blob: 80a860e15770f94ac6da986fee070899df1773e6 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.lucene.search;
import java.io.IOException;
import java.util.Collection;
/**
* Reports the positions and optionally offsets of all matching terms in a query
* for a single document
*
* To obtain a {@link MatchesIterator} for a particular field, call {@link #getMatches(String)}.
* Note that you can call {@link #getMatches(String)} multiple times to retrieve new
* iterators, but it is not thread-safe.
*
* @lucene.experimental
*/
public interface Matches extends Iterable<String> {
/**
* Returns a {@link MatchesIterator} over the matches for a single field,
* or {@code null} if there are no matches in that field.
*/
MatchesIterator getMatches(String field) throws IOException;
/**
* Returns a collection of Matches that make up this instance; if it is not
* a composite, then this returns an empty list
*/
Collection<Matches> getSubMatches();
}