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| <li>Summary: </li> |
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| <li>Detail: </li> |
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| <div class="sub-title"><span class="module-label-in-type">Module</span> <a href="../../../../module-summary.html">openj9.dtfj</a></div> |
| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">com.ibm.dtfj.phd</a></div> |
| <h1 title="Class PHDJavaObject" class="title">Class PHDJavaObject</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a> |
| <div class="inheritance">com.ibm.dtfj.phd.PHDJavaObject</div> |
| </div> |
| <section class="description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">PHDJavaObject</span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a> |
| implements <a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></span></div> |
| </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 class </code></div> |
| <div class="col-second even-row-color"><code><span class="member-name-link"><a href="PHDJavaObject.Builder.html" title="class in com.ibm.dtfj.phd">PHDJavaObject.Builder</a></span></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">The constructors for PHDJavaObject used to take up to 11 arguments, many of which were ints.</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field.summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</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">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>static long</code></div> |
| <div class="col-second even-row-color"><code><span class="member-name-link"><a href="#UNSPECIFIED_INSTANCE_SIZE">UNSPECIFIED_INSTANCE_SIZE</a></span></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">instance size is an unsigned int in the datastream, so -1L is a value that cannot collide</div> |
| </div> |
| </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><span class="member-name-link"><a href="#%3Cinit%3E(com.ibm.dtfj.phd.PHDJavaObject.Builder)">PHDJavaObject</a></span>​(<a href="PHDJavaObject.Builder.html" title="class in com.ibm.dtfj.phd">PHDJavaObject.Builder</a> builder)</code></div> |
| <div class="col-last even-row-color"> </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-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#arraycopy(int,java.lang.Object,int,int)">arraycopy</a></span>​(int srcStart, |
| <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a> dst, |
| int dstStart, |
| int length)</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Copies data from the image array into a local Java array.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>boolean</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#equals(java.lang.Object)">equals</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a> o)</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Compares the argument to the receiver, and answers true |
| if they represent the <em>same</em> object using a class |
| specific comparison.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getArraySize()">getArraySize</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Get the number of elements in this array.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getHashcode()">getHashcode</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Fetch the basic hash code for the object.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="../java/JavaHeap.html" title="interface in com.ibm.dtfj.java">JavaHeap</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getHeap()">getHeap</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Gets the heap where this object is located.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="../image/ImagePointer.html" title="interface in com.ibm.dtfj.image">ImagePointer</a></code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getID()">getID</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">The ID of an object is a unique address is memory which identifies the object.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="../java/JavaClass.html" title="interface in com.ibm.dtfj.java">JavaClass</a></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getJavaClass()">getJavaClass</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Get the JavaClass instance which represents the class of this object.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getPersistentHashcode()">getPersistentHashcode</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Fetch the basic hash code of the object in the image.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a><<a href="../java/JavaReference.html" title="interface in com.ibm.dtfj.java">JavaReference</a>></code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getReferences()">getReferences</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Get the set of references from this object.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a><<a href="../image/ImageSection.html" title="interface in com.ibm.dtfj.image">ImageSection</a>></code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getSections()">getSections</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">An object is represented in the Java runtime by one or more regions of memory.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>long</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getSize()">getSize</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Get the number of bytes of memory occupied by this object on the heap.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div> |
| <div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#hashCode()">hashCode</a></span>()</code></div> |
| <div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Answers an integer hash code for the receiver.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>boolean</code></div> |
| <div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#isArray()">isArray</a></span>()</code></div> |
| <div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> |
| <div class="block">Is this object an array ?</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods.inherited.from.class.java.lang.Object">Methods declared in class java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link" target="_blank">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="UNSPECIFIED_INSTANCE_SIZE"> |
| <h3>UNSPECIFIED_INSTANCE_SIZE</h3> |
| <div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type">long</span> <span class="element-name">UNSPECIFIED_INSTANCE_SIZE</span></div> |
| <div class="block">instance size is an unsigned int in the datastream, so -1L is a value that cannot collide</div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd><a href="../../../../../constant-values.html#com.ibm.dtfj.phd.PHDJavaObject.UNSPECIFIED_INSTANCE_SIZE">Constant Field Values</a></dd> |
| </dl> |
| </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>(com.ibm.dtfj.phd.PHDJavaObject.Builder)"> |
