cn.edu.hfut.dmic.webcollector.fetcher

接口 NextFilter

所有已知实现类:

HashSetNextFilter

public interface NextFilter

作者:

hu

方法概要

限定符和类型	方法和说明
CrawlDatum	filter(CrawlDatum nextItem, CrawlDatum referer) if the crawler visit http://a.com/ and detect http://a.com/b.html then nextItem = http://a.com/b.html and referer = http://a.com/ if you want to filter nextItem, return null else you should return nextItem

方法详细资料

filter

CrawlDatum filter(CrawlDatum nextItem,
                  CrawlDatum referer)

if the crawler visit http://a.com/ and detect http://a.com/b.html then nextItem = http://a.com/b.html and referer = http://a.com/ if you want to filter nextItem, return null else you should return nextItem

参数:

nextItem - one of the detected crawldatums

referer - the crawldatum of the page where nextItem is detected

返回: