org.eclipse.mat.parser.internal.snapshot

Class RetainedSizeCache

java.lang.Object

org.eclipse.mat.parser.internal.snapshot.RetainedSizeCache

All Implemented Interfaces:

IIndexReader

public class RetainedSizeCache
extends Object
implements IIndexReader

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.mat.parser.index.IIndexReader

IIndexReader.IOne2LongIndex, IIndexReader.IOne2ManyIndex, IIndexReader.IOne2ManyObjectsIndex, IIndexReader.IOne2OneIndex, IIndexReader.IOne2SizeIndex

Constructor Summary

Constructors

Constructor and Description
RetainedSizeCache(File f) File is expected to exist, and is read in the new format.
RetainedSizeCache(XSnapshotInfo snapshotInfo) Reads file i2sv2.index in new format, or file i2s.index in the old format, or creates an empty map.

Method Summary

Modifier and Type	Method and Description
void	close() Close the backing file.
void	delete() Delete the backing file.
long	get(int key)
void	put(int key, long value)
int	size() Size of the index
void	unload() Clear the caches.

Methods inherited from class java.lang.Object

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

Constructor Detail

RetainedSizeCache

public RetainedSizeCache(File f)

File is expected to exist, and is read in the new format.

Parameters:

f -

RetainedSizeCache

public RetainedSizeCache(XSnapshotInfo snapshotInfo)

Reads file i2sv2.index in new format, or file i2s.index in the old format, or creates an empty map.

Parameters:

snapshotInfo -

Method Detail

get

public long get(int key)

put

public void put(int key,
                long value)

close

public void close()

Description copied from interface: IIndexReader

Close the backing file.

Specified by:

close in interface IIndexReader

size

public int size()

Description copied from interface: IIndexReader

Size of the index

Specified by:

size in interface IIndexReader

Returns:

number of entries

unload

public void unload()
            throws IOException

Description copied from interface: IIndexReader

Clear the caches. Used when the indexes are not current in use and the memory needs to be reclaimed such as when building the dominator tree.

Specified by:

unload in interface IIndexReader

Throws:

IOException

delete

public void delete()

Description copied from interface: IIndexReader

Delete the backing file.

Specified by:

delete in interface IIndexReader