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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 ExclusiveMemHFileBlock" class="title">Class ExclusiveMemHFileBlock</h1>
</div>
<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"><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">org.apache.hadoop.hbase.io.hfile.HFileBlock</a>
<div class="inheritance">org.apache.hadoop.hbase.io.hfile.ExclusiveMemHFileBlock</div>
</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../HeapSize.html" title="interface in org.apache.hadoop.hbase.io">HeapSize</a></code>, <code><a href="Cacheable.html" title="interface in org.apache.hadoop.hbase.io.hfile">Cacheable</a></code>, <code><a href="../../nio/HBaseReferenceCounted.html" title="interface in org.apache.hadoop.hbase.nio">HBaseReferenceCounted</a></code>, <code>org.apache.hbase.thirdparty.io.netty.util.ReferenceCounted</code></dd>
</dl>
<hr>
<div class="type-signature"><span class="annotations">@Private
</span><span class="modifiers">public class </span><span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/ExclusiveMemHFileBlock.html#line-36">ExclusiveMemHFileBlock</a></span>
<span class="extends-implements">extends <a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></span></div>
<div class="block">The <a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io"><code>ByteBuffAllocator</code></a> won't allocate pooled heap <a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio"><code>ByteBuff</code></a> now; at the same time,
if allocate an off-heap <a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio"><code>ByteBuff</code></a> from allocator, then it must be a pooled one. That's to
say, an exclusive memory HFileBlock would must be an heap block and a shared memory HFileBlock
would must be an off-heap block.
<p>
The exclusive memory HFileBlock will do nothing when calling retain or release methods, because
its memory will be garbage collected by JVM, even if its reference count decrease to zero, we can
do nothing for the de-allocating.
<p></div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="SharedMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>SharedMemHFileBlock</code></a></li>
</ul>
</dd>
</dl>
</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="inherited-list">
<h2 id="nested-classes-inherited-from-class-org.apache.hadoop.hbase.io.hfile.HFileBlock">Nested classes/interfaces inherited from class&nbsp;org.apache.hadoop.hbase.io.hfile.<a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></h2>
<code><a href="HFileBlock.BlockDeserializer.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockDeserializer</a>, <a href="HFileBlock.BlockIterator.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockIterator</a>, <a href="HFileBlock.BlockWritable.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.BlockWritable</a>, <a href="HFileBlock.FSReader.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReader</a>, <a href="HFileBlock.FSReaderImpl.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock.FSReaderImpl</a>, <a href="HFileBlock.Header.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Header</a>, <a href="HFileBlock.Writer.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock.Writer</a></code></div>
</section>
</li>
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="inherited-list">
<h3 id="fields-inherited-from-class-org.apache.hadoop.hbase.io.hfile.HFileBlock">Fields inherited from class&nbsp;org.apache.hadoop.hbase.io.hfile.<a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></h3>
