Initial Jack import.

Change-Id: I953cf0a520195a7187d791b2885848ad0d5a9b43

1 files changed, 49 insertions, 0 deletions

diff --git a/guava/src/com/google/common/util/concurrent/FutureCallback.java b/guava/src/com/google/common/util/concurrent/FutureCallback.java
new file mode 100644
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+++ b/guava/src/com/google/common/util/concurrent/FutureCallback.java
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+/*
+ * Copyright (C) 2011 The Guava Authors
+ *
+ * Licensed 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 com.google.common.util.concurrent;
+
+import com.google.common.annotations.Beta;
+
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+
+/**
+ * A callback for accepting the results of a {@link java.util.concurrent.Future}
+ * computation asynchronously.
+ *
+ * <p>To attach to a {@link ListenableFuture} use {@link Futures#addCallback}.
+ *
+ * @author Anthony Zana
+ * @since 10.0
+ */
+@Beta
+public interface FutureCallback<V> {
+  /**
+   * Invoked with the result of the {@code Future} computation when it is
+   * successful.
+   */
+  void onSuccess(V result);
+
+  /**
+   * Invoked when a {@code Future} computation fails or is canceled.
+   *
+   * <p>If the future's {@link Future#get() get} method throws an {@link
+   * ExecutionException}, then the cause is passed to this method. Any other
+   * thrown object is passed unaltered.
+   */
+  void onFailure(Throwable t);
+}