| package org.apache.lucene.search; |
| |
| import org.apache.lucene.index.IndexReader; |
| import java.io.IOException; |
| import java.io.Serializable; |
| |
| /** |
| * Expert: returns a comparator for sorting ScoreDocs. |
| * |
| * <p>Created: Apr 21, 2004 3:49:28 PM |
| * |
| * @author Tim Jones |
| * @version $Id$ |
| * @since 1.4 |
| */ |
| public interface SortComparatorSource |
| extends Serializable { |
| |
| /** |
| * Creates a comparator for the field in the given index. |
| * @param reader Index to create comparator for. |
| * @param fieldname Field to create comparator for. |
| * @return Comparator of ScoreDoc objects. |
| * @throws IOException If an error occurs reading the index. |
| */ |
| ScoreDocComparator newComparator (IndexReader reader, String fieldname) |
| throws IOException; |
| } |