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annotate graal/com.oracle.max.base/src/com/sun/max/lang/Function.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children
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1 /*
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2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.max.lang;
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25 import java.util.concurrent.*;
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27 /**
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28 * Creates a function wrapper for a method that returns a value and may throw a checked exception.
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29 * This interface extends {@link Callable} so that {@code Function}s can be used with an {@link ExecutorService}.
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30 */
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31 public interface Function<T> extends Callable<T> {
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32
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33 /**
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34 * Computes a result, or throws an exception if unable to do so.
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35 *
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36 * @return computed result (which will be {@code null} if {@code Result_Type} is {@link Void})
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37 * @throws Exception if unable to compute a result
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38 */
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39 T call() throws Exception;
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40
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41 }