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

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

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 Details
- 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 Details
- 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