Package org.apache.commons.vfs.cache
Class SoftRefFilesCache
java.lang.Object
org.apache.commons.vfs.provider.AbstractVfsComponent
org.apache.commons.vfs.cache.AbstractFilesCache
org.apache.commons.vfs.cache.SoftRefFilesCache
- All Implemented Interfaces:
FilesCache
,VfsComponent
- Direct Known Subclasses:
WeakRefFilesCache
This implementation caches every file as long as it is strongly reachable by
the java vm. As soon as the vm needs memory - every softly reachable file
will be discarded.
- Version:
- $Revision: 484648 $ $Date: 2005-09-30 09:02:41 +0200 (Fr, 30 Sep 2005) $
- Author:
- Mario Ivankovits
- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
clear
(FileSystem filesystem) purge the entries corresponding to the filesystemvoid
close()
Closes the provider.protected Reference
createReference
(FileObject file, ReferenceQueue refqueue) getFile
(FileSystem filesystem, FileName name) retrieve a file from the cache by its nameprotected Map
getOrCreateFilesystemCache
(FileSystem filesystem) void
putFile
(FileObject file) add a fileobject to the cachevoid
removeFile
(FileSystem filesystem, FileName name) removes a file from cachevoid
touchFile
(FileObject file) Methods inherited from class org.apache.commons.vfs.provider.AbstractVfsComponent
getContext, getLogger, init, setContext, setLogger
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Constructor Details
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SoftRefFilesCache
public SoftRefFilesCache()
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Method Details
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putFile
Description copied from interface:FilesCache
add a fileobject to the cache- Parameters:
file
- the file
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createReference
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getFile
Description copied from interface:FilesCache
retrieve a file from the cache by its name- Parameters:
name
- the name- Returns:
- the fileobject or null if file is not cached
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clear
Description copied from interface:FilesCache
purge the entries corresponding to the filesystem -
close
public void close()Description copied from class:AbstractVfsComponent
Closes the provider. This implementation does nothing.- Specified by:
close
in interfaceFilesCache
- Specified by:
close
in interfaceVfsComponent
- Overrides:
close
in classAbstractVfsComponent
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removeFile
Description copied from interface:FilesCache
removes a file from cache- Parameters:
filesystem
- filesystemname
- filename
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touchFile
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getOrCreateFilesystemCache
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