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authorYohann Roussel <yroussel@google.com>2014-03-19 16:25:37 +0100
committerYohann Roussel <yroussel@google.com>2014-03-20 15:13:33 +0100
commit4eceb95409e844fdc33c9c706e1dc307bfd40303 (patch)
treeee9f4f3fc79f757c79081c336bce4f1782c6ccd8 /guava/src/com/google/common/util/concurrent/SettableFuture.java
parent3d2402901b1a6462e2cf47a6fd09711f327961c3 (diff)
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Initial Jack import.
Change-Id: I953cf0a520195a7187d791b2885848ad0d5a9b43
Diffstat (limited to 'guava/src/com/google/common/util/concurrent/SettableFuture.java')
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diff --git a/guava/src/com/google/common/util/concurrent/SettableFuture.java b/guava/src/com/google/common/util/concurrent/SettableFuture.java
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+/*
+ * Copyright (C) 2009 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 javax.annotation.Nullable;
+
+/**
+ * A {@link ListenableFuture} whose result may be set by a {@link #set(Object)}
+ * or {@link #setException(Throwable)} call. It may also be cancelled.
+ *
+ * @author Sven Mawson
+ * @since 9.0 (in 1.0 as {@code ValueFuture})
+ */
+public final class SettableFuture<V> extends AbstractFuture<V> {
+
+ /**
+ * Creates a new {@code SettableFuture} in the default state.
+ */
+ public static <V> SettableFuture<V> create() {
+ return new SettableFuture<V>();
+ }
+
+ /**
+ * Explicit private constructor, use the {@link #create} factory method to
+ * create instances of {@code SettableFuture}.
+ */
+ private SettableFuture() {}
+
+ /**
+ * Sets the value of this future. This method will return {@code true} if
+ * the value was successfully set, or {@code false} if the future has already
+ * been set or cancelled.
+ *
+ * @param value the value the future should hold.
+ * @return true if the value was successfully set.
+ */
+ @Override
+ public boolean set(@Nullable V value) {
+ return super.set(value);
+ }
+
+ /**
+ * Sets the future to having failed with the given exception. This exception
+ * will be wrapped in an {@code ExecutionException} and thrown from the {@code
+ * get} methods. This method will return {@code true} if the exception was
+ * successfully set, or {@code false} if the future has already been set or
+ * cancelled.
+ *
+ * @param throwable the exception the future should hold.
+ * @return true if the exception was successfully set.
+ */
+ @Override
+ public boolean setException(Throwable throwable) {
+ return super.setException(throwable);
+ }
+}