org.terrier.querying
Class SiteFilter

java.lang.Object
  org.terrier.querying.SiteFilter

All Implemented Interfaces:

PostFilter

public class SiteFilter
extends java.lang.Object
implements PostFilter

Filter that removes hosts which dont match an appropriate site: constraint, as specified in a control. E.g. site:uk will remove any documents which do not have a hostname ending in uk Assumes that the metadata set has already been decorated with the url.

Since:

3.0

Author:

Craig Macdonald

Field Summary

protected java.lang.String

site

Fields inherited from interface org.terrier.querying.PostFilter

FILTER_ADJUSTED, FILTER_OK, FILTER_REMOVE

Constructor Summary

SiteFilter()

Method Summary

byte	filter(Manager m, SearchRequest srq, ResultSet rs, int DocAtNumber, int DocNo) Called for each result in the resultset, used to filter out unwanted results.
void	new_query(Manager m, SearchRequest srq, ResultSet rs) Called before the processing of a resultset using this PostFilter is applied.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

site

protected java.lang.String site

Constructor Detail

SiteFilter

public SiteFilter()

Method Detail

new_query

public void new_query(Manager m,
                      SearchRequest srq,
                      ResultSet rs)

Called before the processing of a resultset using this PostFilter is applied. Can be used to save information for the duration of the query.

Specified by:

new_query in interface PostFilter

Parameters:

m - The manager controlling this query

srq - The search request being processed

rs - the resultset that is being iterated through

filter

public byte filter(Manager m,
                   SearchRequest srq,
                   ResultSet rs,
                   int DocAtNumber,
                   int DocNo)

Called for each result in the resultset, used to filter out unwanted results.

Specified by:

filter in interface PostFilter

Parameters:

m - The manager controlling this query

srq - The search request being processed

DocAtNumber - which array index in the resultset have we reached

DocNo - The document number of the currently being procesed result.