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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">com.ibm.j9ddr.vm29.j9.gc</a></div> |
| <h2 title="Class GCObjectModel" class="title">Class GCObjectModel</h2> |
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| <li><a href="GCBase.html" title="class in com.ibm.j9ddr.vm29.j9.gc">com.ibm.j9ddr.vm29.j9.gc.GCBase</a></li> |
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| <li>com.ibm.j9ddr.vm29.j9.gc.GCObjectModel</li> |
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| <pre>public abstract class <span class="typeNameLabel">GCObjectModel</span> |
| extends <a href="GCBase.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCBase</a></pre> |
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| <h3>Field Summary</h3> |
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| <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 com.ibm.j9ddr.vm29.j9.gc.GCArrayObjectModel</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#indexableObjectModel">indexableObjectModel</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected com.ibm.j9ddr.vm29.j9.gc.GCMixedObjectModel</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#mixedObjectModel">mixedObjectModel</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
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| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">GCObjectModel</a></span>()</code></th> |
| <td class="colLast"> </td> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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>abstract <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="#adjustSizeInBytes(com.ibm.j9ddr.vm29.types.UDATA)">adjustSizeInBytes</a></span>​(<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> sizeInBytes)</code></th> |
| <td class="colLast"> |
| <div class="block">Object size should be at least minimumConsumedSize |
| and 8 byte aligned.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="GCObjectModel.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCObjectModel</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#from()">from</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Factory method to construct an appropriate object model.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>abstract <a href="../../types/U32.html" title="class in com.ibm.j9ddr.vm29.types">U32</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getAge(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getAge</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the age of an object.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getClassShape(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer)">getClassShape</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the shape of a class.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>abstract <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="#getClassShape(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getClassShape</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the shape of an object.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getConsumedSizeInBytesWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getConsumedSizeInBytesWithHeader</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Same as getSizeInBytesWithHeader, |
| except it takes into account |
| object alignment and minimum object size</div> |
| </td> |
| </tr> |
| <tr id="i6" 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="#getConsumedSizeInSlotsWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getConsumedSizeInSlotsWithHeader</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Same as getSizeInSlotsWithHeader, |
| except it takes into account |
| object alignment and minimum object size</div> |
| </td> |
| </tr> |
| <tr id="i7" 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="#getDataSizeInBytes(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer)">getDataSizeInBytes</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer array)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size of data in an indexable object, in bytes, including leaves, excluding the header.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>abstract <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="#getElementAddress(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer,int,int)">getElementAddress</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer indexableObjectPointer, |
| int elementIndex, |
| int elementSize)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the address of the element at elementIndex logical offset into indexableObjectPointer, assuming that each |
| element is dataSize bytes.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getHashcodeOffset(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getHashcodeOffset</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>abstract <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="#getHeaderSize(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getHeaderSize</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size of an object header, in bytes.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>abstract long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getObjectAlignmentInBytes()">getObjectAlignmentInBytes</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns run-time object alignment in bytes.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>abstract <a href="../../types/I32.html" title="class in com.ibm.j9ddr.vm29.types">I32</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getObjectHashCode(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getObjectHashCode</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Determine the basic hash code for the specified object.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getRememberedBits(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getRememberedBits</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the collector bits from object's header.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>abstract long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getScanType(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getScanType</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getSizeInBytesDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getSizeInBytesDeadObject</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size in bytes of a dead object.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>abstract <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="#getSizeInBytesMultiSlotDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getSizeInBytesMultiSlotDeadObject</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size, in bytes, of a multi-slot dead object.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getSizeInBytesSingleSlotDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getSizeInBytesSingleSlotDeadObject</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size, in bytes, of a single slot dead object.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>abstract <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="#getSizeInBytesWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getSizeInBytesWithHeader</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size of an object, in bytes, including the header.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getSizeInElements(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getSizeInElements</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size of an indexable object in elements.</div> |
| </td> |
| </tr> |
| <tr id="i20" 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="#getSizeInSlotsWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getSizeInSlotsWithHeader</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the size of an object, in slots, including the header.</div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>abstract <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="#getTotalFootprintInBytesWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">getTotalFootprintInBytesWithHeader</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Get the total footprint of an object, in bytes, including the object header and all data.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasBeenHashed(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">hasBeenHashed</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object has been hashed, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hasBeenMoved(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">hasBeenMoved</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object has been moved after being hashed, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">isDeadObject</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object is dead, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer)">isIndexable</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an class is indexable, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">isIndexable</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object is indexable, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isInlineContiguousArraylet(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer)">isInlineContiguousArraylet</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer arrayPtr)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isOld(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">isOld</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object is old, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isRemembered(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">isRemembered</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object is remembered, FALSE otherwise.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>abstract boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isSingleSlotDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)">isSingleSlotDeadObject</a></span>​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns TRUE if an object is a dead single slot object, FALSE otherwise.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.com.ibm.j9ddr.vm29.j9.gc.GCBase"> |
