/* 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.riotfamily.crawler;
/**
* Interface that can be implemented by modules that want to process a page
* when it is crawled.
*
* @author Felix Gnass [fgnass at neteye dot de]
*/
public interface PageHandler {
/**
* Invoked when the crawler starts to crawl.
*/
public void crawlerStarted();
/**
* Invoked for each page that is encountered during a crawler run.
*/
public void handlePage(PageData pageData);
/**
* Invoked when the crawler has finished crawling.
*/
public void crawlerFinished();
/**
* Invoked when the crawler fetches a single page, due to an
* ApplicationEvent indicating that the page was modified.
*/
public void handlePageIncremental(PageData pageData);
}