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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.eclipse.jetty.websocket.core.internal</a></div>
<h2 title="Class ExtensionStack" class="title">Class ExtensionStack</h2>
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<li>java.lang.Object</li>
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<li>org.eclipse.jetty.websocket.core.internal.ExtensionStack</li>
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<pre><a href="../../../util/annotation/ManagedObject.html" title="annotation in org.eclipse.jetty.util.annotation">@ManagedObject</a>("Extension Stack")
public class <span class="typeNameLabel">ExtensionStack</span>
extends java.lang.Object
implements <a href="../IncomingFrames.html" title="interface in org.eclipse.jetty.websocket.core">IncomingFrames</a>, <a href="../OutgoingFrames.html" title="interface in org.eclipse.jetty.websocket.core">OutgoingFrames</a>, <a href="../../../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></pre>
<div class="block">Represents the stack of Extensions.</div>
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<h3>Nested classes/interfaces inherited from interface&nbsp;org.eclipse.jetty.util.component.<a href="../../../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></h3>
<code><a href="../../../util/component/Dumpable.DumpableContainer.html" title="interface in org.eclipse.jetty.util.component">Dumpable.DumpableContainer</a></code></li>
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<code><a href="../../../util/component/Dumpable.html#KEY">KEY</a></code></li>
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<th class="colFirst" scope="col">Constructor</th>
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<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.eclipse.jetty.websocket.core.WebSocketComponents,org.eclipse.jetty.websocket.core.Behavior)">ExtensionStack</a></span>&#8203;(<a href="../WebSocketComponents.html" title="class in org.eclipse.jetty.websocket.core">WebSocketComponents</a>&nbsp;components,
<a href="../Behavior.html" title="enum in org.eclipse.jetty.websocket.core">Behavior</a>&nbsp;behavior)</code></th>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dump()">dump</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dump(java.lang.Appendable,java.lang.String)">dump</a></span>&#8203;(java.lang.Appendable&nbsp;out,
java.lang.String&nbsp;indent)</code></th>
<td class="colLast">
<div class="block">Dump this object (and children) into an Appendable using the provided indent after any new lines.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#dumpSelf()">dumpSelf</a></span>()</code></th>
<td class="colLast">
<div class="block">The description of this/self found in the dump.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getExtensions()">getExtensions</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>java.util.List&lt;<a href="../ExtensionConfig.html" title="class in org.eclipse.jetty.websocket.core">ExtensionConfig</a>&gt;</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNegotiatedExtensions()">getNegotiatedExtensions</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the list of negotiated extensions, each entry being a full "name; params" extension configuration</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../IncomingFrames.html" title="interface in org.eclipse.jetty.websocket.core">IncomingFrames</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNextIncoming()">getNextIncoming</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../OutgoingFrames.html" title="interface in org.eclipse.jetty.websocket.core">OutgoingFrames</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNextOutgoing()">getNextOutgoing</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRsv1User()">getRsv1User</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRsv2User()">getRsv2User</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRsv3User()">getRsv3User</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasNegotiatedExtensions()">hasNegotiatedExtensions</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#initialize(org.eclipse.jetty.websocket.core.IncomingFrames,org.eclipse.jetty.websocket.core.OutgoingFrames,org.eclipse.jetty.websocket.core.internal.WebSocketCoreSession)">initialize</a></span>&#8203;(<a href="../IncomingFrames.html" title="interface in org.eclipse.jetty.websocket.core">IncomingFrames</a>&nbsp;incoming,
<a href="../OutgoingFrames.html" title="interface in org.eclipse.jetty.websocket.core">OutgoingFrames</a>&nbsp;outgoing,
<a href="WebSocketCoreSession.html" title="class in org.eclipse.jetty.websocket.core.internal">WebSocketCoreSession</a>&nbsp;coreSession)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isRsv1Used()">isRsv1Used</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isRsv2Used()">isRsv2Used</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isRsv3Used()">isRsv3Used</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#negotiate(java.util.List,java.util.List)">negotiate</a></span>&#8203;(java.util.List&lt;<a href="../ExtensionConfig.html" title="class in org.eclipse.jetty.websocket.core">ExtensionConfig</a>&gt;&nbsp;offeredConfigs,
java.util.List&lt;<a href="../ExtensionConfig.html" title="class in org.eclipse.jetty.websocket.core">ExtensionConfig</a>&gt;&nbsp;negotiatedConfigs)</code></th>
<td class="colLast">
<div class="block">Perform the extension negotiation.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback)">onFrame</a></span>&#8203;(<a href="../Frame.html" title="class in org.eclipse.jetty.websocket.core">Frame</a>&nbsp;frame,
<a href="../../../util/Callback.html" title="interface in org.eclipse.jetty.util">Callback</a>&nbsp;callback)</code></th>
<td class="colLast">
<div class="block">Process the incoming frame.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sendFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback,boolean)">sendFrame</a></span>&#8203;(<a href="../Frame.html" title="class in org.eclipse.jetty.websocket.core">Frame</a>&nbsp;frame,
<a href="../../../util/Callback.html" title="interface in org.eclipse.jetty.util">Callback</a>&nbsp;callback,
boolean&nbsp;batch)</code></th>
<td class="colLast">
<div class="block">A frame, and optional callback, intended for the network layer.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<h3>Constructor Detail</h3>
<a id="&lt;init&gt;(org.eclipse.jetty.websocket.core.WebSocketComponents,org.eclipse.jetty.websocket.core.Behavior)">
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<h4>ExtensionStack</h4>
<pre>public&nbsp;ExtensionStack&#8203;(<a href="../WebSocketComponents.html" title="class in org.eclipse.jetty.websocket.core">WebSocketComponents</a>&nbsp;components,
<a href="../Behavior.html" title="enum in org.eclipse.jetty.websocket.core">Behavior</a>&nbsp;behavior)</pre>
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<h3>Method Detail</h3>
<a id="getExtensions()">
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<h4>getExtensions</h4>
<pre class="methodSignature"><a href="../../../util/annotation/ManagedAttribute.html" title="annotation in org.eclipse.jetty.util.annotation">@ManagedAttribute</a>(<a href="../../../util/annotation/ManagedAttribute.html#name()">name</a>="Extension List",
<a href="../../../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
public&nbsp;java.util.List&lt;<a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a>&gt;&nbsp;getExtensions()</pre>
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<a id="getNegotiatedExtensions()">
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<h4>getNegotiatedExtensions</h4>
<pre class="methodSignature">public&nbsp;java.util.List&lt;<a href="../ExtensionConfig.html" title="class in org.eclipse.jetty.websocket.core">ExtensionConfig</a>&gt;&nbsp;getNegotiatedExtensions()</pre>
<div class="block">Get the list of negotiated extensions, each entry being a full "name; params" extension configuration</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of negotiated extensions</dd>
</dl>
</li>
</ul>
<a id="getNextIncoming()">
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<h4>getNextIncoming</h4>
<pre class="methodSignature"><a href="../../../util/annotation/ManagedAttribute.html" title="annotation in org.eclipse.jetty.util.annotation">@ManagedAttribute</a>(<a href="../../../util/annotation/ManagedAttribute.html#name()">name</a>="Next Incoming Frames Handler",
<a href="../../../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
public&nbsp;<a href="../IncomingFrames.html" title="interface in org.eclipse.jetty.websocket.core">IncomingFrames</a>&nbsp;getNextIncoming()</pre>
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<a id="getNextOutgoing()">
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<h4>getNextOutgoing</h4>
<pre class="methodSignature"><a href="../../../util/annotation/ManagedAttribute.html" title="annotation in org.eclipse.jetty.util.annotation">@ManagedAttribute</a>(<a href="../../../util/annotation/ManagedAttribute.html#name()">name</a>="Next Outgoing Frames Handler",
<a href="../../../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
public&nbsp;<a href="../OutgoingFrames.html" title="interface in org.eclipse.jetty.websocket.core">OutgoingFrames</a>&nbsp;getNextOutgoing()</pre>
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<h4>hasNegotiatedExtensions</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;hasNegotiatedExtensions()</pre>
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<a id="onFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback)">
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<h4>onFrame</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;onFrame&#8203;(<a href="../Frame.html" title="class in org.eclipse.jetty.websocket.core">Frame</a>&nbsp;frame,
<a href="../../../util/Callback.html" title="interface in org.eclipse.jetty.util">Callback</a>&nbsp;callback)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../IncomingFrames.html#onFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback)">IncomingFrames</a></code></span></div>
<div class="block">Process the incoming frame.
<p>
Note: if you need to hang onto any information from the frame, be sure
to copy it, as the information contained in the Frame will be released
and/or reused by the implementation.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../IncomingFrames.html#onFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback)">onFrame</a></code>&nbsp;in interface&nbsp;<code><a href="../IncomingFrames.html" title="interface in org.eclipse.jetty.websocket.core">IncomingFrames</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frame</code> - the frame to process</dd>
<dd><code>callback</code> - the read completion</dd>
</dl>
</li>
</ul>
<a id="negotiate(java.util.List,java.util.List)">
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<h4>negotiate</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;negotiate&#8203;(java.util.List&lt;<a href="../ExtensionConfig.html" title="class in org.eclipse.jetty.websocket.core">ExtensionConfig</a>&gt;&nbsp;offeredConfigs,
java.util.List&lt;<a href="../ExtensionConfig.html" title="class in org.eclipse.jetty.websocket.core">ExtensionConfig</a>&gt;&nbsp;negotiatedConfigs)</pre>
<div class="block">Perform the extension negotiation.