| <h3>PHDJavaObject</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name">PHDJavaObject</span>​<span class="parameters">(<a href="PHDJavaObject.Builder.html" title="class in com.ibm.dtfj.phd">PHDJavaObject.Builder</a> builder)</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="arraycopy(int,java.lang.Object,int,int)"> |
| <h3>arraycopy</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">arraycopy</span>​<span class="parameters">(int srcStart, |
| <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a> dst, |
| int dstStart, |
| int length)</span> |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a>, |
| <a href="../image/MemoryAccessException.html" title="class in com.ibm.dtfj.image">MemoryAccessException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#arraycopy(int,java.lang.Object,int,int)">JavaObject</a></code></span></div> |
| <div class="block">Copies data from the image array into a local Java array. |
| The dst object must be an array of the appropriate type -- |
| a base type array for base types, or a JavaObject array |
| for reference arrays.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#arraycopy(int,java.lang.Object,int,int)">arraycopy</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Parameters:</dt> |
| <dd><code>srcStart</code> - index in the receiver to start copying from</dd> |
| <dd><code>dst</code> - the destination array</dd> |
| <dd><code>dstStart</code> - index in the destination array to start copying into</dd> |
| <dd><code>length</code> - the number of elements to be copied</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| <dd><code><a href="../image/MemoryAccessException.html" title="class in com.ibm.dtfj.image">MemoryAccessException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getArraySize()"> |
| <h3>getArraySize</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name">getArraySize</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getArraySize()">JavaObject</a></code></span></div> |
| <div class="block">Get the number of elements in this array.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getArraySize()">getArraySize</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the number of elements in this array |
| <p></dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getHashcode()"> |
| <h3>getHashcode</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getHashcode</span>() |
| throws <span class="exceptions"><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a>, |
| <a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getHashcode()">JavaObject</a></code></span></div> |
| <div class="block">Fetch the basic hash code for the object. This is the hash code which |
| would be returned if a Java thread had requested it. Typically the hash |
| code is based on the address of an object, and may change if the object |
| is moved by a garbage collect cycle.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getHashcode()">getHashcode</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the basic hash code of the object in the image.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code> - if the hash code cannot be determined</dd> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| <dt>See Also:</dt> |
| <dd><a href="../java/JavaObject.html#getPersistentHashcode()"><code>JavaObject.getPersistentHashcode()</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getHeap()"> |
| <h3>getHeap</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="../java/JavaHeap.html" title="interface in com.ibm.dtfj.java">JavaHeap</a></span> <span class="element-name">getHeap</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a>, |
| <a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getHeap()">JavaObject</a></code></span></div> |
| <div class="block">Gets the heap where this object is located.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getHeap()">getHeap</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the <code>JavaHeap</code> instance representing the heap where this object is stored in memory.</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code> - if the heap information for this object is corrupt.</dd> |
| <dd><code><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code> - if the heap information for this object is not available.</dd> |
| <dt>See Also:</dt> |
| <dd><a href="../java/JavaHeap.html" title="interface in com.ibm.dtfj.java"><code>JavaHeap</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getID()"> |
| <h3>getID</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="../image/ImagePointer.html" title="interface in com.ibm.dtfj.image">ImagePointer</a></span> <span class="element-name">getID</span>()</div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getID()">JavaObject</a></code></span></div> |
| <div class="block">The ID of an object is a unique address is memory which identifies the object. |
| The data at this memory is implementation defined. The object may be |
| non-contiguous. Portions of the object may appear below or above this address.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getID()">getID</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the runtime-wide unique identifier for the object</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getJavaClass()"> |
| <h3>getJavaClass</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="../java/JavaClass.html" title="interface in com.ibm.dtfj.java">JavaClass</a></span> <span class="element-name">getJavaClass</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getJavaClass()">JavaObject</a></code></span></div> |
| <div class="block">Get the JavaClass instance which represents the class of this object.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getJavaClass()">getJavaClass</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the JavaClass instance which represents the class of this object</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getPersistentHashcode()"> |
| <h3>getPersistentHashcode</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getPersistentHashcode</span>() |
| throws <span class="exceptions"><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a>, |
| <a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getPersistentHashcode()">JavaObject</a></code></span></div> |
| <div class="block">Fetch the basic hash code of the object in the image. This hash code |
| is guaranteed to be persistent between multiple snapshots of the same Image. |
| If the hash code cannot be determined, or if the hash code for this object |
| could change between snapshots, an exception is thrown. |
| <p> |
| <i>If the VM uses a 'hasBeenHashed' bit, the value of this bit can be |
| inferred by calling getPersistentHashcode(). If the persistent hash code |
| is not available, then the 'hasBeenHashed' bit has not been set, and the |
| hash of the object could change if the object moves between snapshots</i></div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getPersistentHashcode()">getPersistentHashcode</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the basic hash code of the object in the image</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code> - if a hash code cannot be determined, or if the |