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| </a> |
| <h3>Methods declared in class com.ibm.j9ddr.vm29.j9.gc.<a href="GCBase.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCBase</a></h3> |
| <code><a href="GCBase.html#getExtensions()">getExtensions</a>, <a href="GCBase.html#getJavaVM()">getJavaVM</a></code></li> |
| </ul> |
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| <h3>Methods declared in class 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> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
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| <ul class="blockList"> |
| <li class="blockList"><a id="field.detail"> |
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| </a> |
| <h3>Field Detail</h3> |
| <a id="mixedObjectModel"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>mixedObjectModel</h4> |
| <pre>protected com.ibm.j9ddr.vm29.j9.gc.GCMixedObjectModel mixedObjectModel</pre> |
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| </ul> |
| <a id="indexableObjectModel"> |
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| <li class="blockList"> |
| <h4>indexableObjectModel</h4> |
| <pre>protected com.ibm.j9ddr.vm29.j9.gc.GCArrayObjectModel indexableObjectModel</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
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| <h3>Constructor Detail</h3> |
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| <h4>GCObjectModel</h4> |
| <pre>protected GCObjectModel() |
| 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> |
| </dl> |
| </li> |
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| <a id="from()"> |
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| <h4>from</h4> |
| <pre class="methodSignature">public static <a href="GCObjectModel.html" title="class in com.ibm.j9ddr.vm29.j9.gc">GCObjectModel</a> from() |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Factory method to construct an appropriate object model.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>structure</code> - the J9JavaVM structure to use</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an instance of ObjectModel</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="adjustSizeInBytes(com.ibm.j9ddr.vm29.types.UDATA)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adjustSizeInBytes</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> adjustSizeInBytes​(<a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> sizeInBytes)</pre> |
| <div class="block">Object size should be at least minimumConsumedSize |
| and 8 byte aligned.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>sizeInBytes</code> - Real size of an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Adjusted size</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getClassShape(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getClassShape</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getClassShape​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the shape of an object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to object whose shape is required.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The shape of the object</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getClassShape(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getClassShape</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getClassShape​(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the shape of a class.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to J9Object whose shape is required.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The shape of the class</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isIndexable</h4> |
| <pre class="methodSignature">public abstract boolean isIndexable​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object is indexable, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object is indexable, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isIndexable(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isIndexable</h4> |
| <pre class="methodSignature">public abstract boolean isIndexable​(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an class is indexable, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>clazz</code> - Pointer to an J9Class</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an class is indexable, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDeadObject</h4> |
| <pre class="methodSignature">public abstract boolean isDeadObject​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object is dead, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object is dead, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isSingleSlotDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isSingleSlotDeadObject</h4> |
| <pre class="methodSignature">public abstract boolean isSingleSlotDeadObject​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object is a dead single slot object, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object is a dead single slot object, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSizeInBytesMultiSlotDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getSizeInBytesMultiSlotDeadObject</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getSizeInBytesMultiSlotDeadObject​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size, in bytes, of a multi-slot dead object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size, in bytes, of a multi-slot dead object</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSizeInBytesSingleSlotDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
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| </a> |
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| <h4>getSizeInBytesSingleSlotDeadObject</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getSizeInBytesSingleSlotDeadObject​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object)</pre> |
| <div class="block">Returns the size, in bytes, of a single slot dead object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size, in bytes, of a single slot dead object</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getObjectAlignmentInBytes()"> |
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| <h4>getObjectAlignmentInBytes</h4> |
| <pre class="methodSignature">public abstract long getObjectAlignmentInBytes()</pre> |
| <div class="block">Returns run-time object alignment in bytes.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The alignment in bytes</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSizeInBytesDeadObject(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
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| </a> |
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| <h4>getSizeInBytesDeadObject</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getSizeInBytesDeadObject​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size in bytes of a dead object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size in bytes of a dead object</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSizeInBytesWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSizeInBytesWithHeader</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getSizeInBytesWithHeader​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size of an object, in bytes, including the header.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size of an object, in bytes, including the header</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getTotalFootprintInBytesWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTotalFootprintInBytesWithHeader</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getTotalFootprintInBytesWithHeader​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Get the total footprint of an object, in bytes, including the object header and all data. |
| If the object has a discontiguous representation, this method should return the size of |
