| /* |
| * Copyright The Apache Software Foundation |
| * |
| * 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.hadoop.hbase.client; |
| |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * Specify Isolation levels in Scan operations. |
| * <p> |
| * There are two isolation levels. A READ_COMMITTED isolation level |
| * indicates that only data that is committed be returned in a scan. |
| * An isolation level of READ_UNCOMMITTED indicates that a scan |
| * should return data that is being modified by transactions that might |
| * not have been committed yet. |
| */ |
| @InterfaceAudience.Public |
| public enum IsolationLevel { |
| |
| READ_COMMITTED(1), |
| READ_UNCOMMITTED(2); |
| |
| IsolationLevel(int value) {} |
| |
| public byte [] toBytes() { |
| return new byte [] { toByte() }; |
| } |
| |
| public byte toByte() { |
| return (byte)this.ordinal(); |
| } |
| |
| public static IsolationLevel fromBytes(byte [] bytes) { |
| return IsolationLevel.fromByte(bytes[0]); |
| } |
| |
| public static IsolationLevel fromByte(byte vbyte) { |
| return IsolationLevel.values()[vbyte]; |
| } |
| } |