java.lang.Object
- org.apache.commons.vfs.provider.AbstractFileObject

All Implemented Interfaces:

FileObject

Direct Known Subclasses:

CompressedFileFileObject, DelegateFileObject, FtpFileObject, HttpFileObject, LocalFile, RamFileObject, SftpFileObject, TarFileObject, UrlFileObject, ZipFileObject
```
public abstract class AbstractFileObject
extends java.lang.Object
implements FileObject
```
A partial file object implementation.

Version:

$Revision: 484648 $ $Date: 2006-12-08 17:18:36 +0100 (Fri, 08 Dec 2006) $

Author:

Adam Murdoch, Gary D. Gregory

Constructor Summary

Constructors
Modifier Constructor Description

protected AbstractFileObject(FileName name, AbstractFileSystem fs)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`canRenameTo(FileObject newfile)`	Queries the object if a simple rename to the filename of `newfile` is possible.
`protected void`	`childrenChanged()`	Deprecated. use `childrenChanged(FileName,FileType)`
`protected void`	`childrenChanged(FileName childName, FileType newType)`	Notifies the file that its children have changed.
`void`	`close()`	Closes this file, and its content.
`void`	`copyFrom(FileObject file, FileSelector selector)`	Copies another file to this file.
`void`	`createFile()`	Creates this file, if it does not exist.
`void`	`createFolder()`	Creates this folder, if it does not exist.
`boolean`	`delete()`	Deletes this file.
`int`	`delete(FileSelector selector)`	Deletes this file, and all children.
`protected void`	`doAttach()`	Attaches this file object to its file resource.
`protected void`	`doCreateFolder()`	Creates this file as a folder.
`protected void`	`doDelete()`	Deletes the file.
`protected void`	`doDetach()`	Detaches this file object from its file resource.
`protected java.util.Map`	`doGetAttributes()`	Returns the attributes of this file.
`protected java.security.cert.Certificate[]`	`doGetCertificates()`	Returns the certificates used to sign this file.
`protected abstract long`	`doGetContentSize()`	Returns the size of the file content (in bytes).
`protected abstract java.io.InputStream`	`doGetInputStream()`	Creates an input stream to read the file content from.
`protected long`	`doGetLastModifiedTime()`	Returns the last modified time of this file.
`protected java.io.OutputStream`	`doGetOutputStream(boolean bAppend)`	Creates an output stream to write the file content to.
`protected RandomAccessContent`	`doGetRandomAccessContent(RandomAccessMode mode)`	Creates access to the file for random i/o.
`protected abstract FileType`	`doGetType()`	Determines the type of this file.
`protected boolean`	`doIsHidden()`	Determines if this file is hidden.
`protected boolean`	`doIsReadable()`	Determines if this file can be read.
`protected boolean`	`doIsSameFile(FileObject destFile)`	Checks if this fileObject is the same file as `destFile` just with a different name. E.g.
`protected boolean`	`doIsWriteable()`	Determines if this file can be written to.
`protected abstract java.lang.String[]`	`doListChildren()`	Lists the children of this file.
`protected FileObject[]`	`doListChildrenResolved()`	Lists the children of this file.
`protected void`	`doRename(FileObject newfile)`	Renames the file.
`protected void`	`doSetAttribute(java.lang.String atttrName, java.lang.Object value)`	Sets an attribute of this file.
`protected void`	`doSetLastModifiedTime(long modtime)`	Sets the last modified time of this file.
`protected void`	`endOutput()`	Called when the ouput stream for this file is closed.
`boolean`	`exists()`	Determines if the file exists.
`protected void`	`finalize()`
`FileObject[]`	`findFiles(FileSelector selector)`	Finds the set of matching descendents of this file, in depthwise order.
`void`	`findFiles(FileSelector selector, boolean depthwise, java.util.List selected)`	Traverses the descendents of this file, and builds a list of selected files.
`FileObject`	`getChild(java.lang.String name)`	Returns a child of this file.
`FileObject[]`	`getChildren()`	Returns the children of the file.
`FileContent`	`getContent()`	Returns the file's content.
`protected FileContentInfoFactory`	`getFileContentInfoFactory()`	create the filecontentinfo implementation
`FileOperations`	`getFileOperations()`
`FileSystem`	`getFileSystem()`	Returns the file system this file belongs to.
`java.io.InputStream`	`getInputStream()`	Returns an input stream to use to read the content of the file.
`FileName`	`getName()`	Returns the name of the file.
`java.io.OutputStream`	`getOutputStream()`	Prepares this file for writing.
`java.io.OutputStream`	`getOutputStream(boolean bAppend)`	Prepares this file for writing.
`FileObject`	`getParent()`	Returns the parent of the file.
`RandomAccessContent`	`getRandomAccessContent(RandomAccessMode mode)`	Returns an input/output stream to use to read and write the content of the file in and random manner.
`FileType`	`getType()`	Returns the file's type.
`java.net.URL`	`getURL()`	Returns a URL representation of the file.
`protected void`	`handleChanged()`	Called when this file is changed. This will only happen if you monitor the file using `FileMonitor`.
`protected void`	`handleCreate(FileType newType)`	Called when this file is created.
`protected void`	`handleDelete()`	Called when this file is deleted.
`void`	`holdObject(java.lang.Object strongRef)`	This method is meant to add a object where this object holds a strong reference then.
`protected void`	`injectType(FileType fileType)`
`boolean`	`isAttached()`	Check if the internal state is "attached"
`boolean`	`isContentOpen()`	Check if the content stream is open
`boolean`	`isHidden()`	Determines if this file can be read.
`boolean`	`isReadable()`	Determines if this file can be read.
`protected boolean`	`isSameFile(FileObject destFile)`	Checks if this fileObject is the same file as `destFile` just with a different name. E.g.
`boolean`	`isWriteable()`	Determines if this file can be written to.
`void`	`moveTo(FileObject destFile)`	Moves (rename) the file to another one
`protected void`	`notifyAllStreamsClosed()`	will be called after this file-object closed all its streams.
`protected void`	`onChange()`	Called when the type or content of this file changes.
`protected void`	`onChildrenChanged(FileName child, FileType newType)`	Called when the children of this file change.
`void`	`refresh()`	This will prepare the fileObject to get resynchronized with the underlaying filesystem if required
`FileObject`	`resolveFile(java.lang.String path)`	Finds a file, relative to this file.
`FileObject`	`resolveFile(java.lang.String name, NameScope scope)`	Returns a child by name.
`java.lang.String`	`toString()`	Returns the URI of the file.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - AbstractFileObject
```
protected AbstractFileObject(FileName name,
                             AbstractFileSystem fs)
```
- Method Detail
  - doAttach
```
protected void doAttach()
                 throws java.lang.Exception
```
    Attaches this file object to its file resource. This method is called before any of the doBlah() or onBlah() methods. Sub-classes can use this method to perform lazy initialisation.
    This implementation does nothing.
    
    Throws:
    
    java.lang.Exception
  - doDetach
```
protected void doDetach()
                 throws java.lang.Exception
```
    Detaches this file object from its file resource.
    
    Called when this file is closed. Note that the file object may be reused later, so should be able to be reattached.
    This implementation does nothing.
    
    Throws:
    
    java.lang.Exception
  - doGetType
```
protected abstract FileType doGetType()
                               throws java.lang.Exception
```
    Determines the type of this file. Must not return null. The return value of this method is cached, so the implementation can be expensive.
    
    Throws:
    
    java.lang.Exception
  - doIsHidden
```
protected boolean doIsHidden()
                      throws java.lang.Exception
```
    Determines if this file is hidden. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation always returns false.
    
    Throws:
    
    java.lang.Exception
  - doIsReadable
```
protected boolean doIsReadable()
                        throws java.lang.Exception
```
    Determines if this file can be read. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation always returns true.
    
    Throws:
    
    java.lang.Exception
  - doIsWriteable
```
protected boolean doIsWriteable()
                         throws java.lang.Exception
```
    Determines if this file can be written to. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation always returns true.
    
    Throws:
    
    java.lang.Exception
  - doListChildren
```
protected abstract java.lang.String[] doListChildren()
                                              throws java.lang.Exception
```
    Lists the children of this file. Is only called if doGetType() returns FileType.FOLDER. The return value of this method is cached, so the implementation can be expensive.
    