| the root object plus the total of all the discontiguous parts of the object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the total size of an object, in bytes, including discontiguous parts</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getConsumedSizeInBytesWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getConsumedSizeInBytesWithHeader</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getConsumedSizeInBytesWithHeader​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Same as getSizeInBytesWithHeader, |
| except it takes into account |
| object alignment and minimum object size</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The consumed heap size of an object, in bytes, including the header</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSizeInSlotsWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSizeInSlotsWithHeader</h4> |
| <pre class="methodSignature">public <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getSizeInSlotsWithHeader​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size of an object, in slots, including the header.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size of an object, in slots, including the header</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getConsumedSizeInSlotsWithHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getConsumedSizeInSlotsWithHeader</h4> |
| <pre class="methodSignature">public <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getConsumedSizeInSlotsWithHeader​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Same as getSizeInSlotsWithHeader, |
| except it takes into account |
| object alignment and minimum object size</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The consumed heap size of an object, in slots, including the header</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getAge(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getAge</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/U32.html" title="class in com.ibm.j9ddr.vm29.types">U32</a> getAge​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the age of an object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The age of the object</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isRemembered(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isRemembered</h4> |
| <pre class="methodSignature">public abstract boolean isRemembered​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object is remembered, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object is remembered, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getRememberedBits(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getRememberedBits</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getRememberedBits​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the collector bits from object's header.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>collector bits</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isOld(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isOld</h4> |
| <pre class="methodSignature">public abstract boolean isOld​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object is old, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object is in the old area, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSizeInElements(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSizeInElements</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getSizeInElements​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">IllegalArgumentException</a>, |
| <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size of an indexable object in elements.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>array</code> - Pointer to the indexable object whose size is required</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Size of object in elements</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">IllegalArgumentException</a></code> - if the object is not an array</dd> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getScanType(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getScanType</h4> |
| <pre class="methodSignature">public abstract long getScanType​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| 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> |
| </dl> |
| </li> |
| </ul> |
| <a id="hasBeenHashed(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hasBeenHashed</h4> |
| <pre class="methodSignature">public abstract boolean hasBeenHashed​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object has been hashed, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object has been hashed, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="hasBeenMoved(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hasBeenMoved</h4> |
| <pre class="methodSignature">public abstract boolean hasBeenMoved​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns TRUE if an object has been moved after being hashed, FALSE otherwise.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>TRUE if an object has been moved after being hashed, FALSE otherwise</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getObjectHashCode(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getObjectHashCode</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/I32.html" title="class in com.ibm.j9ddr.vm29.types">I32</a> getObjectHashCode​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Determine the basic hash code for the specified object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>object</code> - [in] the object to be hashed</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the persistent, basic hash code for the object</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getHashcodeOffset(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getHashcodeOffset</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getHashcodeOffset​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| 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> |
| </dl> |
| </li> |
| </ul> |
| <a id="getDataSizeInBytes(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getDataSizeInBytes</h4> |
| <pre class="methodSignature">public <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getDataSizeInBytes​(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer array) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size of data in an indexable object, in bytes, including leaves, excluding the header.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>array</code> - Pointer to the indexable object whose size is required</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size of an object in bytes excluding the header</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getHeaderSize(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getHeaderSize</h4> |
| <pre class="methodSignature">public abstract <a href="../../types/UDATA.html" title="class in com.ibm.j9ddr.vm29.types">UDATA</a> getHeaderSize​(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer object) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the size of an object header, in bytes.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>objectPtr</code> - Pointer to an object</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The size of an object header, in bytes.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getElementAddress(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer,int,int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getElementAddress</h4> |
| <pre class="methodSignature">public abstract <a href="../../pointer/VoidPointer.html" title="class in com.ibm.j9ddr.vm29.pointer">VoidPointer</a> getElementAddress​(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer indexableObjectPointer, |
| int elementIndex, |
| int elementSize) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <div class="block">Returns the address of the element at elementIndex logical offset into indexableObjectPointer, assuming that each |
| element is dataSize bytes.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>indexableObjectPointer</code> - The array from which we should look-up the address</dd> |
| <dd><code>elementIndex</code> - The logical index number of the element within the array</dd> |
| <dd><code>elementSize</code> - The size, in bytes, of a single element of the array</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A pointer to the element</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isInlineContiguousArraylet(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>isInlineContiguousArraylet</h4> |
| <pre class="methodSignature">public boolean isInlineContiguousArraylet​(com.ibm.j9ddr.vm29.pointer.generated.J9IndexableObjectPointer arrayPtr) |
| throws <a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>arrayPtr</code> - array object we are checking for isInlineContiguousArraylet</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../CorruptDataException.html" title="class in com.ibm.j9ddr">CorruptDataException</a></code> - If there's a problem accessing the layout of the indexable object</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
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