*/
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.persistence.PersistenceException;
+import javax.persistence.TransactionRequiredException;
+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 (TransactionRequiredException e) {
+ throw e;
+ } catch (PersistenceException e) {
+ throw e;
+ } catch (Exception e) {
+ LOGGER.log(Level.WARNING, "Could not flush entitymanager", e);
+ }
}
}