    Throws:
    
    java.lang.Exception
  - doListChildrenResolved
```
protected FileObject[] doListChildrenResolved()
                                       throws java.lang.Exception
```
    Lists the children of this file. Is only called if doGetType() returns FileType.FOLDER. The return value of this method is cached, so the implementation can be expensive.
    Other than doListChildren you could return FileObject's to e.g. reinitialize the type of the file.
    (Introduced for Webdav: "permission denied on resource" during getType())
    
    Throws:
    
    java.lang.Exception
  - doDelete
```
protected void doDelete()
                 throws java.lang.Exception
```
    Deletes the file. Is only called when:
    
    doGetType() does not return FileType.IMAGINARY.
    doIsWriteable() returns true.
    This file has no children, if a folder.
    
    This implementation throws an exception.
    Throws:
    
    java.lang.Exception
  - doRename
```
protected void doRename(FileObject newfile)
                 throws java.lang.Exception
```
    Renames the file. Is only called when:
    
    doIsWriteable() returns true.
    
    This implementation throws an exception.
    Throws:
    
    java.lang.Exception
  - doCreateFolder
```
protected void doCreateFolder()
                       throws java.lang.Exception
```
    Creates this file as a folder. Is only called when:
    
    doGetType() returns FileType.IMAGINARY.
    The parent folder exists and is writeable, or this file is the root of the file system.
    
    This implementation throws an exception.
    Throws:
    
    java.lang.Exception
  - onChildrenChanged
```
protected void onChildrenChanged(FileName child,
                                 FileType newType)
                          throws java.lang.Exception
```
    Called when the children of this file change. Allows subclasses to refresh any cached information about the children of this file.
    This implementation does nothing.
    
    Throws:
    
    java.lang.Exception
  - onChange
```
protected void onChange()
                 throws java.lang.Exception
```
    Called when the type or content of this file changes.
    This implementation does nothing.
    
    Throws:
    
    java.lang.Exception
  - doGetLastModifiedTime
```
protected long doGetLastModifiedTime()
                              throws java.lang.Exception
```
    Returns the last modified time of this file. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation throws an exception.
    
    Throws:
    
    java.lang.Exception
  - doSetLastModifiedTime
```
protected void doSetLastModifiedTime(long modtime)
                              throws java.lang.Exception
```
    Sets the last modified time of this file. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation throws an exception.
    
    Throws:
    
    java.lang.Exception
  - doGetAttributes
```
protected java.util.Map doGetAttributes()
                                 throws java.lang.Exception
```
    Returns the attributes of this file. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation always returns an empty map.
    
    Throws:
    
    java.lang.Exception
  - doSetAttribute
```
protected void doSetAttribute(java.lang.String atttrName,
                              java.lang.Object value)
                       throws java.lang.Exception
```
    Sets an attribute of this file. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation throws an exception.
    
    Throws:
    
    java.lang.Exception
  - doGetCertificates
```
protected java.security.cert.Certificate[] doGetCertificates()
                                                      throws java.lang.Exception
```
    Returns the certificates used to sign this file. Is only called if doGetType() does not return FileType.IMAGINARY.
    This implementation always returns null.
    
    Throws:
    
    java.lang.Exception
  - doGetContentSize
```
protected abstract long doGetContentSize()
                                  throws java.lang.Exception
```
    Returns the size of the file content (in bytes). Is only called if doGetType() returns FileType.FILE.
    
    Throws:
    
    java.lang.Exception
  - doGetInputStream
```
protected abstract java.io.InputStream doGetInputStream()
                                                 throws java.lang.Exception
```
    Creates an input stream to read the file content from. Is only called if doGetType() returns FileType.FILE.
    
    It is guaranteed that there are no open output streams for this file when this method is called.
    
    The returned stream does not have to be buffered.
    
    Throws:
    
    java.lang.Exception
  - doGetRandomAccessContent
```
protected RandomAccessContent doGetRandomAccessContent(RandomAccessMode mode)
                                                throws java.lang.Exception
```
    Creates access to the file for random i/o. Is only called if doGetType() returns FileType.FILE.
    
    It is guaranteed that there are no open output streams for this file when this method is called.
    
