001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.hadoop.fs;
019
020 import org.apache.hadoop.classification.InterfaceAudience;
021 import org.apache.hadoop.classification.InterfaceStability;
022
023 /**
024 * Specifies semantics for CacheDirective operations. Multiple flags can
025 * be combined in an EnumSet.
026 */
027 @InterfaceAudience.Public
028 @InterfaceStability.Evolving
029 public enum CacheFlag {
030
031 /**
032 * Ignore cache pool resource limits when performing this operation.
033 */
034 FORCE((short) 0x01);
035 private final short mode;
036
037 private CacheFlag(short mode) {
038 this.mode = mode;
039 }
040
041 short getMode() {
042 return mode;
043 }
044 }