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Edit File: SetQueue.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- NewPage --> <html lang="en"> <head> <!-- Generated by javadoc (version 1.7.0_91) on Thu Jan 14 10:04:52 GMT 2016 --> <title>SetQueue</title> <meta name="date" content="2016-01-14"> <link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style"> </head> <body> <script type="text/javascript"><!-- if (location.href.indexOf('is-external=true') == -1) { parent.document.title="SetQueue"; } //--> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript> <!-- ========= START OF TOP NAVBAR ======= --> <div class="topNav"><a name="navbar_top"> <!-- --> </a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../deprecated-list.html">Deprecated</a></li> <li><a href="../../../../index-all.html">Index</a></li> <li><a href="../../../../help-doc.html">Help</a></li> </ul> </div> <div class="subNav"> <ul class="navList"> <li><a href="../../../../com/rabbitmq/client/impl/PlainMechanism.html" title="class in com.rabbitmq.client.impl"><span class="strong">Prev Class</span></a></li> <li><a href="../../../../com/rabbitmq/client/impl/ShutdownNotifierComponent.html" title="class in com.rabbitmq.client.impl"><span class="strong">Next Class</span></a></li> </ul> <ul class="navList"> <li><a href="../../../../index.html?com/rabbitmq/client/impl/SetQueue.html" target="_top">Frames</a></li> <li><a href="SetQueue.html" target="_top">No Frames</a></li> </ul> <ul class="navList" id="allclasses_navbar_top"> <li><a href="../../../../allclasses-noframe.html">All Classes</a></li> </ul> <div> <script type="text/javascript"><!-- allClassesLink = document.getElementById("allclasses_navbar_top"); if(window==top) { allClassesLink.style.display = "block"; } else { allClassesLink.style.display = "none"; } //--> </script> </div> <div> <ul class="subNavList"> <li>Summary: </li> <li>Nested | </li> <li>Field | </li> <li><a href="#constructor_summary">Constr</a> | </li> <li><a href="#method_summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li>Field | </li> <li><a href="#constructor_detail">Constr</a> | </li> <li><a href="#method_detail">Method</a></li> </ul> </div> <a name="skip-navbar_top"> <!-- --> </a></div> <!-- ========= END OF TOP NAVBAR ========= --> <!-- ======== START OF CLASS DATA ======== --> <div class="header"> <div class="subTitle">com.rabbitmq.client.impl</div> <h2 title="Class SetQueue" class="title">Class SetQueue<T></h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li>com.rabbitmq.client.impl.SetQueue<T></li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>T</code> - type of elements in the queue</dd></dl> <hr> <br> <pre>public class <span class="strong">SetQueue<T></span> extends java.lang.Object</pre> <div class="block">A generic queue-like implementation (supporting operations <code>addIfNotPresent</code>, <code>poll</code>, <code>contains</code>, and <code>isEmpty</code>) which restricts a queue element to appear at most once. If the element is already present <a href="../../../../com/rabbitmq/client/impl/SetQueue.html#addIfNotPresent(T)"><code>addIfNotPresent(T)</code></a> returns <code><b>false</b></code>. <p/> Elements must not be <code><b>null</b></code>. <p/><b>Concurrent Semantics</b><br/> This implementation is <i>not</i> thread-safe.</div> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList"> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <ul class="blockList"> <li class="blockList"><a name="constructor_summary"> <!-- --> </a> <h3>Constructor Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> <caption><span>Constructors</span><span class="tabEnd"> </span></caption> <tr> <th class="colOne" scope="col">Constructor and Description</th> </tr> <tr class="altColor"> <td class="colOne"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#SetQueue()">SetQueue</a></strong>()</code> </td> </tr> </table> </li> </ul> <!-- ========== METHOD SUMMARY =========== --> <ul class="blockList"> <li class="blockList"><a name="method_summary"> <!-- --> </a> <h3>Method Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> <caption><span>Methods</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Method and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#addIfNotPresent(T)">addIfNotPresent</a></strong>(<a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> item)</code> <div class="block">Add an element to the back of the queue and return <code><b>true</b></code>, or else return <code><b>false</b></code>.