    Throws:
    
    java.lang.Exception
  - doGetOutputStream
```
protected java.io.OutputStream doGetOutputStream(boolean bAppend)
                                          throws java.lang.Exception
```
    Creates an output stream to write the file content to. Is only called if:
    
    doIsWriteable() returns true.
    doGetType() returns FileType.FILE, or doGetType() returns FileType.IMAGINARY, and the file's parent exists and is a folder.
    
    It is guaranteed that there are no open stream (input or output) for this file when this method is called.
    
    The returned stream does not have to be buffered.
    This implementation throws an exception.
    Throws:
    
    java.lang.Exception
  - toString
```
public java.lang.String toString()
```
    Returns the URI of the file.
    
    Overrides:
    
    toString in class java.lang.Object
  - getName
```
public FileName getName()
```
    Returns the name of the file.
    
    Specified by:
    
    getName in interface FileObject
  - getFileSystem
```
public FileSystem getFileSystem()
```
    Returns the file system this file belongs to.
    
    Specified by:
    
    getFileSystem in interface FileObject
    
    Returns:
    
    The file system.
  - getURL
```
public java.net.URL getURL()
                    throws FileSystemException
```
    Returns a URL representation of the file.
    
    Specified by:
    
    getURL in interface FileObject
    
    Throws:
    
    FileSystemException
  - exists
```
public boolean exists()
               throws FileSystemException
```
    Determines if the file exists.
    
    Specified by:
    
    exists in interface FileObject
    
    Returns:
    
    true if this file exists, false if not.
    
    Throws:
    
    FileSystemException - On error determining if this file exists.
  - getType
```
public FileType getType()
                 throws FileSystemException
```
    Returns the file's type.
    
    Specified by:
    
    getType in interface FileObject
    
    Returns:
    
    One of the FileType constants. Never returns null.
    
    Throws:
    
    FileSystemException - On error determining the file's type.
  - isHidden
```
public boolean isHidden()
                 throws FileSystemException
```
    Determines if this file can be read.
    
    Specified by:
    
    isHidden in interface FileObject
    
    Returns:
    
    true if this file is hidden, false if not.
    
    Throws:
    
    FileSystemException - On error determining if this file exists.
  - isReadable
```
public boolean isReadable()
                   throws FileSystemException
```
    Determines if this file can be read.
    
    Specified by:
    
    isReadable in interface FileObject
    
    Returns:
    
    true if this file is readable, false if not.
    
    Throws:
    
    FileSystemException - On error determining if this file exists.
  - isWriteable
```
public boolean isWriteable()
                    throws FileSystemException
```
    Determines if this file can be written to.
    
    Specified by:
    
    isWriteable in interface FileObject
    
    Returns:
    
    true if this file is writeable, false if not.
    
    Throws:
    
    FileSystemException - On error determining if this file exists.
  - getParent
```
public FileObject getParent()
                     throws FileSystemException
```
    Returns the parent of the file.
    
    Specified by:
    
    getParent in interface FileObject
    
    Returns:
    
    The folder that contains this file. Returns null if this file is the root of a file system.
    
    Throws:
    
    FileSystemException - On error finding the file's parent.
  - getChildren
```
public FileObject[] getChildren()
                         throws FileSystemException
```
    Returns the children of the file.
    
    Specified by:
    
    getChildren in interface FileObject
    
    Returns:
    
    An array containing the children of this file. The array is unordered. If the file does not have any children, a zero-length array is returned. This method never returns null.
    
    Throws:
    
    FileSystemException - If this file does not exist, or is not a folder, or on error listing this file's children.
  - getChild
```
public FileObject getChild(java.lang.String name)
                    throws FileSystemException
```
    Returns a child of this file.
    
    Specified by:
    
    getChild in interface FileObject
    
    Parameters:
    
    name - The name of the child.
    
    Returns:
    
    The child, or null if there is no such child.
    
    Throws:
    
    FileSystemException - If this file does not exist, or is not a folder, or on error determining this file's children.
  - resolveFile
```
public FileObject resolveFile(java.lang.String name,
                              NameScope scope)
                       throws FileSystemException
```
    Returns a child by name.
    
