Package org.eclipse.mat.parser.model
Class XClassHistogramRecord
- java.lang.Object
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- org.eclipse.mat.snapshot.HistogramRecord
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- org.eclipse.mat.snapshot.ClassHistogramRecord
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- org.eclipse.mat.parser.model.XClassHistogramRecord
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- All Implemented Interfaces:
java.io.Serializable
public final class XClassHistogramRecord extends ClassHistogramRecord
Holds details about a class, the number of instances and the shallow and retained sizes. This hold a direct link to the class instance.- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class org.eclipse.mat.snapshot.HistogramRecord
COMPARATOR_FOR_LABEL, COMPARATOR_FOR_NUMBEROFOBJECTS, COMPARATOR_FOR_RETAINEDHEAPSIZE, COMPARATOR_FOR_USEDHEAPSIZE
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Constructor Summary
Constructors Constructor Description XClassHistogramRecord(ClassImpl classInstance)
Create an XClassHistogramRecord by retrieving information from the class
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description long
calculateRetainedSize(ISnapshot snapshot, boolean calculateIfNotAvailable, boolean approximation, IProgressListener listener)
Find out the retained sizeint
getClassId()
Get id of the class this class histogram record stands for.int[]
getObjectIds()
Get ids of the objects this class histogram record stands for.-
Methods inherited from class org.eclipse.mat.snapshot.ClassHistogramRecord
toString
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Methods inherited from class org.eclipse.mat.snapshot.HistogramRecord
getLabel, getNumberOfObjects, getRetainedHeapSize, getUsedHeapSize, incNumberOfObjects, incNumberOfObjects, incRetainedHeapSize, incUsedHeapSize, reverseComparator, setLabel, setNumberOfObjects, setRetainedHeapSize, setUsedHeapSize
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Constructor Detail
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XClassHistogramRecord
public XClassHistogramRecord(ClassImpl classInstance) throws SnapshotException
Create an XClassHistogramRecord by retrieving information from the class- Parameters:
classInstance
- the class- Throws:
SnapshotException
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Method Detail
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getClassId
public int getClassId()
Description copied from class:ClassHistogramRecord
Get id of the class this class histogram record stands for.- Overrides:
getClassId
in classClassHistogramRecord
- Returns:
- id of the class this class histogram record stands for
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getObjectIds
public int[] getObjectIds()
Description copied from class:ClassHistogramRecord
Get ids of the objects this class histogram record stands for.- Overrides:
getObjectIds
in classClassHistogramRecord
- Returns:
- ids of the objects this class histogram record stands for
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calculateRetainedSize
public long calculateRetainedSize(ISnapshot snapshot, boolean calculateIfNotAvailable, boolean approximation, IProgressListener listener) throws SnapshotException
Description copied from class:ClassHistogramRecord
Find out the retained size- Overrides:
calculateRetainedSize
in classClassHistogramRecord
- Parameters:
snapshot
- the snapshotcalculateIfNotAvailable
- whether to calculate the size if not already availableapproximation
- whether to use an approximation to the retained size (sum of the individual retained sizes)listener
- to report progress and errors- Returns:
- the retained size, negated if approximate, 0 if not available
- Throws:
SnapshotException
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