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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.hadoop.hbase.procedure;
19  
20  import org.apache.hadoop.classification.InterfaceAudience;
21  import org.apache.hadoop.classification.InterfaceStability;
22  import org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager;
23  
24  @InterfaceAudience.Private
25  @InterfaceStability.Evolving
26  public abstract class ProcedureManager {
27  
28    /**
29     * Return the unique signature of the procedure. This signature uniquely
30     * identifies the procedure. By default, this signature is the string used in
31     * the procedure controller (i.e., the root ZK node name for the procedure)
32     */
33    public abstract String getProcedureSignature();
34  
35    @Override
36    public boolean equals(Object obj) {
37      if (!(obj instanceof ProcedureManager)) {
38        return false;
39      }
40      ProcedureManager other = (ProcedureManager)obj;
41      return this.getProcedureSignature().equals(other.getProcedureSignature());
42    }
43  
44    @Override
45    public int hashCode() {
46      return this.getProcedureSignature().hashCode();
47    }
48  }