Class NullFilesCache

java.lang.Object
org.apache.commons.vfs.provider.AbstractVfsComponent
org.apache.commons.vfs.cache.AbstractFilesCache
org.apache.commons.vfs.cache.NullFilesCache
All Implemented Interfaces:
FilesCache, VfsComponent
public class NullFilesCache extends AbstractFilesCache

A FilesCache implementation.
This implementation never ever caches a single file.

Notice: if you use resolveFile(uri) multiple times with the same path, the system will always create a new instance. Changes on one instance of this file are not seen by the others.

Version:
$Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Wed, 29 Nov 2006) $
Author:
Mario Ivankovits

  • Constructor Details

    • NullFilesCache

      public NullFilesCache()

  • Method Details

    • putFile

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

    • 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)