Package org.eclipse.mat.internal.collectionextract

Class WrapperFieldMapExtractor

java.lang.Object

org.eclipse.mat.internal.collectionextract.WrapperCollectionExtractor

org.eclipse.mat.internal.collectionextract.WrapperMapExtractor

org.eclipse.mat.internal.collectionextract.WrapperFieldMapExtractor

All Implemented Interfaces:

ICollectionExtractor, IMapExtractor

public class WrapperFieldMapExtractor
extends WrapperMapExtractor

Nested Class Summary

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

IMapExtractor.EntryObject

Constructor Summary

Constructors

Constructor	Description
WrapperFieldMapExtractor(String field, String keyfield, String valuefield)
WrapperFieldMapExtractor(String field, String keyfield, String valuefield, 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
Iterator<Map.Entry<IObject,IObject>>	extractMapEntries(IObject coll)	Extracts the contents of a map (i.e.

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

getCollisionRatio, hasCollisionRatio

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

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

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

Constructor Details

WrapperFieldMapExtractor

public WrapperFieldMapExtractor(String field,
 String keyfield,
 String valuefield)

WrapperFieldMapExtractor

public WrapperFieldMapExtractor(String field,
 String keyfield,
 String valuefield,
 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()

extractMapEntries

public Iterator<Map.Entry<IObject,IObject>> extractMapEntries(IObject coll)

Description copied from interface: IMapExtractor

Extracts the contents of a map (i.e. an IObject representing a Map) and provides an Iterator over them

Specified by:

extractMapEntries in interface IMapExtractor

Overrides:

extractMapEntries in class WrapperMapExtractor

Parameters:

coll - - the map to extract contents from

Returns:

an Iterator over the entries. If the original Map had an Entry object, the content of the iterator would usually be EntryObject