<code><a href="HFileBlock.html#BLOCK_DESERIALIZER">BLOCK_DESERIALIZER</a>, <a href="HFileBlock.html#BLOCK_METADATA_SPACE">BLOCK_METADATA_SPACE</a>, <a href="HFileBlock.html#CHECKSUM_SIZE">CHECKSUM_SIZE</a>, <a href="HFileBlock.html#CHECKSUM_VERIFICATION_NUM_IO_THRESHOLD">CHECKSUM_VERIFICATION_NUM_IO_THRESHOLD</a>, <a href="HFileBlock.html#DONT_FILL_HEADER">DONT_FILL_HEADER</a>, <a href="HFileBlock.html#DUMMY_HEADER_NO_CHECKSUM">DUMMY_HEADER_NO_CHECKSUM</a>, <a href="HFileBlock.html#FILL_HEADER">FILL_HEADER</a>, <a href="HFileBlock.html#FIXED_OVERHEAD">FIXED_OVERHEAD</a>, <a href="HFileBlock.html#MULTI_BYTE_BUFFER_HEAP_SIZE">MULTI_BYTE_BUFFER_HEAP_SIZE</a></code></div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<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(org.apache.hadoop.hbase.io.hfile.BlockType,int,int,long,org.apache.hadoop.hbase.nio.ByteBuff,boolean,long,int,int,org.apache.hadoop.hbase.io.hfile.HFileContext,org.apache.hadoop.hbase.io.ByteBuffAllocator)" class="member-name-link">ExclusiveMemHFileBlock</a><wbr>(<a href="BlockType.html" title="enum class in org.apache.hadoop.hbase.io.hfile">BlockType</a>&nbsp;blockType,
int&nbsp;onDiskSizeWithoutHeader,
int&nbsp;uncompressedSizeWithoutHeader,
long&nbsp;prevBlockOffset,
<a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a>&nbsp;buf,
boolean&nbsp;fillHeader,
long&nbsp;offset,
int&nbsp;nextBlockOnDiskSize,
int&nbsp;onDiskDataSizeWithHeader,
<a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a>&nbsp;fileContext,
<a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a>&nbsp;alloc)</code></div>
<div class="col-last even-row-color">&nbsp;</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>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isSharedMem()" class="member-name-link">isSharedMem</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Will be override by <a href="SharedMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>SharedMemHFileBlock</code></a> or <a href="ExclusiveMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>ExclusiveMemHFileBlock</code></a>.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#refCnt()" class="member-name-link">refCnt</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Reference count of this Cacheable.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#release()" class="member-name-link">release</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Call <a href="../../nio/ByteBuff.html#release()"><code>ByteBuff.release()</code></a> to decrease the reference count, if no other reference, it will
return back the <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="external-link"><code>ByteBuffer</code></a> to <a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io"><code>ByteBuffAllocator</code></a></div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="ExclusiveMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">ExclusiveMemHFileBlock</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#retain()" class="member-name-link">retain</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Increase its reference count, and only when no reference we can free the object's memory.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.hadoop.hbase.io.hfile.HFileBlock">Methods inherited from class&nbsp;org.apache.hadoop.hbase.io.hfile.<a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></h3>
<code><a href="HFileBlock.html#createFromBuff(org.apache.hadoop.hbase.nio.ByteBuff,boolean,long,int,org.apache.hadoop.hbase.io.hfile.HFileContext,org.apache.hadoop.hbase.io.ByteBuffAllocator)">createFromBuff</a>, <a href="HFileBlock.html#deepCloneOnHeap(org.apache.hadoop.hbase.io.hfile.HFileBlock)">deepCloneOnHeap</a>, <a href="HFileBlock.html#equals(java.lang.Object)">equals</a>, <a href="HFileBlock.html#getBlockType()">getBlockType</a>, <a href="HFileBlock.html#getBufferReadOnly()">getBufferReadOnly</a>, <a href="HFileBlock.html#getBufferWithoutHeader()">getBufferWithoutHeader</a>, <a href="HFileBlock.html#getByteBuffAllocator()">getByteBuffAllocator</a>, <a href="HFileBlock.html#getBytesPerChecksum()">getBytesPerChecksum</a>, <a href="HFileBlock.html#getByteStream()">getByteStream</a>, <a href="HFileBlock.html#getChecksumType()">getChecksumType</a>, <a href="HFileBlock.html#getDataBlockEncoding()">getDataBlockEncoding</a>, <a href="HFileBlock.html#getDataBlockEncodingId()">getDataBlockEncodingId</a>, <a