    Specified by:
    
    resolveFile in interface FileObject
    
    Parameters:
    
    name - The name to resolve.
    
    Returns:
    
    The file.
    
    Throws:
    
    FileSystemException - On error parsing the path, or on error finding the file.
  - resolveFile
```
public FileObject resolveFile(java.lang.String path)
                       throws FileSystemException
```
    Finds a file, relative to this file.
    
    Specified by:
    
    resolveFile in interface FileObject
    
    Parameters:
    
    path - The path of the file to locate. Can either be a relative path, which is resolved relative to this file, or an absolute path, which is resolved relative to the file system that contains this file.
    
    Returns:
    
    The file.
    
    Throws:
    
    FileSystemException - On error parsing the path, or on error finding the file.
  - delete
```
public boolean delete()
               throws FileSystemException
```
    Deletes this file.
    
    Specified by:
    
    delete in interface FileObject
    
    Returns:
    
    true if this object has been deleted
    
    Throws:
    
    FileSystemException - If this file is a non-empty folder, or if this file is read-only, or on error deleteing this file.
  - delete
```
public int delete(FileSelector selector)
           throws FileSystemException
```
    Deletes this file, and all children.
    
    Specified by:
    
    delete in interface FileObject
    
    Parameters:
    
    selector - The selector to use to select which files to delete.
    
    Returns:
    
    the number of deleted files
    
    Throws:
    
    FileSystemException - If this file or one of its descendents is read-only, or on error deleting this file or one of its descendents.
  - createFile
```
public void createFile()
                throws FileSystemException
```
    Creates this file, if it does not exist.
    
    Specified by:
    
    createFile in interface FileObject
    
    Throws:
    
    FileSystemException - If the file already exists with the wrong type, or the parent folder is read-only, or on error creating this file or one of its ancestors.
  - createFolder
```
public void createFolder()
                  throws FileSystemException
```
    Creates this folder, if it does not exist. Also creates any ancestor files which do not exist.
    
    Specified by:
    
    createFolder in interface FileObject
    
    Throws:
    
    FileSystemException - If the folder already exists with the wrong type, or the parent folder is read-only, or on error creating this folder or one of its ancestors.
  - copyFrom
```
public void copyFrom(FileObject file,
                     FileSelector selector)
              throws FileSystemException
```
    Copies another file to this file.
    
    Specified by:
    
    copyFrom in interface FileObject
    
    Parameters:
    
    file - The source file to copy.
    
    selector - The selector to use to select which files to copy.
    
    Throws:
    
    FileSystemException - If this file is read-only, or if the source file does not exist, or on error copying the file.
  - moveTo
```
public void moveTo(FileObject destFile)
            throws FileSystemException
```
    Moves (rename) the file to another one
    
    Specified by:
    
    moveTo in interface FileObject
    
    Parameters:
    
    destFile - the New filename.
    
    Throws:
    
    FileSystemException - If this file is read-only, or if the source file does not exist, or on error copying the file.
  - isSameFile
```
protected boolean isSameFile(FileObject destFile)
                      throws FileSystemException
```
    Checks if this fileObject is the same file as destFile just with a different name.
    E.g. for case insensitive filesystems like windows.
    
    Throws:
    
    FileSystemException
  - doIsSameFile
```
protected boolean doIsSameFile(FileObject destFile)
                        throws FileSystemException
```
    Checks if this fileObject is the same file as destFile just with a different name.
    E.g. for case insensitive filesystems like windows.
    
    Throws:
    
    FileSystemException
  - canRenameTo
```
public boolean canRenameTo(FileObject newfile)
```
    Queries the object if a simple rename to the filename of newfile is possible.
    
    Specified by:
    
    canRenameTo in interface FileObject
    
    Parameters:
    
    newfile - the new filename
    
    Returns:
    
    true if rename is possible
  - findFiles
```
public FileObject[] findFiles(FileSelector selector)
                       throws FileSystemException
```
    Finds the set of matching descendents of this file, in depthwise order.
    
    Specified by:
    
    findFiles in interface FileObject
    
    Parameters:
    
    selector - The selector to use to select matching files.
    
    Returns:
    
    list of files or null if the base file (this object) do not exist
    
    Throws:
    
    FileSystemException
  - getContent
```
public FileContent getContent()
                       throws FileSystemException
```
    Returns the file's content.
    
