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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.client;
19  
20  import java.io.IOException;
21  
22  public class DelegatingRetryingCallable<T, D extends RetryingCallable<T>> implements
23      RetryingCallable<T> {
24    protected final D delegate;
25  
26    public DelegatingRetryingCallable(D delegate) {
27      this.delegate = delegate;
28    }
29  
30    @Override
31    public T call() throws Exception {
32      return delegate.call();
33    }
34  
35    @Override
36    public void prepare(boolean reload) throws IOException {
37      delegate.prepare(reload);
38    }
39  
40    @Override
41    public void throwable(Throwable t, boolean retrying) {
42      delegate.throwable(t, retrying);
43    }
44  
45    @Override
46    public String getExceptionMessageAdditionalDetail() {
47      return delegate.getExceptionMessageAdditionalDetail();
48    }
49  
50    @Override
51    public long sleep(long pause, int tries) {
52      return delegate.sleep(pause, tries);
53    }
54  }