http://hc.apache.org/httpcomponents-core-ga: Apache HttpComponents Core (non-blocking I/O) (The Apache Software Foundation)
  • Julius Davies
  • Andrea Selva
  • Steffen Pingel
  • Quintin Beukes
  • Marc Beyerle
  • James Abley
  • Michajlo Matijkiw 
/*
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
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 * under the License.
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 *
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package org.apache.http.nio;

import java.io.IOException;


Connection input/output control interface. It can be used to control interest
in I/O event notifications for non-blocking HTTP connections.


Implementations of this interface are expected to be threading safe.
Therefore it can be used to request / suspend I/O event notifications from
any thread of execution.

Since:4.0
/**
 * Connection input/output control interface. It can be used to control interest
 * in I/O event notifications for non-blocking HTTP connections.
 * <p>
 * Implementations of this interface are expected to be threading safe.
 * Therefore it can be used to request / suspend I/O event notifications from
 * any thread of execution.
 *
 * @since 4.0
 */
public interface IOControl {

    
Requests event notifications to be triggered when the underlying
channel is ready for input operations.

/**
     * Requests event notifications to be triggered when the underlying
     * channel is ready for input operations.
     */
    void requestInput();

    
Suspends event notifications about the underlying channel being
ready for input operations.

/**
     * Suspends event notifications about the underlying channel being
     * ready for input operations.
     */
    void suspendInput();

    
Requests event notifications to be triggered when the underlying
channel is ready for output operations.

/**
     * Requests event notifications to be triggered when the underlying
     * channel is ready for output operations.
     */
    void requestOutput();

    
Suspends event notifications about the underlying channel being
ready for output operations.

/**
     * Suspends event notifications about the underlying channel being
     * ready for output operations.
     */
    void suspendOutput();

    
Shuts down the underlying channel.

Throws:
  • IOException – in an error occurs
/**
     * Shuts down the underlying channel.
     *
     * @throws IOException in an error occurs
     */
    void shutdown() throws IOException;

}