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author | Yohann Roussel <yroussel@google.com> | 2014-03-19 16:25:37 +0100 |
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committer | Yohann Roussel <yroussel@google.com> | 2014-03-20 15:13:33 +0100 |
commit | 4eceb95409e844fdc33c9c706e1dc307bfd40303 (patch) | |
tree | ee9f4f3fc79f757c79081c336bce4f1782c6ccd8 /guava/src/com/google/common/util/concurrent/SettableFuture.java | |
parent | 3d2402901b1a6462e2cf47a6fd09711f327961c3 (diff) | |
download | toolchain_jack-4eceb95409e844fdc33c9c706e1dc307bfd40303.zip toolchain_jack-4eceb95409e844fdc33c9c706e1dc307bfd40303.tar.gz toolchain_jack-4eceb95409e844fdc33c9c706e1dc307bfd40303.tar.bz2 |
Initial Jack import.
Change-Id: I953cf0a520195a7187d791b2885848ad0d5a9b43
Diffstat (limited to 'guava/src/com/google/common/util/concurrent/SettableFuture.java')
-rw-r--r-- | guava/src/com/google/common/util/concurrent/SettableFuture.java | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/guava/src/com/google/common/util/concurrent/SettableFuture.java b/guava/src/com/google/common/util/concurrent/SettableFuture.java new file mode 100644 index 0000000..23e14f9 --- /dev/null +++ b/guava/src/com/google/common/util/concurrent/SettableFuture.java @@ -0,0 +1,70 @@ +/* + * 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); + } +} |