Package org.eclipse.mat.internal.collectionextract

Class FieldSizeArrayCollectionExtractor

java.lang.Object

org.eclipse.mat.internal.collectionextract.FieldArrayCollectionExtractor

org.eclipse.mat.internal.collectionextract.FieldSizeArrayCollectionExtractor

All Implemented Interfaces:

ICollectionExtractor

Direct Known Subclasses:

ArrayListSubListCollectionExtractor, FieldSizeArrayMapExtractor, FieldSizedCapacityCollectionExtractor, IdentityHashMapCollectionExtractor, RegularEnumSetExtractor

public class FieldSizeArrayCollectionExtractor
extends FieldArrayCollectionExtractor

Constructor Summary

Constructors

Constructor	Description
FieldSizeArrayCollectionExtractor(String sizeField, String arrayField)

Method Summary

Modifier and Type	Method	Description
Integer	getSize(IObject coll)	Extract the size of the collection.
boolean	hasSize()	Check if the size of the collection can be extracted.

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

extractEntries, extractEntryIds, getCapacity, getFillRatio, getNumberOfNotNullElements, hasCapacity, hasExtractableArray, hasExtractableContents, hasFillRatio

Methods inherited from class java.lang.Object

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

Constructor Details

FieldSizeArrayCollectionExtractor

public FieldSizeArrayCollectionExtractor(String sizeField,
 String arrayField)

Method Details

hasSize

public boolean hasSize()

Description copied from interface: ICollectionExtractor

Check if the size of the collection can be extracted.

Specified by:

hasSize in interface ICollectionExtractor

Overrides:

hasSize in class FieldArrayCollectionExtractor

Returns:

true if ICollectionExtractor.getSize(IObject) could be called

See Also:

• ICollectionExtractor.getSize(IObject)

getSize

public Integer getSize(IObject coll)
                throws SnapshotException

Description copied from interface: ICollectionExtractor

Extract the size of the collection.

Specified by:

getSize in interface ICollectionExtractor

Overrides:

getSize in class FieldArrayCollectionExtractor

Parameters:

coll - - the collection to find the size of

Returns:

the size, or null if not available

Throws:

SnapshotException - if there is a problem retrieving data from the snapshot

See Also:

• ICollectionExtractor.hasSize()