[jboss-dev-forums] [Design of POJO Server] - Re: VFS and JBossAS initialization

[alesj]

"adrian at jboss.org" wrote : 
  | Is a vfs classloader policy a vfs cache or can a vfs classloader policy 
  | have a vfs cache?
  | 
I didn't want to change current impl at the following code:

  |    /**
  |     * Get virtual file for uri.
  |     *
  |     * @param uri the uri
  |     * @return virtual file for uri
  |     * @throws Exception for any error
  |     */
  |    protected VirtualFile getVirtualFile(URI uri) throws Exception
  |    {
  |       return VFS.getRoot(uri);
  |    }
  | 
instead doing an override that uses the newly added caching VirtualFile instance re-usability:

  |    protected VirtualFile getVirtualFile(URI uri) throws Exception
  |    {
  |       return VFS.getCachedFile(uri);
  |    }
  | 

Perhaps I can use VFS::getCachedFile directly in the original impl?
Hence no need for the additional class.

VFS::getCachedFile:

  |    /**
  |     * Get cached file.
  |     *
  |     * If VFSContext matching the rootURL parameter is cached
  |     * this method will return cached virtual file
  |     * else it will use VFS::getRoot(rootURL).
  |     *
  |     * @param rootURL the root url
  |     * @return the cached virtual file
  |     * @throws IOException for any error
  |     * @throws IllegalArgumentException if the rootURL is null
  |     */
  |    public static VirtualFile getCachedFile(URL rootURL) throws IOException
  |    {
  |       VFSCache cache = VFSCacheFactory.getInstance();
  |       return cache.getFile(rootURL);
  |    }
  | 

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