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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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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 java.util.concurrent.Future;

/**
 * Transforms a value, possibly asynchronously. For an example usage and more
 * information, see {@link Futures#transform(ListenableFuture, AsyncFunction)}.
 *
 * @author Chris Povirk
 * @since 11.0
 */
public interface AsyncFunction {
  /**
   * Returns an output {@code Future} to use in place of the given {@code
   * input}. The output {@code Future} need not be {@linkplain Future#isDone
   * done}, making {@code AsyncFunction} suitable for asynchronous derivations.
   *
   * Throwing an exception from this method is equivalent to returning a
   * failing {@code Future}.
   */
  ListenableFuture apply(I input) throws Exception;
}