| /* |
| * 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.spans; |
| |
| |
| import org.apache.lucene.index.PostingsEnum; |
| import org.apache.lucene.index.Term; |
| |
| import java.io.IOException; |
| |
| /** |
| * An interface defining the collection of postings information from the leaves |
| * of a {@link org.apache.lucene.search.spans.Spans} |
| * |
| * @lucene.experimental |
| */ |
| public interface SpanCollector { |
| |
| /** |
| * Collect information from postings |
| * @param postings a {@link PostingsEnum} |
| * @param position the position of the PostingsEnum |
| * @param term the {@link Term} for this postings list |
| * @throws IOException on error |
| */ |
| public void collectLeaf(PostingsEnum postings, int position, Term term) throws IOException; |
| |
| /** |
| * Call to indicate that the driving Spans has moved to a new position |
| */ |
| public void reset(); |
| |
| } |