org.apache.nutch.searcher
Interface QueryFilter

All Superinterfaces:

Configurable, Pluggable

All Known Implementing Classes:

BasicQueryFilter, CCQueryFilter, DateQueryFilter, FieldQueryFilter, LanguageQueryFilter, RawFieldQueryFilter, RelTagQueryFilter, SiteQueryFilter, TypeQueryFilter, URLQueryFilter

public interface QueryFilter
extends Pluggable, Configurable

Extension point for query translation. Permits one to add metadata to a query. All plugins found which implement this extension point are run sequentially on the query.

Field Summary

static String

X_POINT_ID The name of the extension point.

Method Summary

BooleanQuery

filter(Query input, BooleanQuery translation) Adds clauses or otherwise modifies the BooleanQuery that will be searched.

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

X_POINT_ID

static final String X_POINT_ID

The name of the extension point.

Method Detail

filter

BooleanQuery filter(Query input,
                    BooleanQuery translation)
                    throws QueryException

Adds clauses or otherwise modifies the BooleanQuery that will be searched.

Throws:

QueryException