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annotate src/org/eclipse/jetty/io/Connection.java @ 889:5731a7707466

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 06 Oct 2016 23:24:30 -0600
parents 3428c60d7cfc
children 7b94f5b33c64
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.io;
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20
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21 import java.io.IOException;
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22
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23 /* ------------------------------------------------------------ */
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24 /** Abstract Connection used by Jetty Connectors.
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25 * <p>
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26 * Jetty will call the handle method of a connection when there is work
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27 * to be done on the connection. For blocking connections, this is soon
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28 * as the connection is open and handle will keep being called until the
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29 * connection is closed. For non-blocking connections, handle will only
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30 * be called if there are bytes to be read or the connection becomes writable
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31 * after being write blocked.
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32 *
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33 * @see org.eclipse.jetty.io.nio.SelectorManager
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34 */
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35 public interface Connection
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36 {
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37 /* ------------------------------------------------------------ */
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38 /**
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39 * Handle the connection.
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40 * @return The Connection to use for the next handling of the connection.
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41 * This allows protocol upgrades and support for CONNECT.
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42 * @throws IOException if the handling of I/O operations fail
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43 */
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44 Connection handle() throws IOException;
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45
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46 /**
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47 * @return the timestamp at which the connection was created
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48 */
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49 long getTimeStamp();
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50
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51 /**
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52 * @return whether this connection is idle, that is not parsing and not generating
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53 * @see #onIdleExpired(long)
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54 */
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55 boolean isIdle();
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56
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57 /**
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58 * <p>The semantic of this method is to return true to indicate interest in further reads,
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59 * or false otherwise, but it is misnamed and should be really called <code>isReadInterested()</code>.</p>
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60 *
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61 * @return true to indicate interest in further reads, false otherwise
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62 */
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63 // TODO: rename to isReadInterested() in the next release
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64 boolean isSuspended();
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65
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66 /**
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67 * Called after the connection is closed
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68 */
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69 void onClose();
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70
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71 /**
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72 * Called when the connection idle timeout expires
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73 * @param idleForMs how long the connection has been idle
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74 * @see #isIdle()
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75 */
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76 void onIdleExpired(long idleForMs);
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77 }