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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.storm.utils</a></div>
<h1 title="Class LruMap" class="title">Class LruMap&lt;A,<wbr>B&gt;</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.html" title="class or interface in java.util" class="external-link">java.util.AbstractMap</a>&lt;K,<wbr>V&gt;
<div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html" title="class or interface in java.util" class="external-link">java.util.HashMap</a>&lt;K,<wbr>V&gt;
<div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html" title="class or interface in java.util" class="external-link">java.util.LinkedHashMap</a>&lt;A,<wbr>B&gt;
<div class="inheritance">org.apache.storm.utils.LruMap&lt;A,<wbr>B&gt;</div>
</div>
</div>
</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/Serializable.html" title="class or interface in java.io" class="external-link">Serializable</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Cloneable.html" title="class or interface in java.lang" class="external-link">Cloneable</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;A,<wbr>B&gt;</code></dd>
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<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">LruMap&lt;A,<wbr>B&gt;</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html" title="class or interface in java.util" class="external-link">LinkedHashMap</a>&lt;A,<wbr>B&gt;</span></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="../../../../serialized-form.html#org.apache.storm.utils.LruMap">Serialized Form</a></li>
</ul>
</dd>
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</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<li>
<section class="nested-class-summary" id="nested-class-summary">
<h2>Nested Class Summary</h2>
<div class="caption"><span>Nested Classes</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Class</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>static interface&nbsp;</code></div>
<div class="col-second even-row-color"><code><a href="LruMap.CacheEvictionCallback.html" class="type-name-link" title="interface in org.apache.storm.utils">LruMap.CacheEvictionCallback</a>&lt;<a href="LruMap.CacheEvictionCallback.html" title="type parameter in LruMap.CacheEvictionCallback">K</a>,<wbr><a href="LruMap.CacheEvictionCallback.html" title="type parameter in LruMap.CacheEvictionCallback">V</a>&gt;</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
<div class="inherited-list">
<h2 id="nested-classes-inherited-from-class-java.util.AbstractMap">Nested classes/interfaces inherited from class&nbsp;java.util.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.html" title="class or interface in java.util" class="external-link">AbstractMap</a></h2>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.SimpleEntry.html" title="class or interface in java.util" class="external-link">AbstractMap.SimpleEntry</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.SimpleEntry.html" title="class or interface in java.util" class="external-link">K</a> extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.SimpleEntry.html" title="class or interface in java.util" class="external-link">V</a> extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.SimpleImmutableEntry.html" title="class or interface in java.util" class="external-link">AbstractMap.SimpleImmutableEntry</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.SimpleImmutableEntry.html" title="class or interface in java.util" class="external-link">K</a> extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.SimpleImmutableEntry.html" title="class or interface in java.util" class="external-link">V</a> extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;</code></div>
</section>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(int)" class="member-name-link">LruMap</a><wbr>(int&nbsp;maxSize)</code></div>
<div class="col-last even-row-color">&nbsp;</div>
<div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(int,org.apache.storm.utils.LruMap.CacheEvictionCallback)" class="member-name-link">LruMap</a><wbr>(int&nbsp;maxSize,
<a href="LruMap.CacheEvictionCallback.html" title="interface in org.apache.storm.utils">LruMap.CacheEvictionCallback</a>&nbsp;evictionCallback)</code></div>
<div class="col-last odd-row-color">
<div class="block">Creates an LRU map that will call back before data is removed from the map.</div>
</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#removeEldestEntry(java.util.Map.Entry)" class="member-name-link">removeEldestEntry</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.Entry.html" title="class or interface in java.util" class="external-link">Map.Entry</a>&lt;<a href="LruMap.html" title="type parameter in LruMap">A</a>,<wbr><a href="LruMap.html" title="type parameter in LruMap">B</a>&gt;&nbsp;eldest)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">&nbsp;</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.util.LinkedHashMap">Methods inherited from class&nbsp;java.util.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html" title="class or interface in java.util" class="external-link">LinkedHashMap</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#clear()" title="class or interface in java.util" class="external-link">clear</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#containsValue(java.lang.Object)" title="class or interface in java.util" class="external-link">containsValue</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#entrySet()" title="class or interface in java.util" class="external-link">entrySet</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#forEach(java.util.function.BiConsumer)" title="class or interface in java.util" class="external-link">forEach</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#get(java.lang.Object)" title="class or interface in java.util" class="external-link">get</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#getOrDefault(java.lang.Object,V)" title="class or interface in java.util" class="external-link">getOrDefault</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#keySet()" title="class or interface in java.util" class="external-link">keySet</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#replaceAll(java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">replaceAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#values()" title="class or interface in java.util" class="external-link">values</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.util.HashMap">Methods inherited from class&nbsp;java.util.