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<div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.eclipse.jetty.client</a></div>
<h2 title="Class AbstractConnectionPool" class="title">Class AbstractConnectionPool</h2>
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<li>java.lang.Object</li>
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<dt>All Implemented Interfaces:</dt>
<dd><code>java.io.Closeable</code>, <code>java.lang.AutoCloseable</code>, <code><a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></code>, <code><a href="../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></code></dd>
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<dt>Direct Known Subclasses:</dt>
<dd><code><a href="DuplexConnectionPool.html" title="class in org.eclipse.jetty.client">DuplexConnectionPool</a></code>, <code><a href="MultiplexConnectionPool.html" title="class in org.eclipse.jetty.client">MultiplexConnectionPool</a></code>, <code><a href="RoundRobinConnectionPool.html" title="class in org.eclipse.jetty.client">RoundRobinConnectionPool</a></code></dd>
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<pre><a href="../util/annotation/ManagedObject.html" title="annotation in org.eclipse.jetty.util.annotation">@ManagedObject</a>
public abstract class <span class="typeNameLabel">AbstractConnectionPool</span>
extends java.lang.Object
implements <a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a>, <a href="../util/component/Dumpable.html" title="interface in org.eclipse.jetty.util.component">Dumpable</a></pre>
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<h3>Nested classes/interfaces inherited from interface&nbsp;org.eclipse.jetty.client.<a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></h3>
<code><a href="ConnectionPool.Factory.html" title="interface in org.eclipse.jetty.client">ConnectionPool.Factory</a>, <a href="ConnectionPool.Multiplexable.html" title="interface in org.eclipse.jetty.client">ConnectionPool.Multiplexable</a></code></li>
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<code><a href="../util/component/Dumpable.html#KEY">KEY</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colSecond" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected </code></td>
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.eclipse.jetty.client.api.Destination,int,org.eclipse.jetty.util.Callback)">AbstractConnectionPool</a></span>&#8203;(<a href="api/Destination.html" title="interface in org.eclipse.jetty.client.api">Destination</a>&nbsp;destination,
int&nbsp;maxConnections,
<a href="../util/Callback.html" title="interface in org.eclipse.jetty.util">Callback</a>&nbsp;requester)</code></th>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<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><a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#acquire()">acquire</a></span>()</code></th>
<td class="colLast">
<div class="block">Returns an idle connection, if available, or schedules the opening
of a new connection and returns <code>null</code>.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#acquired(org.eclipse.jetty.client.api.Connection)">acquired</a></span>&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>protected abstract <a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#activate()">activate</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected <a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#active(org.eclipse.jetty.client.api.Connection)">active</a></span>&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th>
<td class="colLast">
<div class="block">Closes this ConnectionPool.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close(java.util.Collection)">close</a></span>&#8203;(java.util.Collection&lt;<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&gt;&nbsp;connections)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i6" 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="i7" class="rowColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getConnectionCount()">getConnectionCount</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMaxConnectionCount()">getMaxConnectionCount</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPendingConnectionCount()">getPendingConnectionCount</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPendingCount()">getPendingCount</a></span>()</code></th>
<td class="colLast">
<div class="block"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">use <a href="#getPendingConnectionCount()"><code>getPendingConnectionCount()</code></a> instead</div>
</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#idle(org.eclipse.jetty.client.api.Connection,boolean)">idle</a></span>&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection,
boolean&nbsp;close)</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="#isClosed()">isClosed</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="#isEmpty()">isEmpty</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>protected abstract void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#onCreated(org.eclipse.jetty.client.api.Connection)">onCreated</a></span>&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#proceed()">proceed</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#released(org.eclipse.jetty.client.api.Connection)">released</a></span>&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#removed(org.eclipse.jetty.client.api.Connection)">removed</a></span>&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#tryCreate(int)">tryCreate</a></span>&#8203;(int&nbsp;maxPending)</code></th>
<td class="colLast">&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h3>Methods inherited from interface&nbsp;org.eclipse.jetty.client.<a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></h3>
<code><a href="ConnectionPool.html#isActive(org.eclipse.jetty.client.api.Connection)">isActive</a>, <a href="ConnectionPool.html#release(org.eclipse.jetty.client.api.Connection)">release</a>, <a href="ConnectionPool.html#remove(org.eclipse.jetty.client.api.Connection)">remove</a></code></li>
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<h3>Methods 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.html#dump(java.lang.Appendable,java.lang.String)">dump</a>, <a href="../util/component/Dumpable.html#dumpSelf()">dumpSelf</a></code></li>
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<h4>AbstractConnectionPool</h4>
