| /* |
| * 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.codecs; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.IOContext; |
| import org.apache.lucene.store.IndexOutput; |
| import org.apache.lucene.store.Lock; |
| |
| /** |
| * A read-only {@link Directory} that consists of a view over a compound file. |
| * @see CompoundFormat |
| * @lucene.experimental |
| */ |
| public abstract class CompoundDirectory extends Directory { |
| |
| /** Sole constructor. */ |
| protected CompoundDirectory() {} |
| |
| /** |
| * Checks consistency of this directory. |
| * <p> |
| * Note that this may be costly in terms of I/O, e.g. |
| * may involve computing a checksum value against large data files. |
| */ |
| public abstract void checkIntegrity() throws IOException; |
| |
| /** Not implemented |
| * @throws UnsupportedOperationException always: not supported by CFS */ |
| @Override |
| public final void deleteFile(String name) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** Not implemented |
| * @throws UnsupportedOperationException always: not supported by CFS */ |
| @Override |
| public final void rename(String from, String to) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public final void syncMetaData() { |
| } |
| |
| @Override |
| public final IndexOutput createOutput(String name, IOContext context) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public final IndexOutput createTempOutput(String prefix, String suffix, IOContext context) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public final void sync(Collection<String> names) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public final Lock obtainLock(String name) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |