org.eclipse.mat.internal.collectionextract

Class HashedMapCollectionExtractorBase

java.lang.Object

org.eclipse.mat.internal.collectionextract.MapCollectionExtractorBase

org.eclipse.mat.internal.collectionextract.HashedMapCollectionExtractorBase

All Implemented Interfaces:

ICollectionExtractor, IMapExtractor

Direct Known Subclasses:

ConcurrentHashMapCollectionExtractor, ConcurrentSkipListCollectionExtractor, HashMapCollectionExtractor

public abstract class HashedMapCollectionExtractorBase
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
HashedMapCollectionExtractorBase(String arrayField, String keyField, String valueField)

Method Summary

Modifier and Type	Method and Description
Double	getCollisionRatio(IObject coll) Calculates the collision ratio in the collection
Double	getFillRatio(IObject coll) Calculate the fill ration of a collection
boolean	hasCollisionRatio() Check if the extractor can calculate collision ratio
boolean	hasFillRatio() Check if fill ratio for the collection can be calculated, i.e.

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

Methods inherited from interface org.eclipse.mat.inspections.collectionextract.ICollectionExtractor

extractEntries, extractEntryIds, getNumberOfNotNullElements, getSize, hasExtractableArray, hasExtractableContents, hasSize

Constructor Detail

HashedMapCollectionExtractorBase

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

Method Detail

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

hasCollisionRatio

public boolean hasCollisionRatio()

Description copied from interface: IMapExtractor

Check if the extractor can calculate collision ratio

Returns:

getCollisionRatio

public Double getCollisionRatio(IObject coll)
                         throws SnapshotException

Description copied from interface: IMapExtractor

Calculates the collision ratio in the collection

Returns:

Double number of elements with colliding keys / size

Throws:

SnapshotException