| package org.apache.lucene.store; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.File; |
| |
| /** |
| * Base class for file system based locking implementation. |
| */ |
| |
| public abstract class FSLockFactory extends LockFactory { |
| |
| /** |
| * Directory for the lock files. |
| */ |
| protected File lockDir = null; |
| |
| /** |
| * Set the lock directory. This method can be only called |
| * once to initialize the lock directory. It is used by {@link FSDirectory} |
| * to set the lock directory to itself. |
| * Subclasses can also use this method to set the directory |
| * in the constructor. |
| */ |
| protected final void setLockDir(File lockDir) { |
| if (this.lockDir != null) |
| throw new IllegalStateException("You can set the lock directory for this factory only once."); |
| this.lockDir = lockDir; |
| } |
| |
| /** |
| * Retrieve the lock directory. |
| */ |
| public File getLockDir() { |
| return lockDir; |
| } |
| |
| } |