isessionsettings.java

Wicket一个开发Java Web应用程序框架。它使得开发web应用程序变得容易而轻松。 Wicket利用一个POJO data beans组件使得它可以与任何持久层技术相结合。

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.wicket.settings;

import org.apache.wicket.IPageFactory;
import org.apache.wicket.session.pagemap.IPageMapEvictionStrategy;

/**
 * Interface for session related settings
 * <p>
 * <i>pageFactory </i>- The factory class that is used for constructing page instances.
 * <p>
 * <i>pageMapEvictionStrategy </i>- The strategy for evicting pages from page maps when they are too
 * full
 * <p>
 * <i>maxPageMaps </i>- The maximum number of page maps allowed in a session (to prevent denial of
 * service attacks)
 * <p>
 * 
 * @author Igor Vaynberg (ivaynberg)
 */
public interface ISessionSettings
{
	/**
	 * Gets maximum number of page maps allowed in this session
	 * 
	 * @return Maximum number of page maps
	 */
	int getMaxPageMaps();

	/**
	 * Gets the factory to be used when creating pages
	 * 
	 * @return The default page factory
	 */
	IPageFactory getPageFactory();

	/**
	 * Gets the strategy for evicting pages from the page map.
	 * 
	 * @return the strategy for evicting pages from the page map
	 */
	IPageMapEvictionStrategy getPageMapEvictionStrategy();

	/**
	 * Sets maximum number of page maps allowed in this session
	 * 
	 * @param maxPageMaps
	 *            Maximum number of page maps
	 */
	void setMaxPageMaps(int maxPageMaps);

	/**
	 * Sets the factory to be used when creating pages.
	 * 
	 * @param pageFactory
	 *            The default factory
	 */
	void setPageFactory(final IPageFactory pageFactory);

	/**
	 * Sets the strategy for evicting pages from the page map.
	 * 
	 * @param pageMapEvictionStrategy
	 *            the strategy for evicting pages from the page map
	 */
	void setPageMapEvictionStrategy(IPageMapEvictionStrategy pageMapEvictionStrategy);

	/**
	 * Sets whether the id of a page should be unique across the entire session. Default is false,
	 * which means that a page id is unique per pagemap.
	 * 
	 * @param value
	 */
	void setPageIdUniquePerSession(boolean value);

	/**
	 * Returns whether the page id is unique per session. If the page id is not unique per session,
	 * it is only unique per pagemap.
	 * 
	 * @return
	 */
	boolean isPageIdUniquePerSession();
}