KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > net > nutch > searcher > QueryFilter


1 /* Copyright (c) 2004 The Nutch Organization. All rights reserved. */
2 /* Use subject to the conditions in http://www.nutch.org/LICENSE.txt. */
3
4 package net.nutch.searcher;
5
6 import org.apache.lucene.search.BooleanQuery;
7
8 /** Extension point for query translation. Permits one to add metadata to a
9  * query. All plugins found which implement this extension point are run
10  * sequentially on the query.
11  */
12 public interface QueryFilter {
13   /** The name of the extension point. */
14   final static String JavaDoc X_POINT_ID = QueryFilter.class.getName();
15
16   /** Adds clauses or otherwise modifies the BooleanQuery that will be
17    * searched. */
18   BooleanQuery filter(Query input, BooleanQuery translation)
19     throws QueryException;
20 }
21
Popular Tags