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| <h2 title="Interface Graceful" class="title">Interface Graceful</h2> |
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| <pre>public interface <span class="typeNameLabel">Graceful</span></pre> |
| <div class="block"><p>Jetty components that wish to be part of a Graceful shutdown implement this interface so that |
| the <a href="#shutdown()"><code>shutdown()</code></a> method will be called to initiate a shutdown. Shutdown operations |
| can fall into the following categories:</p> |
| <ul> |
| <li>Preventing new load from being accepted (eg connectors stop accepting connections)</li> |
| <li>Preventing existing load expanding (eg stopping existing connections accepting new requests)</li> |
| <li>Waiting for existing load to complete (eg waiting for active request count to reduce to 0)</li> |
| <li>Performing cleanup operations that may take time (eg closing an SSL connection)</li> |
| </ul> |
| <p>The <code>Future</code> returned by the the shutdown call will be completed to indicate the shutdown operation is completed. |
| Some shutdown operations may be instantaneous and always return a completed future. |
| </p><p> |
| Graceful shutdown is typically orchestrated by the doStop methods of Server or ContextHandler (for a full or partial |
| shutdown respectively). |
| </p></div> |
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| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="Graceful.Shutdown.html" title="class in org.eclipse.jetty.util.component">Graceful.Shutdown</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">A utility Graceful that uses a <a href="../FutureCallback.html" title="class in org.eclipse.jetty.util"><code>FutureCallback</code></a> to indicate if shutdown is completed.</div> |
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| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isShutdown()">isShutdown</a></span>()</code></th> |
| <td class="colLast"> </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.util.concurrent.Future<java.lang.Void></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#shutdown()">shutdown</a></span>()</code></th> |
| <td class="colLast"> </td> |
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| <h4>shutdown</h4> |
| <pre class="methodSignature">java.util.concurrent.Future<java.lang.Void> shutdown()</pre> |
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