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<h2 title="Class GCHeapRegionDescriptorSegregated_V1" class="title">Class GCHeapRegionDescriptorSegregated_V1</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">com.ibm.j9ddr.vm29.j9.gc.GCHeapRegionDescriptor</a></li>
<li>
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<li>com.ibm.j9ddr.vm29.j9.gc.GCHeapRegionDescriptorSegregated_V1</li>
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<pre>public class <span class="typeNameLabel">GCHeapRegionDescriptorSegregated_V1</span>
extends <a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></pre>
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<table class="memberSummary">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Field</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#cellSize">cellSize</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#headOfSpan">headOfSpan</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#highAddress">highAddress</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#lowAddress">lowAddress</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#memoryPool">memoryPool</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected com.ibm.j9ddr.vm29.pointer.generated.MM_MemorySubSpacePointer</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#memorySubSpace">memorySubSpace</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#regionsInSpan">regionsInSpan</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#regionType">regionType</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#sizeClass">sizeClass</a></span></code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#typeFlags">typeFlags</a></span></code></th>
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<h3>Fields declared in class&nbsp;com.ibm.j9ddr.vm29.j9.gc.<a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></h3>
<code><a href="GCHeapRegionDescriptor.html#heapRegionDescriptor">heapRegionDescriptor</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Constructor</th>
<th class="colLast" scope="col">Description</th>
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<tr class="altColor">
<th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorSegregatedPointer)">GCHeapRegionDescriptorSegregated_V1</a></span>&#8203;(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorSegregatedPointer&nbsp;region)</code></th>
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></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>
<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#containsObjects()">containsObjects</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#descriptionString()">descriptionString</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCellSize()">getCellSize</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHeadOfSpan()">getHeadOfSpan</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getHighAddress()">getHighAddress</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the high address of this region</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLowAddress()">getLowAddress</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the low address of this region</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMemoryPool()">getMemoryPool</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>long</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRegionType()">getRegionType</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSize()">getSize</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSizeClass()">getSizeClass</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>com.ibm.j9ddr.vm29.pointer.generated.MM_MemorySubSpacePointer</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSubSpace()">getSubSpace</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code><a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTypeFlags()">getTypeFlags</a></span>()</code></th>
<td class="colLast">
<div class="block">A helper to request the type flags from the Subspace associated with the receiving region.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>protected <a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getWalkableHighAddress()">getWalkableHighAddress</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasValidMarkMap()">hasValidMarkMap</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#init()">init</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isAddressInRegion(com.ibm.j9ddr.vm29.pointer.AbstractPointer)">isAddressInRegion</a></span>&#8203;(<a href="../../pointer/AbstractPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">AbstractPointer</a>&nbsp;address)</code></th>
<td class="colLast">
<div class="block">Determine if the specified address is in the region</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isImmortal()">isImmortal</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isScoped()">isScoped</a></span>()</code></th>
<td class="colLast">&nbsp;</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code><a href="GCObjectHeapIterator.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCObjectHeapIterator</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#objectIterator(boolean,boolean)">objectIterator</a></span>&#8203;(boolean&nbsp;includeLiveObjects,
boolean&nbsp;includeDeadObjects)</code></th>
<td class="colLast">
<div class="block">Create an iterator which iterates over all objects (if any) in the region</div>
</td>
</tr>
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<h3>Methods declared in class&nbsp;com.ibm.j9ddr.vm29.j9.gc.<a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></h3>
<code><a href="GCHeapRegionDescriptor.html#fromHeapRegionDescriptor(com.ibm.j9ddr.vm29.j9.gc.GCHeapRegionDescriptor)">fromHeapRegionDescriptor</a>, <a href="GCHeapRegionDescriptor.html#fromHeapRegionDescriptor(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorPointer)">fromHeapRegionDescriptor</a>, <a href="GCHeapRegionDescriptor.html#getHeapRegionDescriptorPointer()">getHeapRegionDescriptorPointer</a></code></li>
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<h3>Methods declared in class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink" target="_blank">wait</a></code></li>
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<h3>Field Detail</h3>
<a id="sizeClass">
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<h4>sizeClass</h4>
<pre>protected&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> sizeClass</pre>
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<h4>cellSize</h4>
<pre>protected&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> cellSize</pre>
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<h4>lowAddress</h4>
<pre>protected&nbsp;<a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a> lowAddress</pre>
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<h4>highAddress</h4>
<pre>protected&nbsp;<a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a> highAddress</pre>
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<h4>regionsInSpan</h4>
<pre>protected&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> regionsInSpan</pre>
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<pre>protected&nbsp;long regionType</pre>
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<h4>typeFlags</h4>
<pre>protected&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> typeFlags</pre>
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<h4>memorySubSpace</h4>
<pre>protected&nbsp;com.ibm.j9ddr.vm29.pointer.generated.MM_MemorySubSpacePointer memorySubSpace</pre>
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<pre>protected&nbsp;com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer memoryPool</pre>
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<pre>protected&nbsp;<a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a> headOfSpan</pre>
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<h3>Constructor Detail</h3>
<a id="&lt;init&gt;(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorSegregatedPointer)">
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<pre>public&nbsp;GCHeapRegionDescriptorSegregated_V1&#8203;(com.ibm.j9ddr.vm29.pointer.generated.MM_HeapRegionDescriptorSegregatedPointer&nbsp;region)
throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
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<h3>Method Detail</h3>
