| /* |
| * 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; |
| import java.util.Collections; |
| import java.util.Iterator; |
| |
| class AssertingMatches implements Matches { |
| |
| private final Matches in; |
| |
| AssertingMatches(Matches matches) { |
| this.in = matches; |
| } |
| |
| @Override |
| public MatchesIterator getMatches(String field) throws IOException { |
| MatchesIterator mi = in.getMatches(field); |
| if (mi == null) |
| return null; |
| return new AssertingMatchesIterator(mi); |
| } |
| |
| @Override |
| public Collection<Matches> getSubMatches() { |
| return Collections.singleton(in); |
| } |
| |
| @Override |
| public Iterator<String> iterator() { |
| return in.iterator(); |
| } |
| |
| public static Matches unWrap(Matches m) { |
| while (m instanceof AssertingMatches) { |
| m = (((AssertingMatches)m).in); |
| } |
| return m; |
| } |
| } |