Package org.eclipse.mat.internal.collectionextract

Class WrapperFieldCollectionExtractor

java.lang.Object

org.eclipse.mat.internal.collectionextract.WrapperCollectionExtractor

org.eclipse.mat.internal.collectionextract.WrapperFieldCollectionExtractor

All Implemented Interfaces:

ICollectionExtractor

public class WrapperFieldCollectionExtractor
extends WrapperCollectionExtractor

Constructor Summary

Constructors

Constructor	Description
WrapperFieldCollectionExtractor(String field, String entryfield)
WrapperFieldCollectionExtractor(String field, String entryfield, ICollectionExtractor extractor)

Method Summary

Modifier and Type	Method	Description
int[]	extractEntryIds(IObject coll)	Returns the object ids (int) for all objects which are contained in the collection
boolean	hasExtractableArray()	Return true if the collection array based and the array can be extracted from the heap dump

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

extractEntries, getCapacity, getFillRatio, getNumberOfNotNullElements, getSize, hasCapacity, hasExtractableContents, hasFillRatio, hasSize

Methods inherited from class java.lang.Object

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

Constructor Details

WrapperFieldCollectionExtractor

public WrapperFieldCollectionExtractor(String field,
 String entryfield)

WrapperFieldCollectionExtractor

public WrapperFieldCollectionExtractor(String field,
 String entryfield,
 ICollectionExtractor extractor)

Method Details

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

Specified by:

extractEntryIds in interface ICollectionExtractor

Overrides:

extractEntryIds in class WrapperCollectionExtractor

Parameters:

coll - - the collection to find the objects it holds

Returns:

an array of ints which are the object ids.

Throws:

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

See Also:

• ICollectionExtractor.hasExtractableContents()

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

Specified by:

hasExtractableArray in interface ICollectionExtractor

Overrides:

hasExtractableArray in class WrapperCollectionExtractor

Returns:

true if ICollectionExtractor.extractEntries(IObject) could be called

See Also:

• ICollectionExtractor.extractEntries(IObject)