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#clear()">clear</a></strong>()</code> <div class="block">Remove all items from the queue.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#contains(T)">contains</a></strong>(<a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> item)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#isEmpty()">isEmpty</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a></code></td> <td class="colLast"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#poll()">poll</a></strong>()</code> <div class="block">Remove the head of the queue and return it.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../com/rabbitmq/client/impl/SetQueue.html#remove(T)">remove</a></strong>(<a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> item)</code> <div class="block">Remove item from queue, if present.</div> </td> </tr> </table> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> <!-- --> </a> <h3>Methods inherited from class java.lang.Object</h3> <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> </ul> </li> </ul> </li> </ul> </div> <div class="details"> <ul class="blockList"> <li class="blockList"> <!-- ========= CONSTRUCTOR DETAIL ======== --> <ul class="blockList"> <li class="blockList"><a name="constructor_detail"> <!-- --> </a> <h3>Constructor Detail</h3> <a name="SetQueue()"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>SetQueue</h4> <pre>public SetQueue()</pre> </li> </ul> </li> </ul> <!-- ============ METHOD DETAIL ========== --> <ul class="blockList"> <li class="blockList"><a name="method_detail"> <!-- --> </a> <h3>Method Detail</h3> <a name="addIfNotPresent(java.lang.Object)"> <!-- --> </a><a name="addIfNotPresent(T)"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>addIfNotPresent</h4> <pre>public boolean addIfNotPresent(<a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> item)</pre> <div class="block">Add an element to the back of the queue and return <code><b>true</b></code>, or else return <code><b>false</b></code>.</div> <dl><dt><span class="strong">Parameters:</span></dt><dd><code>item</code> - to add</dd> <dt><span class="strong">Returns:</span></dt><dd><b><code>true</code></b> if the element was added, <b><code>false</code></b> if it is already present.</dd></dl> </li> </ul> <a name="poll()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>poll</h4> <pre>public <a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> poll()</pre> <div class="block">Remove the head of the queue and return it.</div> <dl><dt><span class="strong">Returns:</span></dt><dd>head element of the queue, or <b><code>null</code></b> if the queue is empty.</dd></dl> </li> </ul> <a name="contains(java.lang.Object)"> <!-- --> </a><a name="contains(T)"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>contains</h4> <pre>public boolean contains(<a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> item)</pre> <dl><dt><span class="strong">Parameters:</span></dt><dd><code>item</code> - to look for in queue</dd> <dt><span class="strong">Returns:</span></dt><dd><code><b>true</b></code> if and only if <b>item</b> is in the queue.</dd></dl> </li> </ul> <a name="isEmpty()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>isEmpty</h4> <pre>public boolean isEmpty()</pre> <dl><dt><span class="strong">Returns:</span></dt><dd><code><b>true</b></code> if and only if the queue is empty.</dd></dl> </li> </ul> <a name="remove(java.lang.Object)"> <!-- --> </a><a name="remove(T)"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>remove</h4> <pre>public boolean remove(<a href="../../../../com/rabbitmq/client/impl/SetQueue.html" title="type parameter in SetQueue">T</a> item)</pre> <div class="block">Remove item from queue, if present.</div> <dl><dt><span class="strong">Parameters:</span></dt><dd><code>item</code> - to remove</dd> <dt><span class="strong">Returns:</span></dt><dd><code><b>true</b></code> if and only if item was initially present and was removed.</dd></dl> </li> </ul> <a name="clear()"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>clear</h4> <pre>public void clear()</pre> <div class="block">Remove all items from the queue.</div> </li> </ul> </li> </ul> </li> </ul> </div> </div> <!-- ========= END OF CLASS DATA ========= --> <!-- ======= START OF BOTTOM NAVBAR ====== --> <div class="bottomNav"><a name="navbar_bottom"> <!-- --> </a><a href="#skip-navbar_bottom" title="Skip navigation links"></a><a name="navbar_bottom_firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../deprecated-list.html">Deprecated</a></li> <li><a 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