href="HFileBlock.html#getDeserializer()">getDeserializer</a>, <a href="HFileBlock.html#getDummyHeaderForVersion()">getDummyHeaderForVersion</a>, <a href="HFileBlock.html#getHFileContext()">getHFileContext</a>, <a href="HFileBlock.html#getMetaData(java.nio.ByteBuffer)">getMetaData</a>, <a href="HFileBlock.html#getNextBlockOnDiskSize()">getNextBlockOnDiskSize</a>, <a href="HFileBlock.html#getOffset()">getOffset</a>, <a href="HFileBlock.html#getOnDiskDataSizeWithHeader()">getOnDiskDataSizeWithHeader</a>, <a href="HFileBlock.html#getOnDiskSizeWithHeader()">getOnDiskSizeWithHeader</a>, <a href="HFileBlock.html#getOnDiskSizeWithoutHeader()">getOnDiskSizeWithoutHeader</a>, <a href="HFileBlock.html#getPrevBlockOffset()">getPrevBlockOffset</a>, <a href="HFileBlock.html#getSerializedLength()">getSerializedLength</a>, <a href="HFileBlock.html#getUncompressedSizeWithoutHeader()">getUncompressedSizeWithoutHeader</a>, <a href="HFileBlock.html#hashCode()">hashCode</a>, <a href="HFileBlock.html#headerSize()">headerSize</a>, <a href="HFileBlock.html#headerSize(boolean)">headerSize</a>, <a href="HFileBlock.html#heapSize()">heapSize</a>, <a href="HFileBlock.html#isUnpacked()">isUnpacked</a>, <a href="HFileBlock.html#sanityCheck()">sanityCheck</a>, <a href="HFileBlock.html#sanityCheckUncompressed()">sanityCheckUncompressed</a>, <a href="HFileBlock.html#serialize(java.nio.ByteBuffer,boolean)">serialize</a>, <a href="HFileBlock.html#toString()">toString</a>, <a href="HFileBlock.html#toStringHeader(org.apache.hadoop.hbase.nio.ByteBuff)">toStringHeader</a>, <a href="HFileBlock.html#totalChecksumBytes()">totalChecksumBytes</a>, <a href="HFileBlock.html#touch()">touch</a>, <a href="HFileBlock.html#touch(java.lang.Object)">touch</a>, <a href="HFileBlock.html#unpack(org.apache.hadoop.hbase.io.hfile.HFileContext,org.apache.hadoop.hbase.io.hfile.HFileBlock.FSReader)">unpack</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/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#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#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>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.hadoop.hbase.nio.HBaseReferenceCounted">Methods inherited from interface&nbsp;org.apache.hadoop.hbase.nio.<a href="../../nio/HBaseReferenceCounted.html" title="interface in org.apache.hadoop.hbase.nio">HBaseReferenceCounted</a></h3>
<code><a href="../../nio/HBaseReferenceCounted.html#release(int)">release</a>, <a href="../../nio/HBaseReferenceCounted.html#retain(int)">retain</a></code></div>
</section>
</li>
</ul>
</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;(org.apache.hadoop.hbase.io.hfile.BlockType,int,int,long,org.apache.hadoop.hbase.nio.ByteBuff,boolean,long,int,int,org.apache.hadoop.hbase.io.hfile.HFileContext,org.apache.hadoop.hbase.io.ByteBuffAllocator)">
<h3>ExclusiveMemHFileBlock</h3>
<div class="member-signature"><span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/ExclusiveMemHFileBlock.html#line-39">ExclusiveMemHFileBlock</a></span><wbr><span class="parameters">(<a href="BlockType.html" title="enum class in org.apache.hadoop.hbase.io.hfile">BlockType</a>&nbsp;blockType,
int&nbsp;onDiskSizeWithoutHeader,
int&nbsp;uncompressedSizeWithoutHeader,
long&nbsp;prevBlockOffset,
<a href="../../nio/ByteBuff.html" title="class in org.apache.hadoop.hbase.nio">ByteBuff</a>&nbsp;buf,
boolean&nbsp;fillHeader,
long&nbsp;offset,
int&nbsp;nextBlockOnDiskSize,
int&nbsp;onDiskDataSizeWithHeader,
<a href="HFileContext.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileContext</a>&nbsp;fileContext,
<a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io">ByteBuffAllocator</a>&nbsp;alloc)</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="refCnt()">
<h3>refCnt</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/ExclusiveMemHFileBlock.html#line-47">refCnt</a></span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Cacheable.html#refCnt()">Cacheable</a></code></span></div>