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html" title="class or interface in java.util" class="external-link">HashMap</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#clone()" title="class or interface in java.util" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#compute(K,java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">compute</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#computeIfAbsent(K,java.util.function.Function)" title="class or interface in java.util" class="external-link">computeIfAbsent</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#computeIfPresent(K,java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">computeIfPresent</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#containsKey(java.lang.Object)" title="class or interface in java.util" class="external-link">containsKey</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#isEmpty()" title="class or interface in java.util" class="external-link">isEmpty</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#merge(K,V,java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">merge</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#put(K,V)" title="class or interface in java.util" class="external-link">put</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#putAll(java.util.Map)" title="class or interface in java.util" class="external-link">putAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#putIfAbsent(K,V)" title="class or interface in java.util" class="external-link">putIfAbsent</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#remove(java.lang.Object)" title="class or interface in java.util" class="external-link">remove</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#remove(java.lang.Object,java.lang.Object)" title="class or interface in java.util" class="external-link">remove</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#replace(K,V)" title="class or interface in java.util" class="external-link">replace</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#replace(K,V,V)" title="class or interface in java.util" class="external-link">replace</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/HashMap.html#size()" title="class or interface in java.util" class="external-link">size</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.util.AbstractMap">Methods inherited from class&nbsp;java.util.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.html" title="class or interface in java.util" class="external-link">AbstractMap</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.html#equals(java.lang.Object)" title="class or interface in java.util" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.html#hashCode()" title="class or interface in java.util" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/AbstractMap.html#toString()" title="class or interface in java.util" class="external-link">toString</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.util.Map">Methods inherited from interface&nbsp;java.util.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#compute(K,java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">compute</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#computeIfAbsent(K,java.util.function.Function)" title="class or interface in java.util" class="external-link">computeIfAbsent</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#computeIfPresent(K,java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">computeIfPresent</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#containsKey(java.lang.Object)" title="class or interface in java.util" class="external-link">containsKey</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#equals(java.lang.Object)" title="class or interface in java.util" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#hashCode()" title="class or interface in java.util" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#isEmpty()" title="class or interface in java.util" class="external-link">isEmpty</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#merge(K,V,java.util.function.BiFunction)" title="class or interface in java.util" class="external-link">merge</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#put(K,V)" title="class or interface in java.util" class="external-link">put</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#putAll(java.util.Map)" title="class or interface in java.util" class="external-link">putAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#putIfAbsent(K,V)" title="class or interface in java.util" class="external-link">putIfAbsent</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#remove(java.lang.Object)" title="class or interface in java.util" class="external-link">remove</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#remove(java.lang.Object,java.lang.Object)" title="class or interface in java.util" class="external-link">remove</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#replace(K,V)" title="class or interface in java.util" class="external-link">replace</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#replace(K,V,V)" title="class or interface in java.util" class="external-link">replace</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html#size()" title="class or interface in java.util" class="external-link">size</a></code></div>
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</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;(int)">
<h3>LruMap</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">LruMap</span><wbr><span class="parameters">(int&nbsp;maxSize)</span></div>
</section>
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<section class="detail" id="&lt;init&gt;(int,org.apache.storm.utils.LruMap.CacheEvictionCallback)">
<h3>LruMap</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">LruMap</span><wbr><span class="parameters">(int&nbsp;maxSize,
<a href="LruMap.CacheEvictionCallback.html" title="interface in org.apache.storm.utils">LruMap.CacheEvictionCallback</a>&nbsp;evictionCallback)</span></div>
<div class="block">Creates an LRU map that will call back before data is removed from the map.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>maxSize</code> - max capacity for the map</dd>
<dd><code>evictionCallback</code> - callback to be called before removing data</dd>
</dl>
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<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="removeEldestEntry(java.util.Map.Entry)">
<h3>removeEldestEntry</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">removeEldestEntry</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.Entry.html" title="class or interface in java.util" class="external-link">Map.Entry</a>&lt;<a href="LruMap.html" title="type parameter in LruMap">A</a>,<wbr><a href="LruMap.html" title="type parameter in LruMap">B</a>&gt;&nbsp;eldest)</span></div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html#removeEldestEntry(java.util.Map.Entry)" title="class or interface in java.util" class="external-link">removeEldestEntry</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/LinkedHashMap.html" title="class or interface in java.util" class="external-link">LinkedHashMap</a>&lt;<a href="LruMap.html" title="type parameter in LruMap">A</a>,<wbr><a href="LruMap.html" title="type parameter in LruMap">B</a>&gt;</code></dd>
</dl>
</section>
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</section>
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