Class FieldSizedCapacityMapExtractor
java.lang.Object
org.eclipse.mat.internal.collectionextract.FieldArrayCollectionExtractor
org.eclipse.mat.internal.collectionextract.FieldSizeArrayCollectionExtractor
org.eclipse.mat.internal.collectionextract.FieldSizedCapacityCollectionExtractor
org.eclipse.mat.internal.collectionextract.FieldSizedCapacityMapExtractor
- All Implemented Interfaces:
ICollectionExtractor,IMapExtractor
public class FieldSizedCapacityMapExtractor
extends FieldSizedCapacityCollectionExtractor
implements IMapExtractor
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Nested Class Summary
Nested classes/interfaces inherited from interface org.eclipse.mat.inspections.collectionextract.IMapExtractor
IMapExtractor.EntryObject -
Constructor Summary
ConstructorsConstructorDescriptionFieldSizedCapacityMapExtractor(String sizeField, String arrayField, String capacityField) -
Method Summary
Modifier and TypeMethodDescriptionextractMapEntries(IObject collection) Extracts the contents of a map (i.e.getCapacity(IObject coll) Return the capacity of the collection, if applicablegetCollisionRatio(IObject coll) Calculates the collision ratio in the collection.booleanCheck if the extractor can calculate collision ratioMethods inherited from class org.eclipse.mat.internal.collectionextract.FieldSizedCapacityCollectionExtractor
extractEntries, extractEntryIds, getArray, getNumberOfNotNullElements, hasCapacity, hasExtractableArray, hasExtractableContentsMethods inherited from class org.eclipse.mat.internal.collectionextract.FieldSizeArrayCollectionExtractor
getSize, hasSizeMethods inherited from class org.eclipse.mat.internal.collectionextract.FieldArrayCollectionExtractor
getFillRatio, hasFillRatioMethods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.eclipse.mat.inspections.collectionextract.ICollectionExtractor
extractEntries, extractEntryIds, getFillRatio, getNumberOfNotNullElements, getSize, hasCapacity, hasExtractableArray, hasExtractableContents, hasFillRatio, hasSize
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Constructor Details
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FieldSizedCapacityMapExtractor
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Method Details
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getCapacity
Description copied from interface:ICollectionExtractorReturn the capacity of the collection, if applicable- Specified by:
getCapacityin interfaceICollectionExtractor- Overrides:
getCapacityin classFieldSizedCapacityCollectionExtractor- Parameters:
coll- - the collection to find the capacity of- Returns:
- the capacity in bytes, or null if unavailable
- Throws:
SnapshotException- if there is a problem retrieving data from the snapshot- See Also:
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hasCollisionRatio
public boolean hasCollisionRatio()Description copied from interface:IMapExtractorCheck if the extractor can calculate collision ratio- Specified by:
hasCollisionRatioin interfaceIMapExtractor- Returns:
- true if @
IMapExtractor.getCollisionRatio(IObject)could be called - See Also:
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getCollisionRatio
Description copied from interface:IMapExtractorCalculates the collision ratio in the collection. Could be an estimate.- Specified by:
getCollisionRatioin interfaceIMapExtractor- Parameters:
coll- - the collection to calculate the collision ratio of- Returns:
- Double number of elements with colliding keys / size
- Throws:
SnapshotException- See Also:
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extractMapEntries
public Iterator<Map.Entry<IObject,IObject>> extractMapEntries(IObject collection) throws SnapshotException Description copied from interface:IMapExtractorExtracts the contents of a map (i.e. an IObject representing a Map) and provides an Iterator over them- Specified by:
extractMapEntriesin interfaceIMapExtractor- Parameters:
collection- - the map to extract contents from- Returns:
- an Iterator over the entries. If the original Map had an Entry object, the content of the iterator would usually be EntryObject
- Throws:
SnapshotException
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