<div class="block">Reference count of this Cacheable.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Cacheable.html#refCnt()">refCnt</a></code>&nbsp;in interface&nbsp;<code><a href="Cacheable.html" title="interface in org.apache.hadoop.hbase.io.hfile">Cacheable</a></code></dd>
<dt>Specified by:</dt>
<dd><code>refCnt</code>&nbsp;in interface&nbsp;<code>org.apache.hbase.thirdparty.io.netty.util.ReferenceCounted</code></dd>
<dt>Overrides:</dt>
<dd><code><a href="HFileBlock.html#refCnt()">refCnt</a></code>&nbsp;in class&nbsp;<code><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="retain()">
<h3>retain</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="ExclusiveMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">ExclusiveMemHFileBlock</a></span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/ExclusiveMemHFileBlock.html#line-52">retain</a></span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="Cacheable.html#retain()">Cacheable</a></code></span></div>
<div class="block">Increase its reference count, and only when no reference we can free the object's memory.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Cacheable.html#retain()">retain</a></code>&nbsp;in interface&nbsp;<code><a href="Cacheable.html" title="interface in org.apache.hadoop.hbase.io.hfile">Cacheable</a></code></dd>
<dt>Specified by:</dt>
<dd><code>retain</code>&nbsp;in interface&nbsp;<code>org.apache.hbase.thirdparty.io.netty.util.ReferenceCounted</code></dd>
<dt>Overrides:</dt>
<dd><code><a href="HFileBlock.html#retain()">retain</a></code>&nbsp;in class&nbsp;<code><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="release()">
<h3>release</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/ExclusiveMemHFileBlock.html#line-58">release</a></span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from class:&nbsp;<code><a href="HFileBlock.html#release()">HFileBlock</a></code></span></div>
<div class="block">Call <a href="../../nio/ByteBuff.html#release()"><code>ByteBuff.release()</code></a> to decrease the reference count, if no other reference, it will
return back the <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/nio/ByteBuffer.html" title="class or interface in java.nio" class="external-link"><code>ByteBuffer</code></a> to <a href="../ByteBuffAllocator.html" title="class in org.apache.hadoop.hbase.io"><code>ByteBuffAllocator</code></a></div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="Cacheable.html#release()">release</a></code>&nbsp;in interface&nbsp;<code><a href="Cacheable.html" title="interface in org.apache.hadoop.hbase.io.hfile">Cacheable</a></code></dd>
<dt>Specified by:</dt>
<dd><code>release</code>&nbsp;in interface&nbsp;<code>org.apache.hbase.thirdparty.io.netty.util.ReferenceCounted</code></dd>
<dt>Overrides:</dt>
<dd><code><a href="HFileBlock.html#release()">release</a></code>&nbsp;in class&nbsp;<code><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isSharedMem()">
<h3>isSharedMem</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name"><a href="../../../../../../src-html/org/apache/hadoop/hbase/io/hfile/ExclusiveMemHFileBlock.html#line-64">isSharedMem</a></span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from class:&nbsp;<code><a href="HFileBlock.html#isSharedMem()">HFileBlock</a></code></span></div>
<div class="block">Will be override by <a href="SharedMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>SharedMemHFileBlock</code></a> or <a href="ExclusiveMemHFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile"><code>ExclusiveMemHFileBlock</code></a>. Return true
by default.</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="HFileBlock.html#isSharedMem()">isSharedMem</a></code>&nbsp;in class&nbsp;<code><a href="HFileBlock.html" title="class in org.apache.hadoop.hbase.io.hfile">HFileBlock</a></code></dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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