org.eclipse.mat.internal.collectionextract

Class ConcurrentSkipListCollectionExtractor

java.lang.Object

org.eclipse.mat.internal.collectionextract.MapCollectionExtractorBase

org.eclipse.mat.internal.collectionextract.HashedMapCollectionExtractorBase

org.eclipse.mat.internal.collectionextract.ConcurrentSkipListCollectionExtractor

All Implemented Interfaces:

ICollectionExtractor, IMapExtractor

Direct Known Subclasses:

ConcurrentSkipListSetCollectionExtractor

public class ConcurrentSkipListCollectionExtractor
extends HashedMapCollectionExtractorBase

Nested Class Summary

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

IMapExtractor.EntryObject

Constructor Summary

Constructors

Constructor and Description
ConcurrentSkipListCollectionExtractor(String arrayField, 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 coll) Returns the object ids (int) for all objects which are contained in the collection
Integer	getCapacity(IObject coll) Return the capacity of the collection, if applicable
Double	getCollisionRatio(IObject coll) 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	hasCapacity() Check if the collection has capacity, e.g.
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.HashedMapCollectionExtractorBase

hasCollisionRatio

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

extractMapEntries

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcurrentSkipListCollectionExtractor

public ConcurrentSkipListCollectionExtractor(String arrayField,
                                             String keyField,
                                             String valueField)

Method Detail

hasExtractableContents

public boolean hasExtractableContents()

Description copied from interface: ICollectionExtractor

Check if the collection has extractable contents

Returns:

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

extractEntryIds

public int[] extractEntryIds(IObject coll)
                      throws SnapshotException

Description copied from interface: ICollectionExtractor

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

hasCapacity

public boolean hasCapacity()

Description copied from interface: ICollectionExtractor

Check if the collection has capacity, e.g. ArrayList

Specified by:

hasCapacity in interface ICollectionExtractor

Overrides:

hasCapacity in class MapCollectionExtractorBase

Returns:

getCapacity

public Integer getCapacity(IObject coll)
                    throws SnapshotException

Description copied from interface: ICollectionExtractor

Return the capacity of the collection, if applicable

Specified by:

getCapacity in interface ICollectionExtractor

Overrides:

getCapacity in class MapCollectionExtractorBase

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

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

Specified by:

hasFillRatio in interface ICollectionExtractor

Overrides:

hasFillRatio in class HashedMapCollectionExtractorBase

Returns:

getFillRatio

public Double getFillRatio(IObject coll)
                    throws SnapshotException

Description copied from interface: ICollectionExtractor

Calculate the fill ration of a collection

Specified by:

getFillRatio in interface ICollectionExtractor

Overrides:

getFillRatio in class HashedMapCollectionExtractorBase

Returns:

Throws:

SnapshotException

getCollisionRatio

public Double getCollisionRatio(IObject coll)
                         throws SnapshotException

Description copied from interface: IMapExtractor

Calculates the collision ratio in the collection

Specified by:

getCollisionRatio in interface IMapExtractor

Overrides:

getCollisionRatio in class HashedMapCollectionExtractorBase

Returns:

Double number of elements with colliding keys / size

Throws:

SnapshotException