Asynchronous callback

IoCallback2.java

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 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * 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,
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package io.examples;

import java.io.Closeable;

/**
 * @author <a href="mailto:[email protected]">David M. Lloyd</a>
 */
public interface IoCallback2<T> {
    void ready(T param);

    IoCallback2<Closeable> CLOSE = IoUtils::safeClose;
}