org.h2.util

Class TempFileDeleter

java.lang.Object

org.h2.util.TempFileDeleter

public class TempFileDeleter
extends java.lang.Object

This class deletes temporary files when they are not used any longer.

Method Summary

Modifier and Type	Method and Description
java.lang.ref.Reference<?>	addFile(java.lang.Object resource, java.lang.Object monitor) Add a file or a closeable to the list of temporary objects to delete.
void	deleteAll() Delete all registered temp resources.
void	deleteFile(java.lang.ref.Reference<?> ref, java.lang.Object resource) Delete the given file or close the closeable now.
void	deleteUnused() Delete all unused resources now.
static TempFileDeleter	getInstance()
void	stopAutoDelete(java.lang.ref.Reference<?> ref, java.lang.Object resource) This method is called if a file should no longer be deleted or a resource should no longer be closed if the object is garbage collected.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static TempFileDeleter getInstance()

addFile

public java.lang.ref.Reference<?> addFile(java.lang.Object resource,
                                          java.lang.Object monitor)

Add a file or a closeable to the list of temporary objects to delete. The file is deleted once the file object is garbage collected.

Parameters:

resource - the file name or the closeable

monitor - the object to monitor

Returns:

the reference that can be used to stop deleting the file or closing the closeable

deleteFile

public void deleteFile(java.lang.ref.Reference<?> ref,
                       java.lang.Object resource)

Delete the given file or close the closeable now. This will remove the reference from the list.

Parameters:

ref - the reference as returned by addFile

resource - the file name or closeable

deleteAll

public void deleteAll()

Delete all registered temp resources.

deleteUnused

public void deleteUnused()

Delete all unused resources now.

stopAutoDelete

public void stopAutoDelete(java.lang.ref.Reference<?> ref,
                           java.lang.Object resource)

This method is called if a file should no longer be deleted or a resource should no longer be closed if the object is garbage collected.

Parameters:

ref - the reference as returned by addFile

resource - file name or closeable