<p>
For the list of negotiated extensions, use <a href="#getNegotiatedExtensions()"><code>getNegotiatedExtensions()</code></a></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>offeredConfigs</code> - the configurations being requested by the client</dd>
<dd><code>negotiatedConfigs</code> - the configurations accepted by the server</dd>
</dl>
</li>
</ul>
<a id="sendFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback,boolean)">
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<h4>sendFrame</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;sendFrame&#8203;(<a href="../Frame.html" title="class in org.eclipse.jetty.websocket.core">Frame</a>&nbsp;frame,
<a href="../../../util/Callback.html" title="interface in org.eclipse.jetty.util">Callback</a>&nbsp;callback,
boolean&nbsp;batch)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../OutgoingFrames.html#sendFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback,boolean)">OutgoingFrames</a></code></span></div>
<div class="block">A frame, and optional callback, intended for the network layer.
<p>
Note: the frame can undergo many transformations in the various
layers and extensions present in the implementation.
<p>
If you are implementing a mutation, you are obliged to handle
the incoming WriteCallback appropriately.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../OutgoingFrames.html#sendFrame(org.eclipse.jetty.websocket.core.Frame,org.eclipse.jetty.util.Callback,boolean)">sendFrame</a></code>&nbsp;in interface&nbsp;<code><a href="../OutgoingFrames.html" title="interface in org.eclipse.jetty.websocket.core">OutgoingFrames</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>frame</code> - the frame to eventually write to the network layer.</dd>
<dd><code>callback</code> - the callback to notify when the frame is written.</dd>
<dd><code>batch</code> - the batch mode requested by the sender.</dd>
</dl>
</li>
</ul>
<a id="initialize(org.eclipse.jetty.websocket.core.IncomingFrames,org.eclipse.jetty.websocket.core.OutgoingFrames,org.eclipse.jetty.websocket.core.internal.WebSocketCoreSession)">
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<h4>initialize</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;initialize&#8203;(<a href="../IncomingFrames.html" title="interface in org.eclipse.jetty.websocket.core">IncomingFrames</a>&nbsp;incoming,
<a href="../OutgoingFrames.html" title="interface in org.eclipse.jetty.websocket.core">OutgoingFrames</a>&nbsp;outgoing,
<a href="WebSocketCoreSession.html" title="class in org.eclipse.jetty.websocket.core.internal">WebSocketCoreSession</a>&nbsp;coreSession)</pre>
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<h4>getRsv1User</h4>
<pre class="methodSignature">public&nbsp;<a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a>&nbsp;getRsv1User()</pre>
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<pre class="methodSignature">public&nbsp;<a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a>&nbsp;getRsv2User()</pre>
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<pre class="methodSignature">public&nbsp;<a href="../Extension.html" title="interface in org.eclipse.jetty.websocket.core">Extension</a>&nbsp;getRsv3User()</pre>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;isRsv1Used()</pre>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;isRsv2Used()</pre>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;isRsv3Used()</pre>
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<h4>dump</h4>
<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;dump()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../util/component/Dumpable.html#dump()">dump</a></code>&nbsp;in interface&nbsp;<code><a href="../../../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></code></dd>
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<h4>dump</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;dump&#8203;(java.lang.Appendable&nbsp;out,
java.lang.String&nbsp;indent)
throws java.io.IOException</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../util/component/Dumpable.html#dump(java.lang.Appendable,java.lang.String)">Dumpable</a></code></span></div>
<div class="block">Dump this object (and children) into an Appendable using the provided indent after any new lines.
The indent should not be applied to the first object dumped.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../util/component/Dumpable.html#dump(java.lang.Appendable,java.lang.String)">dump</a></code>&nbsp;in interface&nbsp;<code><a href="../../../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>out</code> - The appendable to dump to</dd>
<dd><code>indent</code> - The indent to apply after any new lines.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.io.IOException</code> - if unable to write to Appendable</dd>
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<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;dumpSelf()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../util/component/Dumpable.html#dumpSelf()">Dumpable</a></code></span></div>
<div class="block">The description of this/self found in the dump.
Allows for alternative representation of Object other then .toString()
where the long form output of toString() is represented in a cleaner way
within the dump infrastructure.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../util/component/Dumpable.html#dumpSelf()">dumpSelf</a></code>&nbsp;in interface&nbsp;<code><a href="../../../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the representation of self</dd>
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<h4>toString</h4>
<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
</dl>
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