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Java Source Code / Java Documentation » Library » Apache commons vfs 20070724 src » org.apache.commons.vfs.provider   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.apache.commons.vfs.provider.AbstractVfsComponent       org.apache.commons.vfs.provider.AbstractFileSystem All known Subclasses:   org.apache.commons.vfs.provider.url.UrlFileSystem,  org.apache.commons.vfs.provider.tar.TarFileSystem,  org.apache.commons.vfs.provider.ram.RamFileSystem,  org.apache.commons.vfs.provider.zip.ZipFileSystem,  org.apache.commons.vfs.provider.sftp.SftpFileSystem,  org.apache.commons.vfs.provider.local.LocalFileSystem,  org.apache.commons.vfs.provider.http.HttpFileSystem,  org.apache.commons.vfs.impl.VirtualFileSystem,  org.apache.commons.vfs.provider.ftp.FtpFileSystem,  org.apache.commons.vfs.provider.compressed.CompressedFileFileSystem, AbstractFileSystem abstract public class AbstractFileSystem extends AbstractVfsComponent implements FileSystem(Code) A partial org.apache.commons.vfs.FileSystem implementation. author:    Adam Murdoch version:    $Revision: 520070 $ $Date: 2007-03-19 12:47:13 -0700 (Mon, 19 Mar 2007) $ Constructor Summary protected   AbstractFileSystem(FileName rootName, FileObject parentLayer, FileSystemOptions fileSystemOptions)      Method Summary abstract protected  void addCapabilities(Collection caps)      Adds the capabilities of this file system. public  void addJunction(String junctionPoint, FileObject targetFile)      Adds a junction to this file system. public  void addListener(FileObject file, FileListener listener)      Adds a listener on a file in this file system. public  void close()      Closes this component. public  void closeCommunicationLink()      abstract protected  FileObject createFile(FileName name)      Creates a file object. protected  FileObject decorateFileObject(FileObject file)      protected  void doCloseCommunicationLink()      protected  File doReplicateFile(FileObject file, FileSelector selector)      Creates a temporary local copy of a file and its descendents.  void fileObjectDestroyed(FileObject fileObject)       void fileObjectHanded(FileObject fileObject)      public  void fireFileChanged(FileObject file)      Fires a file changed event. public  void fireFileCreated(FileObject file)      Fires a file create event. public  void fireFileDeleted(FileObject file)      Fires a file delete event.  void freeResources()      public  Object getAttribute(String attrName)      Retrieves the attribute with the specified name.  FileSystemKey getCacheKey()      protected  FileObject getFileFromCache(FileName name)      Returns a cached file. public  FileSystemManager getFileSystemManager()      public  FileSystemOptions getFileSystemOptions()      public  double getLastModTimeAccuracy()      Returns the accuracy of the last modification time ms 0 perfectly accurate, >0 might be off by this value e.g. public  FileObject getParentLayer()      Returns the parent layer if this is a layered file system. public  FileObject getRoot()      Returns the root file of this file system. public  FileName getRootName()      Returns the name of the root of this file system. public  boolean hasCapability(Capability capability)      Determines if this file system has a particular capability. public  void init()      Initialises this component. public  boolean isOpen()      public  boolean isReleaseable()      protected  void notifyAllStreamsClosed()      will be called after all file-objects closed their streams. protected  void putFileToCache(FileObject file)      Adds a file object to the cache. protected  void removeFileFromCache(FileName name)      remove a cached file. public  void removeJunction(String junctionPoint)      Removes a junction from this file system. public  void removeListener(FileObject file, FileListener listener)      Removes a listener from a file in this file system. public  File replicateFile(FileObject file, FileSelector selector)      Creates a temporary local copy of a file and its descendents. public  FileObject resolveFile(String nameStr)      Finds a file in this file system. public synchronized  FileObject resolveFile(FileName name)      Finds a file in this file system. public  void setAttribute(String attrName, Object value)      Sets the attribute with the specified name.  void setCacheKey(FileSystemKey cacheKey)       void streamClosed()       void streamOpened()      Constructor Detail AbstractFileSystem protected AbstractFileSystem(FileName rootName, FileObject parentLayer, FileSystemOptions fileSystemOptions)(Code) Method Detail addCapabilities abstract protected void addCapabilities(Collection caps)(Code) Adds the capabilities of this file system. addJunction public void addJunction(String junctionPoint, FileObject targetFile) throws FileSystemException(Code) Adds a