org.terrier.querying

Class SiteFilter

java.lang.Object

org.terrier.querying.SiteFilter

All Implemented Interfaces:

PostFilter

public class SiteFilter
extends 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

Fields

Modifier and Type	Field and Description
protected String	site

Fields inherited from interface org.terrier.querying.PostFilter

FILTER_ADJUSTED, FILTER_OK, FILTER_REMOVE

Constructor Summary

Constructors

Constructor and Description
SiteFilter()

Method Summary

Methods

Modifier and Type	Method and Description
byte	filter(Manager m, SearchRequest srq, ResultSet rs, int rank, int docid) 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 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 rank,
          int docid)

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

rank - which array index (rank) in the resultset have we reached

docid - The docid of the currently being procesed result.