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 <div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.hadoop.hbase.io.hfile</a></div>
 <h1 title="Class HFileBlock.PrefetchedHeader" class="title">Class HFileBlock.PrefetchedHeader</h1>
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 <dd><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></dd>
 </dl>
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 <div class="type-signature"><span class="modifiers">private static class </span><span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.html#line-1333">HFileBlock.PrefetchedHeader</a></span>
 <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
 <div class="block">Data-structure to use caching the header of the NEXT block. Only works if next read that comes
  in here is next in sequence in this block. When we read, we read current block and the next
  blocks' header. We do this so we have the length of the next block to read if the hfile index
  is not available (rare, at hfile open only).</div>
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 <div class="col-first even-row-color"><code>(package private) final <a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></div>
 <div class="col-second even-row-color"><code><a href="#buf" class="member-name-link">buf</a></code></div>
 <div class="col-last even-row-color">&nbsp;</div>
 <div class="col-first odd-row-color"><code>(package private) byte[]</code></div>
 <div class="col-second odd-row-color"><code><a href="#header" class="member-name-link">header</a></code></div>
 <div class="col-last odd-row-color">&nbsp;</div>
 <div class="col-first even-row-color"><code>(package private) long</code></div>
 <div class="col-second even-row-color"><code><a href="#offset" class="member-name-link">offset</a></code></div>
 <div class="col-last even-row-color">&nbsp;</div>
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 <div class="col-first even-row-color"><code>private </code></div>
 <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">PrefetchedHeader</a>()</code></div>
 <div class="col-last even-row-color">&nbsp;</div>
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 <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">toString</a>()</code></div>
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 <h3>offset</h3>
 <div class="member-signature"><span class="return-type">long</span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1334">offset</a></span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="header">
 <h3>header</h3>
 <div class="member-signature"><span class="return-type">byte[]</span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1335">header</a></span></div>
 </section>
 </li>
 <li>
 <section class="detail" id="buf">
 <h3>buf</h3>
 <div class="member-signature"><span class="modifiers">final</span>&nbsp;<span class="return-type"><a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1336">buf</a></span></div>
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 <h3>PrefetchedHeader</h3>
 <div class="member-signature"><span class="modifiers">private</span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1333">PrefetchedHeader</a></span>()</div>
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 <h3>toString</h3>
 <div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1338">toString</a></span>()</div>
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	<div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.hadoop.hbase.io.hfile</a></div>
	<h1 title="Class HFileBlock.PrefetchedHeader" class="title">Class HFileBlock.PrefetchedHeader</h1>
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	<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/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">org.apache.hadoop.hbase.io.hfile.HFileBlock.PrefetchedHeader</div>
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	<section class="class-description" id="class-description">
	<dl class="notes">
	<dt>Enclosing class:</dt>
	<dd><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></dd>
	</dl>
	<hr>
	<div class="type-signature"><span class="modifiers">private static class </span><span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.html#line-1333">HFileBlock.PrefetchedHeader</a></span>
	<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
	<div class="block">Data-structure to use caching the header of the NEXT block. Only works if next read that comes
	in here is next in sequence in this block. When we read, we read current block and the next
	blocks' header. We do this so we have the length of the next block to read if the hfile index
	is not available (rare, at hfile open only).</div>
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	<div class="table-header col-first">Modifier and Type</div>
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	<div class="col-first even-row-color"><code>(package private) final <a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></code></div>
	<div class="col-second even-row-color"><code><a href="#buf" class="member-name-link">buf</a></code></div>
	<div class="col-last even-row-color"> </div>
	<div class="col-first odd-row-color"><code>(package private) byte[]</code></div>
	<div class="col-second odd-row-color"><code><a href="#header" class="member-name-link">header</a></code></div>
	<div class="col-last odd-row-color"> </div>
	<div class="col-first even-row-color"><code>(package private) long</code></div>
	<div class="col-second even-row-color"><code><a href="#offset" class="member-name-link">offset</a></code></div>
	<div class="col-last even-row-color"> </div>
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	<div class="col-first even-row-color"><code>private </code></div>
	<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">PrefetchedHeader</a>()</code></div>
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	<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
	<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">toString</a>()</code></div>
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	</div>
	<div class="inherited-list">
	<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/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/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/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/17/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/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/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/17/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/17/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/17/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/17/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>
	</section>
	</li>
	</ul>
	</section>
	<section class="details">
	<ul class="details-list">
	<!-- ============ FIELD DETAIL =========== -->
	<li>
	<section class="field-details" id="field-detail">
	<h2>Field Details</h2>
	<ul class="member-list">
	<li>
	<section class="detail" id="offset">
	<h3>offset</h3>
	<div class="member-signature"><span class="return-type">long</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1334">offset</a></span></div>
	</section>
	</li>
	<li>
	<section class="detail" id="header">
	<h3>header</h3>
	<div class="member-signature"><span class="return-type">byte[]</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1335">header</a></span></div>
	</section>
	</li>
	<li>
	<section class="detail" id="buf">
	<h3>buf</h3>
	<div class="member-signature"><span class="modifiers">final</span> <span class="return-type"><a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1336">buf</a></span></div>
	</section>
	</li>
	</ul>
	</section>
	</li>
	<!-- ========= CONSTRUCTOR DETAIL ======== -->
	<li>
	<section class="constructor-details" id="constructor-detail">
	<h2>Constructor Details</h2>
	<ul class="member-list">
	<li>
	<section class="detail" id="<init>()">
	<h3>PrefetchedHeader</h3>
	<div class="member-signature"><span class="modifiers">private</span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1333">PrefetchedHeader</a></span>()</div>
	</section>
	</li>
	</ul>
	</section>
	</li>
	<!-- ============ METHOD DETAIL ========== -->
	<li>
	<section class="method-details" id="method-detail">
	<h2>Method Details</h2>
	<ul class="member-list">
	<li>
	<section class="detail" id="toString()">
	<h3>toString</h3>
	<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/HFileBlock.PrefetchedHeader.html#line-1338">toString</a></span>()</div>
	<dl class="notes">
	<dt>Overrides:</dt>
	<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a></code> in class <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></code></dd>
	</dl>
	</section>
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