| hash code could change between successive snapshots</dd> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| <dt>See Also:</dt> |
| <dd><a href="../java/JavaObject.html#getHashcode()"><code>JavaObject.getHashcode()</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getReferences()"> |
| <h3>getReferences</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a><<a href="../java/JavaReference.html" title="interface in com.ibm.dtfj.java">JavaReference</a>></span> <span class="element-name">getReferences</span>()</div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getReferences()">JavaObject</a></code></span></div> |
| <div class="block">Get the set of references from this object. |
| <p> |
| Corrupt references will be returned as CorruptData objects by the Iterator</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getReferences()">getReferences</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>an iterator of JavaReference and CorruptData objects</dd> |
| <dt>See Also:</dt> |
| <dd><a href="../java/JavaReference.html" title="interface in com.ibm.dtfj.java"><code>JavaReference</code></a>, |
| <a href="../image/CorruptData.html" title="interface in com.ibm.dtfj.image"><code>CorruptData</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getSections()"> |
| <h3>getSections</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a><<a href="../image/ImageSection.html" title="interface in com.ibm.dtfj.image">ImageSection</a>></span> <span class="element-name">getSections</span>()</div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getSections()">JavaObject</a></code></span></div> |
| <div class="block">An object is represented in the Java runtime by one or more regions of memory. |
| These include the object's header and the data in the object. |
| |
| In certain allocation strategies, an object's header and data may be allocated |
| contiguously. In this case, this method may return an iterator for a single |
| section. |
| |
| In other schemes, the header may be separate from the data or the data may be |
| broken up into multiple regions. Additionally, this function does not guarantee |
| that the memory used by this object is not also shared by one or more other |
| objects. |
| |
| Callers should not make any assumptions about the contents of the memory.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getSections()">getSections</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>a collection of sections that make up this object</dd> |
| <dt>See Also:</dt> |
| <dd><a href="../image/ImageSection.html" title="interface in com.ibm.dtfj.image"><code>ImageSection</code></a>, |
| <a href="../image/CorruptData.html" title="interface in com.ibm.dtfj.image"><code>CorruptData</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="getSize()"> |
| <h3>getSize</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">long</span> <span class="element-name">getSize</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#getSize()">JavaObject</a></code></span></div> |
| <div class="block">Get the number of bytes of memory occupied by this object on the heap. |
| The memory may not necessarily be contiguous</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#getSize()">getSize</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="isArray()"> |
| <h3>isArray</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name">isArray</span>() |
| throws <span class="exceptions"><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="../java/JavaObject.html#isArray()">JavaObject</a></code></span></div> |
| <div class="block">Is this object an array ?</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#isArray()">isArray</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>true if the receiver represents an instance of an array, or |
| false otherwise</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="equals(java.lang.Object)"> |
| <h3>equals</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">boolean</span> <span class="element-name">equals</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a> o)</span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from class: <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a></code></span></div> |
| <div class="block">Compares the argument to the receiver, and answers true |
| if they represent the <em>same</em> object using a class |
| specific comparison. The implementation in Object answers |
| true only if the argument is the exact same object as the |
| receiver (==).</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#equals(java.lang.Object)">equals</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Overrides:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a></code> in class <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></code></dd> |
| <dt>Parameters:</dt> |
| <dd><code>o</code> - Object |
| the object to compare with this object.</dd> |
| <dt>Returns:</dt> |
| <dd>boolean |
| <code>true</code> |
| if the object is the same as this object |
| <code>false</code> |
| if it is different from this object.</dd> |
| <dt>See Also:</dt> |
| <dd><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank"><code>Object.hashCode()</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="hashCode()"> |
| <h3>hashCode</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">int</span> <span class="element-name">hashCode</span>()</div> |
| <div class="block"><span class="descfrm-type-label">Description copied from class: <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a></code></span></div> |
| <div class="block">Answers an integer hash code for the receiver. Any two |
| objects which answer <code>true</code> when passed to |
| <code>.equals</code> must answer the same value for this |
| method.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="../java/JavaObject.html#hashCode()">hashCode</a></code> in interface <code><a href="../java/JavaObject.html" title="interface in com.ibm.dtfj.java">JavaObject</a></code></dd> |
| <dt>Overrides:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a></code> in class <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></code></dd> |
| <dt>Returns:</dt> |
| <dd>the receiver's hash.</dd> |
| <dt>See Also:</dt> |
| <dd><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank"><code>Object.equals(java.lang.Object)</code></a></dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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| <footer role="contentinfo"> |
| <hr> |
| <p class="legal-copy"><small><a href="https://www.eclipse.org/openj9/" target="_blank">Eclipse OpenJ9 website.</a><br> To raise a bug report or suggest an improvement create an <a href="https://github.com/eclipse-openj9/openj9/issues" target="_blank">Eclipse Openj9 issue.</a><br> Copyright © 1998, 2021, IBM Corp. and others.</small></p> |
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