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<pre class="methodSignature">public&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a>&nbsp;getSizeClass()</pre>
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<pre class="methodSignature">public&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a>&nbsp;getCellSize()
throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
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<a id="objectIterator(boolean,boolean)">
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<h4>objectIterator</h4>
<pre class="methodSignature">public&nbsp;<a href="GCObjectHeapIterator.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCObjectHeapIterator</a>&nbsp;objectIterator&#8203;(boolean&nbsp;includeLiveObjects,
boolean&nbsp;includeDeadObjects)
throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="GCHeapRegionDescriptor.html#objectIterator(boolean,boolean)">GCHeapRegionDescriptor</a></code></span></div>
<div class="block">Create an iterator which iterates over all objects (if any) in the region</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an GCObjectHeapIterator which iterates over all objects in the region</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
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<h4>init</h4>
<pre class="methodSignature">protected&nbsp;void&nbsp;init()
throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
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<h4>getLowAddress</h4>
<pre class="methodSignature">public&nbsp;<a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a>&nbsp;getLowAddress()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="GCHeapRegionDescriptor.html#getLowAddress()">GCHeapRegionDescriptor</a></code></span></div>
<div class="block">Get the low address of this region</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getLowAddress()">getLowAddress</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the lowest address in the region</dd>
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<h4>getHighAddress</h4>
<pre class="methodSignature">public&nbsp;<a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a>&nbsp;getHighAddress()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="GCHeapRegionDescriptor.html#getHighAddress()">GCHeapRegionDescriptor</a></code></span></div>
<div class="block">Get the high address of this region</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getHighAddress()">getHighAddress</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the first address beyond the end of the region</dd>
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<a id="getSize()">
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<h4>getSize</h4>
<pre class="methodSignature">public&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a>&nbsp;getSize()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getSize()">getSize</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The number of contiguous bytes represented by the receiver</dd>
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<h4>getTypeFlags</h4>
<pre class="methodSignature">public&nbsp;<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a>&nbsp;getTypeFlags()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="GCHeapRegionDescriptor.html#getTypeFlags()">GCHeapRegionDescriptor</a></code></span></div>
<div class="block">A helper to request the type flags from the Subspace associated with the receiving region.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getTypeFlags()">getTypeFlags</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The type flags of the Subspace associated with this region</dd>
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<a id="hasValidMarkMap()">
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<h4>hasValidMarkMap</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;hasValidMarkMap()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#hasValidMarkMap()">hasValidMarkMap</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the region has an up-to-date mark map</dd>
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<h4>containsObjects</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;containsObjects()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#containsObjects()">containsObjects</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the region contains objects</dd>
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<h4>getWalkableHighAddress</h4>
<pre class="methodSignature">protected&nbsp;<a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a>&nbsp;getWalkableHighAddress()
throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd>
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<h4>getRegionType</h4>
<pre class="methodSignature">public&nbsp;long&nbsp;getRegionType()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getRegionType()">getRegionType</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>this region's current type</dd>
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<a id="getSubSpace()">
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<pre class="methodSignature">public&nbsp;com.ibm.j9ddr.vm29.pointer.generated.MM_MemorySubSpacePointer&nbsp;getSubSpace()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getSubSpace()">getSubSpace</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the memory subspace associated with this region</dd>
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<a id="getMemoryPool()">
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<h4>getMemoryPool</h4>
<pre class="methodSignature">public&nbsp;com.ibm.j9ddr.vm29.pointer.generated.MM_MemoryPoolPointer&nbsp;getMemoryPool()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getMemoryPool()">getMemoryPool</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the memory subspace associated with this region</dd>
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<a id="isAddressInRegion(com.ibm.j9ddr.vm29.pointer.AbstractPointer)">
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<h4>isAddressInRegion</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isAddressInRegion&#8203;(<a href="../../pointer/AbstractPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">AbstractPointer</a>&nbsp;address)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="GCHeapRegionDescriptor.html#isAddressInRegion(com.ibm.j9ddr.vm29.pointer.AbstractPointer)">GCHeapRegionDescriptor</a></code></span></div>
<div class="block">Determine if the specified address is in the region</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#isAddressInRegion(com.ibm.j9ddr.vm29.pointer.AbstractPointer)">isAddressInRegion</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if address is within the receiver, false otherwise</dd>
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<h4>isImmortal</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isImmortal()</pre>
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<dd><code><a href="GCHeapRegionDescriptor.html#isImmortal()">isImmortal</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the region is associated with a subspace with immortal memory type</dd>
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<pre class="methodSignature">public&nbsp;boolean&nbsp;isScoped()</pre>
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<dd><code><a href="GCHeapRegionDescriptor.html#isScoped()">isScoped</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the region is associated with a subspace with scoped memory type</dd>
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<h4>getHeadOfSpan</h4>
<pre class="methodSignature">public&nbsp;<a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a>&nbsp;getHeadOfSpan()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="GCHeapRegionDescriptor.html#getHeadOfSpan()">getHeadOfSpan</a></code>&nbsp;in class&nbsp;<code><a href="GCHeapRegionDescriptor.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCHeapRegionDescriptor</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>in a spanning region, return to the HEAD of the span; in non-spanning region return this</dd>
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<pre class="methodSignature">public&nbsp;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;descriptionString()</pre>
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