org.apache.http.concurrent.FutureCallback Maven / Gradle / Ivy

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 * ====================================================================
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 * distributed with this work for additional information
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 * to you 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,
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 * "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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
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 * .
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package org.apache.http.concurrent;

/**
 * A callback interface that gets invoked upon completion of
 * a {@link java.util.concurrent.Future}.
 *
 * @param  the future result type returned by this callback.
 * @since 4.2
 */
public interface FutureCallback {

    void completed(T result);

    void failed(Exception ex);

    void cancelled();

}