java/src/main/com/google/appengine/api/taskqueue/FutureAdapter.java

   1 // Copyright 2013 Google Inc. All rights reserved.
   2
   3 package com.google.appengine.api.taskqueue;
   4
   5 import com.google.appengine.api.utils.FutureWrapper;
   6
   7 import java.util.concurrent.Future;
   8
   9 /**
  10  * {@code FutureAdapter} is a simple {@link FutureWrapper} for situations where
  11  * no conversion of exceptions is required. This class is thread-safe.
  12  *
  13  * @param <K> The type of this {@link Future}
  14  * @param <V> The type of the wrapped {@link Future}
  15  */
  16 abstract class FutureAdapter<K, V> extends FutureWrapper<K, V> {
  17
  18   FutureAdapter(Future<K> parent) {
  19     super(parent);
  20   }
  21
  22   protected final Throwable convertException(Throwable cause) {
  23     return cause;
  24   }
  25 }