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
public class SoftRefFilesCache extends AbstractFilesCache
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:

  • Constructor Details

    • SoftRefFilesCache

      public SoftRefFilesCache()

  • Method Details

    • putFile

      public void putFile(FileObject file)
      Description copied from interface: FilesCache
      add a fileobject to the cache
      Parameters:
      file - the file

    • createReference

      protected Reference createReference(FileObject file, ReferenceQueue refqueue)

    • getFile

      public FileObject getFile(FileSystem filesystem, FileName name)
      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

    • clear

      public void clear(FileSystem filesystem)
      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 interface FilesCache
      Specified by:
      close in interface VfsComponent
      Overrides:
      close in class AbstractVfsComponent

    • removeFile

      public void removeFile(FileSystem filesystem, FileName name)
      Description copied from interface: FilesCache
      removes a file from cache
      Parameters:
      filesystem - filesystem
      name - filename

    • touchFile

      public void touchFile(FileObject file)

    • getOrCreateFilesystemCache

      protected Map getOrCreateFilesystemCache(FileSystem filesystem)