavior;
+import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.apache.wicket.protocol.http.WebResponse;
/**
+ * <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");
@Override
public void onAfterRender(WebPage aPage) {
+ System.out.println("Removing page " + aPage.getClass() + " from the pagemap");
aPage.getPageMap().remove(aPage);
}
*/
package org.wamblee.wicket.behavior;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.annotation.Resource;
import javax.persistence.EntityManager;
+import javax.transaction.Status;
+import javax.transaction.SystemException;
+import javax.transaction.UserTransaction;
import org.apache.wicket.markup.html.WebPage;
/**
- * Behavior to flush the entity manager after rendering of the page.
+ * Behavior to flush the entity manager after rendering of the page.
*
* @author Erik Brakkee
- *
+ *
*/
public class FlushEntityManagerBehavior extends AbstractPageBehavior {
- private EntityManager entityManager;
-
+ private static final Logger LOGGER = Logger
+ .getLogger(FlushEntityManagerBehavior.class.getName());
+
+ private EntityManager entityManager;
+
/**
- * Constructs the behavior.
- * @param aEntityManager Contextual reference to an entitymanager.
+ * Constructs the behavior.
+ *
+ * @param aEntityManager
+ * Contextual reference to an entitymanager.
*/
public FlushEntityManagerBehavior(EntityManager aEntityManager) {
- entityManager = aEntityManager;
+ entityManager = aEntityManager;
}
-
+
@Override
public void onAfterRender(WebPage aPage) {
- entityManager.flush();
+ try {
+ if (entityManager.isOpen()) {
+ entityManager.flush();
+ }
+ } catch (Exception e) { // TODO catch the Entity manager exceptions explicitly and rethrow, but log
+ // the other onees.
+ LOGGER.log(Level.WARNING, "Could not flush entitymanager", e);
+ }
}
}
*/
package org.wamblee.wicket.behavior;
+import java.io.Serializable;
+
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.protocol.http.WebResponse;
*
* @author Erik Brakkee
*/
-public interface PageBehavior {
+public interface PageBehavior extends Serializable {
/**
* To be called as part of the Page's <code>onBeforeRender</code>
--- /dev/null
+/*
+ * Copyright 2005-2010 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.wamblee.wicket.behavior;
+
+import org.apache.wicket.behavior.HeaderContributor;
+import org.apache.wicket.markup.html.CSSPackageResource;
+import org.apache.wicket.markup.html.JavascriptPackageResource;
+
+/**
+ * Reset CSS style to obtain more uniform browser behavior.
+ *
+ * @author Erik Brakkee
+ */
+public class ResetCssBehavior extends HeaderContributor {
+
+ /**
+ * Constructs the behavior.
+ */
+ public ResetCssBehavior() {
+ super(CSSPackageResource.getHeaderContribution(ResetCssBehavior.class, "reset.css"));
+ }
+
+}
package org.wamblee.wicket.behavior;
import javax.persistence.EntityManager;
+import javax.transaction.UserTransaction;
import org.apache.wicket.IPageMap;
import org.apache.wicket.PageParameters;
git://wamblee.org / utils / commitdiff