<pre>protected&nbsp;AbstractConnectionPool&#8203;(<a href="api/Destination.html" title="interface in org.eclipse.jetty.client.api">Destination</a>&nbsp;destination,
int&nbsp;maxConnections,
<a href="../util/Callback.html" title="interface in org.eclipse.jetty.util">Callback</a>&nbsp;requester)</pre>
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<h4>getMaxConnectionCount</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#value()">value</a>="The max number of connections",
<a href="../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
public&nbsp;int&nbsp;getMaxConnectionCount()</pre>
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<h4>getConnectionCount</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#value()">value</a>="The number of connections",
<a href="../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
public&nbsp;int&nbsp;getConnectionCount()</pre>
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<h4>getPendingCount</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#value()">value</a>="The number of pending connections",
<a href="../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
@Deprecated
public&nbsp;int&nbsp;getPendingCount()</pre>
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">use <a href="#getPendingConnectionCount()"><code>getPendingConnectionCount()</code></a> instead</div>
</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the number of pending connections</dd>
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<a id="getPendingConnectionCount()">
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<h4>getPendingConnectionCount</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#value()">value</a>="The number of pending connections",
<a href="../util/annotation/ManagedAttribute.html#readonly()">readonly</a>=true)
public&nbsp;int&nbsp;getPendingConnectionCount()</pre>
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<h4>isEmpty</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isEmpty()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="ConnectionPool.html#isEmpty()">isEmpty</a></code>&nbsp;in interface&nbsp;<code><a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether this ConnectionPool has no open connections</dd>
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<a id="isClosed()">
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<h4>isClosed</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isClosed()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="ConnectionPool.html#isClosed()">isClosed</a></code>&nbsp;in interface&nbsp;<code><a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether this ConnectionPool has been closed</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="ConnectionPool.html#close()"><code>ConnectionPool.close()</code></a></dd>
</dl>
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<a id="acquire()">
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<h4>acquire</h4>
<pre class="methodSignature">public&nbsp;<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;acquire()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="ConnectionPool.html#acquire()">ConnectionPool</a></code></span></div>
<div class="block"><p>Returns an idle connection, if available, or schedules the opening
of a new connection and returns <code>null</code>.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="ConnectionPool.html#acquire()">acquire</a></code>&nbsp;in interface&nbsp;<code><a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an available connection, or null</dd>
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<pre class="methodSignature">protected&nbsp;void&nbsp;tryCreate&#8203;(int&nbsp;maxPending)</pre>
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<pre class="methodSignature">protected abstract&nbsp;void&nbsp;onCreated&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</pre>
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<pre class="methodSignature">protected&nbsp;void&nbsp;proceed()</pre>
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<pre class="methodSignature">protected abstract&nbsp;<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;activate()</pre>
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<pre class="methodSignature">protected&nbsp;<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;active&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</pre>
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<pre class="methodSignature">protected&nbsp;void&nbsp;acquired&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</pre>
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<pre class="methodSignature">protected&nbsp;boolean&nbsp;idle&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection,
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<pre class="methodSignature">protected&nbsp;void&nbsp;released&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</pre>
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<pre class="methodSignature">protected&nbsp;void&nbsp;removed&#8203;(<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&nbsp;connection)</pre>
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<pre class="methodSignature">public&nbsp;void&nbsp;close()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="ConnectionPool.html#close()">ConnectionPool</a></code></span></div>
<div class="block">Closes this ConnectionPool.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>close</code>&nbsp;in interface&nbsp;<code>java.lang.AutoCloseable</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>close</code>&nbsp;in interface&nbsp;<code>java.io.Closeable</code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="ConnectionPool.html#close()">close</a></code>&nbsp;in interface&nbsp;<code><a href="ConnectionPool.html" title="interface in org.eclipse.jetty.client">ConnectionPool</a></code></dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="ConnectionPool.html#isClosed()"><code>ConnectionPool.isClosed()</code></a></dd>
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<pre class="methodSignature">protected&nbsp;void&nbsp;close&#8203;(java.util.Collection&lt;<a href="api/Connection.html" title="interface in org.eclipse.jetty.client.api">Connection</a>&gt;&nbsp;connections)</pre>
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<pre class="methodSignature">public&nbsp;java.lang.String&nbsp;dump()</pre>
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<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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