+/*
+ * 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.page;
+
+import java.util.logging.Logger;
+
+import org.apache.wicket.markup.html.WebPage;
+
+/**
+ * Bahevior that will expire a page when the page is disabled.
+ * Implementations should implemnet
+ *
+ * @author Erik Brakkee
+ *
+ */
+public abstract class ExpireBehavior extends AbstractPageBehavior {
+ private static final Logger LOGGER = Logger.getLogger(ExpireBehavior.class.getName());
+
+ /**
+ * Constructs the behavior.
+ */
+ public ExpireBehavior() {
+ super();
+ }
+
+ @Override
+ public void onDetach(WebPage aPage) {
+ if (isExpired(aPage)) {
+ aPage.getPageMap().remove(aPage);
+ }
+ }
+
+ /**
+ * Must be implemented to determine if a page is expired.
+ * @param aPage Page to check. If a behavior instance is only used on one page then this
+ * argument is always that page so it can bne ignored in that case.
+ * @return
+ */
+ protected abstract boolean isExpired(WebPage aPage);
+
+}