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 Description HashedMapCollectionExtractorBase(java.lang.String arrayField, java.lang.String keyField, java.lang.String valueField)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Double
getCollisionRatio(IObject coll)
Calculates the collision ratio in the collection.java.lang.Double
getFillRatio(IObject coll)
Calculate the fill ratio of a collectionboolean
hasCollisionRatio()
Check if the extractor can calculate collision ratioboolean
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
-
-
-
-
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:
- true if
ICollectionExtractor.getFillRatio(IObject)
could be called - See Also:
ICollectionExtractor.getFillRatio(IObject)
-
getFillRatio
public java.lang.Double getFillRatio(IObject coll) throws SnapshotException
Description copied from interface:ICollectionExtractor
Calculate the fill ratio of a collection- Parameters:
coll
- - the collection to find the fill ratio of- Returns:
- the fill ratio, between 0.0 and 1.0, or null if unavailable
- Throws:
SnapshotException
- if there is a problem retrieving data from the snapshot- See Also:
ICollectionExtractor.hasFillRatio()
-
hasCollisionRatio
public boolean hasCollisionRatio()
Description copied from interface:IMapExtractor
Check if the extractor can calculate collision ratio- Returns:
- true if @
IMapExtractor.getCollisionRatio(IObject)
could be called - See Also:
IMapExtractor.getCollisionRatio(IObject)
-
getCollisionRatio
public java.lang.Double getCollisionRatio(IObject coll) throws SnapshotException
Description copied from interface:IMapExtractor
Calculates the collision ratio in the collection. Could be an estimate.- Parameters:
coll
- - the collection to calculate the collision ratio of- Returns:
- Double number of elements with colliding keys / size
- Throws:
SnapshotException
- See Also:
IMapExtractor.hasCollisionRatio()
-
-