org.eclipse.mat.internal.collectionextract

Class TreeMapCollectionExtractor

java.lang.Object

org.eclipse.mat.internal.collectionextract.MapCollectionExtractorBase

org.eclipse.mat.internal.collectionextract.TreeMapCollectionExtractor

All Implemented Interfaces:

ICollectionExtractor, IMapExtractor

Direct Known Subclasses:

TreeMapArrayCollectionExtractor

public class TreeMapCollectionExtractor
extends MapCollectionExtractorBase

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.mat.inspections.collectionextract.IMapExtractor

IMapExtractor.EntryObject

Constructor Summary

Constructors

Constructor and Description
TreeMapCollectionExtractor(String sizeField, String keyField, String valueField)

Method Summary

Modifier and Type	Method and Description
IObjectArray	extractEntries(IObject coll) Extracts the array containing the collection content
int[]	extractEntryIds(IObject treeMap) Returns the object ids (int) for all objects which are contained in the collection
Double	getCollisionRatio(IObject collection) Calculates the collision ratio in the collection
Double	getFillRatio(IObject coll) Calculate the fill ration of a collection
Integer	getNumberOfNotNullElements(IObject coll) Returns the number of non-null elements in the collection.
Integer	getSize(IObject coll) Extract the size of the collection
boolean	hasCollisionRatio() Check if the extractor can calculate collision ratio
boolean	hasExtractableArray() Return true if the collection array based and the array can be extracted from the heap dump
boolean	hasExtractableContents() Check if the collection has extractable contents
boolean	hasFillRatio() Check if fill ratio for the collection can be calculated, i.e.
boolean	hasSize() Check if the size of the collection can be extracted

Methods inherited from class org.eclipse.mat.internal.collectionextract.MapCollectionExtractorBase

extractMapEntries, getCapacity, hasCapacity

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TreeMapCollectionExtractor

public TreeMapCollectionExtractor(String sizeField,
                                  String keyField,
                                  String valueField)

Method Detail

hasExtractableArray

public boolean hasExtractableArray()

Description copied from interface: ICollectionExtractor

Return true if the collection array based and the array can be extracted from the heap dump

Returns:

extractEntries

public IObjectArray extractEntries(IObject coll)
                            throws SnapshotException

Description copied from interface: ICollectionExtractor

Extracts the array containing the collection content

Returns:

Throws:

SnapshotException

hasExtractableContents

public boolean hasExtractableContents()

Description copied from interface: ICollectionExtractor

Check if the collection has extractable contents

Returns:

extractEntryIds

public int[] extractEntryIds(IObject treeMap)
                      throws SnapshotException

Description copied from interface: ICollectionExtractor

Returns the object ids (int) for all objects which are contained in the collection

Returns:

Throws:

SnapshotException

hasSize

public boolean hasSize()

Description copied from interface: ICollectionExtractor

Check if the size of the collection can be extracted

Returns:

getSize

public Integer getSize(IObject coll)
                throws SnapshotException

Description copied from interface: ICollectionExtractor

Extract the size of the collection

Returns:

Throws:

SnapshotException

getNumberOfNotNullElements

public Integer getNumberOfNotNullElements(IObject coll)
                                   throws SnapshotException

Description copied from interface: ICollectionExtractor

Returns the number of non-null elements in the collection. Requires hasExtractableContents or hasExtractableArray

Returns:

Throws:

SnapshotException

hasCollisionRatio

public boolean hasCollisionRatio()

Description copied from interface: IMapExtractor

Check if the extractor can calculate collision ratio

Returns:

getCollisionRatio

public Double getCollisionRatio(IObject collection)

Description copied from interface: IMapExtractor

Calculates the collision ratio in the collection

Returns:

Double number of elements with colliding keys / size

hasFillRatio

public boolean hasFillRatio()

Description copied from interface: ICollectionExtractor

Check if fill ratio for the collection can be calculated, i.e. if it has some predefined capacity and actual size

Returns:

getFillRatio

public Double getFillRatio(IObject coll)
                    throws SnapshotException

Description copied from interface: ICollectionExtractor

Calculate the fill ration of a collection

Returns:

Throws:

SnapshotException