junction to this file system. addListener public void addListener(FileObject file, FileListener listener)(Code) Adds a listener on a file in this file system. close public void close()(Code) Closes this component. closeCommunicationLink public void closeCommunicationLink()(Code) Close the underlaying link used to access the files createFile abstract protected FileObject createFile(FileName name) throws Exception(Code) Creates a file object. This method is called only if the requested file is not cached. decorateFileObject protected FileObject decorateFileObject(FileObject file) throws FileSystemException(Code) doCloseCommunicationLink protected void doCloseCommunicationLink()(Code) Close the underlaying link used to access the files doReplicateFile protected File doReplicateFile(FileObject file, FileSelector selector) throws Exception(Code) Creates a temporary local copy of a file and its descendents. fileObjectDestroyed void fileObjectDestroyed(FileObject fileObject)(Code) fileObjectHanded void fileObjectHanded(FileObject fileObject)(Code) fireFileChanged public void fireFileChanged(FileObject file)(Code) Fires a file changed event. This will only happen if you monitor the file using org.apache.commons.vfs.FileMonitor . fireFileCreated public void fireFileCreated(FileObject file)(Code) Fires a file create event. fireFileDeleted public void fireFileDeleted(FileObject file)(Code) Fires a file delete event. freeResources void freeResources()(Code) getAttribute public Object getAttribute(String attrName) throws FileSystemException(Code) Retrieves the attribute with the specified name. The default implementation simply throws an exception. getCacheKey FileSystemKey getCacheKey()(Code) getFileFromCache protected FileObject getFileFromCache(FileName name)(Code) Returns a cached file. getFileSystemManager public FileSystemManager getFileSystemManager()(Code) Return the FileSystemManager used to instantiate this filesystem getFileSystemOptions public FileSystemOptions getFileSystemOptions()(Code) Return the FileSystemOptions used to instantiate this filesystem getLastModTimeAccuracy public double getLastModTimeAccuracy()(Code) Returns the accuracy of the last modification time ms 0 perfectly accurate, >0 might be off by this value e.g. sftp 1000ms getParentLayer public FileObject getParentLayer() throws FileSystemException(Code) Returns the parent layer if this is a layered file system. getRoot public FileObject getRoot() throws FileSystemException(Code) Returns the root file of this file system. getRootName public FileName getRootName()(Code) Returns the name of the root of this file system. hasCapability public boolean hasCapability(Capability capability)(Code) Determines if this file system has a particular capability. init public void init() throws FileSystemException(Code) Initialises this component. isOpen public boolean isOpen()(Code) check if this filesystem has open streams isReleaseable public boolean isReleaseable()(Code) returns true if no file is using this filesystem notifyAllStreamsClosed protected void notifyAllStreamsClosed()(Code) will be called after all file-objects closed their streams. putFileToCache protected void putFileToCache(FileObject file)(Code) Adds a file object to the cache. removeFileFromCache protected void removeFileFromCache(FileName name)(Code) remove a cached file. removeJunction public void removeJunction(String junctionPoint) throws FileSystemException(Code) Removes a junction from this file system. removeListener public void removeListener(FileObject file, FileListener listener)(Code) Removes a listener from a file in this file system. replicateFile public File replicateFile(FileObject file, FileSelector selector) throws FileSystemException(Code) Creates a temporary local copy of a file and its descendents. resolveFile public FileObject resolveFile(String nameStr) throws FileSystemException(Code) Finds a file in this file system. resolveFile public synchronized FileObject resolveFile(FileName name) throws FileSystemException(Code) Finds a file in this file system. setAttribute public void setAttribute(String attrName, Object value) throws FileSystemException(Code) Sets the attribute with the specified name. The default implementation simply throws an exception. setCacheKey void setCacheKey(FileSystemKey cacheKey)(Code) streamClosed void streamClosed()(Code) streamOpened void streamOpened()(Code) Methods inherited from org.apache.commons.vfs.provider.AbstractVfsComponent public void close()(Code)(Java Doc) final protected VfsComponentContext getContext()(Code)(Java Doc) final protected Log getLogger()(Code)(Java Doc) public void init() throws FileSystemException(Code)(Java Doc) final public void setContext(VfsComponentContext context)(Code)(Java Doc) final public void setLogger(Log log)(Code)(Java Doc) Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)