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 */ 018package org.apache.hadoop.hbase.master.procedure; 019 020import org.apache.hadoop.hbase.TableName; 021import org.apache.yetus.audience.InterfaceAudience; 022 023/** 024 * Procedures that operates on a specific Table (e.g. create, delete, snapshot, ...) must implement 025 * this interface to allow the system handle the lock/concurrency problems. 026 */ 027@InterfaceAudience.Private 028public interface TableProcedureInterface { 029 public enum TableOperationType { 030 CREATE, 031 DELETE, 032 DISABLE, 033 EDIT, 034 ENABLE, 035 READ, 036 REGION_EDIT, 037 REGION_SPLIT, 038 REGION_MERGE, 039 REGION_ASSIGN, 040 REGION_UNASSIGN, 041 REGION_GC, 042 MERGED_REGIONS_GC/* region operations */ 043 }; 044 045 /** Returns the name of the table the procedure is operating on */ 046 TableName getTableName(); 047 048 /** 049 * Given an operation type we can take decisions about what to do with pending operations. e.g. if 050 * we get a delete and we have some table operation pending (e.g. add column) we can abort those 051 * operations. 052 * @return the operation type that the procedure is executing. 053 */ 054 TableOperationType getTableOperationType(); 055}