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<h2 title="Uses of Interface org.apache.commons.lang3.concurrent.ConcurrentInitializer" class="title">Uses of Interface<br>org.apache.commons.lang3.concurrent.ConcurrentInitializer</h2>
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<div class="classUseContainer">
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<table class="useSummary" summary="Use table, listing packages, and an explanation">
<caption><span>Packages that use <a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a></span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<th class="colFirst" scope="row"><a href="#org.apache.commons.lang3.concurrent">org.apache.commons.lang3.concurrent</a></th>
<td class="colLast">
<div class="block">Provides support classes for multi-threaded programming.</div>
</td>
</tr>
</tbody>
</table>
</li>
<li class="blockList">
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<li class="blockList"><a name="org.apache.commons.lang3.concurrent">
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<h3>Uses of <a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a> in <a href="../../../../../../org/apache/commons/lang3/concurrent/package-summary.html">org.apache.commons.lang3.concurrent</a></h3>
<table class="useSummary" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../../org/apache/commons/lang3/concurrent/package-summary.html">org.apache.commons.lang3.concurrent</a> that implement <a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a></span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/AtomicInitializer.html" title="class in org.apache.commons.lang3.concurrent">AtomicInitializer</a><T></span></code></th>
<td class="colLast">
<div class="block">
A specialized implementation of the <code>ConcurrentInitializer</code> interface
based on an <a href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/atomic/AtomicReference.html?is-external=true" title="class or interface in java.util.concurrent.atomic" class="externalLink"><code>AtomicReference</code></a> variable.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/AtomicSafeInitializer.html" title="class in org.apache.commons.lang3.concurrent">AtomicSafeInitializer</a><T></span></code></th>
<td class="colLast">
<div class="block">
A specialized <code>ConcurrentInitializer</code> implementation which is similar
to <a href="../../../../../../org/apache/commons/lang3/concurrent/AtomicInitializer.html" title="class in org.apache.commons.lang3.concurrent"><code>AtomicInitializer</code></a>, but ensures that the <a href="../../../../../../org/apache/commons/lang3/concurrent/AtomicSafeInitializer.html#initialize--"><code>AtomicSafeInitializer.initialize()</code></a>
method is called only once.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/BackgroundInitializer.html" title="class in org.apache.commons.lang3.concurrent">BackgroundInitializer</a><T></span></code></th>
<td class="colLast">
<div class="block">
A class that allows complex initialization operations in a background task.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/CallableBackgroundInitializer.html" title="class in org.apache.commons.lang3.concurrent">CallableBackgroundInitializer</a><T></span></code></th>
<td class="colLast">
<div class="block">
A specialized <a href="../../../../../../org/apache/commons/lang3/concurrent/BackgroundInitializer.html" title="class in org.apache.commons.lang3.concurrent"><code>BackgroundInitializer</code></a> implementation that wraps a
<code>Callable</code> object.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/ConstantInitializer.html" title="class in org.apache.commons.lang3.concurrent">ConstantInitializer</a><T></span></code></th>
<td class="colLast">
<div class="block">
A very simple implementation of the <a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent"><code>ConcurrentInitializer</code></a> interface
which always returns the same object.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/LazyInitializer.html" title="class in org.apache.commons.lang3.concurrent">LazyInitializer</a><T></span></code></th>
<td class="colLast">
<div class="block">
This class provides a generic implementation of the lazy initialization
pattern.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class </code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/MultiBackgroundInitializer.html" title="class in org.apache.commons.lang3.concurrent">MultiBackgroundInitializer</a></span></code></th>
<td class="colLast">
<div class="block">
A specialized <a href="../../../../../../org/apache/commons/lang3/concurrent/BackgroundInitializer.html" title="class in org.apache.commons.lang3.concurrent"><code>BackgroundInitializer</code></a> implementation that can deal with
multiple background initialization tasks.</div>
</td>
</tr>
</tbody>
</table>
<table class="useSummary" summary="Use table, listing methods, and an explanation">
<caption><span>Methods in <a href="../../../../../../org/apache/commons/lang3/concurrent/package-summary.html">org.apache.commons.lang3.concurrent</a> with parameters of type <a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a></span><span class="tabEnd"> </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>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>static <K,V> V</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">ConcurrentUtils.</span><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentUtils.html#createIfAbsent-java.util.concurrent.ConcurrentMap-K-org.apache.commons.lang3.concurrent.ConcurrentInitializer-">createIfAbsent</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent" class="externalLink">ConcurrentMap</a><K,V> map,
K key,
<a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a><V> init)</code></th>
<td class="colLast">
<div class="block">Checks if a concurrent map contains a key and creates a corresponding
value if not.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <K,V> V</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">ConcurrentUtils.</span><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentUtils.html#createIfAbsentUnchecked-java.util.concurrent.ConcurrentMap-K-org.apache.commons.lang3.concurrent.ConcurrentInitializer-">createIfAbsentUnchecked</a></span>​(<a href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentMap.html?is-external=true" title="class or interface in java.util.concurrent" class="externalLink">ConcurrentMap</a><K,V> map,
K key,
<a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a><V> init)</code></th>
<td class="colLast">
<div class="block">Checks if a concurrent map contains a key and creates a corresponding
value if not, suppressing checked exceptions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <T> T</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">ConcurrentUtils.</span><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentUtils.html#initialize-org.apache.commons.lang3.concurrent.ConcurrentInitializer-">initialize</a></span>​(<a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a><T> initializer)</code></th>
<td class="colLast">
<div class="block">Invokes the specified <code>ConcurrentInitializer</code> and returns the
object produced by the initializer.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <T> T</code></td>
<th class="colSecond" scope="row"><span class="typeNameLabel">ConcurrentUtils.</span><code><span class="memberNameLink"><a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentUtils.html#initializeUnchecked-org.apache.commons.lang3.concurrent.ConcurrentInitializer-">initializeUnchecked</a></span>​(<a href="../../../../../../org/apache/commons/lang3/concurrent/ConcurrentInitializer.html" title="interface in org.apache.commons.lang3.concurrent">ConcurrentInitializer</a><T> initializer)</code></th>
<td class="colLast">
<div class="block">Invokes the specified <code>ConcurrentInitializer</code> and transforms
occurring exceptions to runtime exceptions.</div>
</td>
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