1 package org.apache.lucene.index;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
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14 * distributed under the License is distributed on an "AS IS" BASIS,
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20 import java.util.ArrayList;
22 import org.apache.lucene.util.ReaderUtil;
25 * Acts like Lucene 4.x's SlowMultiReaderWrapper for testing
26 * of top-level MultiTermEnum, MultiTermDocs, ...
28 public class SlowMultiReaderWrapper extends MultiReader {
30 public SlowMultiReaderWrapper(IndexReader reader) {
31 super(subReaders(reader));
34 private static IndexReader[] subReaders(IndexReader reader) {
35 ArrayList<IndexReader> list = new ArrayList<IndexReader>();
36 ReaderUtil.gatherSubReaders(list, reader);
37 return list.toArray(new IndexReader[list.size()]);
41 public IndexReader[] getSequentialSubReaders() {
46 public String toString() {
47 return "SlowMultiReaderWrapper(" + super.toString() + ")";