    Specified by:
    
    getContent in interface FileObject
    
    Returns:
    
    This file's content.
    
    Throws:
    
    FileSystemException - On error getting this file's content.
  - refresh
```
public void refresh()
             throws FileSystemException
```
    This will prepare the fileObject to get resynchronized with the underlaying filesystem if required
    
    Specified by:
    
    refresh in interface FileObject
    
    Throws:
    
    FileSystemException
  - close
```
public void close()
           throws FileSystemException
```
    Closes this file, and its content.
    
    Specified by:
    
    close in interface FileObject
    
    Throws:
    
    FileSystemException - On error closing the file.
    
    See Also:
    
    FileContent.close()
  - getInputStream
```
public java.io.InputStream getInputStream()
                                   throws FileSystemException
```
    Returns an input stream to use to read the content of the file.
    
    Throws:
    
    FileSystemException
  - getRandomAccessContent
```
public RandomAccessContent getRandomAccessContent(RandomAccessMode mode)
                                           throws FileSystemException
```
    Returns an input/output stream to use to read and write the content of the file in and random manner.
    
    Throws:
    
    FileSystemException
  - getOutputStream
```
public java.io.OutputStream getOutputStream()
                                     throws FileSystemException
```
    Prepares this file for writing. Makes sure it is either a file, or its parent folder exists. Returns an output stream to use to write the content of the file to.
    
    Throws:
    
    FileSystemException
  - getOutputStream
```
public java.io.OutputStream getOutputStream(boolean bAppend)
                                     throws FileSystemException
```
    Prepares this file for writing. Makes sure it is either a file, or its parent folder exists. Returns an output stream to use to write the content of the file to.
    
    Parameters:
    
    bAppend - true when append to the file.
    Note: If the underlaying filesystem do not support this, it wont work.
    
    Throws:
    
    FileSystemException
  - endOutput
```
protected void endOutput()
                  throws java.lang.Exception
```
    Called when the ouput stream for this file is closed.
    
    Throws:
    
    java.lang.Exception
  - handleCreate
```
protected void handleCreate(FileType newType)
                     throws java.lang.Exception
```
    Called when this file is created. Updates cached info and notifies the parent and file system.
    
    Throws:
    
    java.lang.Exception
  - handleDelete
```
protected void handleDelete()
                     throws java.lang.Exception
```
    Called when this file is deleted. Updates cached info and notifies subclasses, parent and file system.
    
    Throws:
    
    java.lang.Exception
  - handleChanged
```
protected void handleChanged()
                      throws java.lang.Exception
```
    Called when this file is changed.
    This will only happen if you monitor the file using FileMonitor.
    
    Throws:
    
    java.lang.Exception
  - childrenChanged
```
protected void childrenChanged()
                        throws java.lang.Exception
```
    Deprecated.
    use childrenChanged(FileName,FileType)
    
    Notifies the file that its children have changed.
    
    Throws:
    
    java.lang.Exception
  - childrenChanged
```
protected void childrenChanged(FileName childName,
                               FileType newType)
                        throws java.lang.Exception
```
    Notifies the file that its children have changed.
    
    Throws:
    
    java.lang.Exception
  - findFiles
```
public void findFiles(FileSelector selector,
                      boolean depthwise,
                      java.util.List selected)
               throws FileSystemException
```
    Traverses the descendents of this file, and builds a list of selected files.
    
    Specified by:
    
    findFiles in interface FileObject
    
    Parameters:
    
    selector - the selector used to determine if the file should be selected
    
    depthwise - controls the ordering in the list. e.g. deepest first
    
    selected - container for selected files. list needs not to be empty.
    
    Throws:
    
    FileSystemException
  - isContentOpen
```
public boolean isContentOpen()
```
    Check if the content stream is open
    
    Specified by:
    
    isContentOpen in interface FileObject
    
    Returns:
    
    true if this is the case
  - isAttached
```
public boolean isAttached()
```
    Check if the internal state is "attached"
    
    Specified by:
    
    isAttached in interface FileObject
    
    Returns:
    
    true if this is the case
  - getFileContentInfoFactory
```
protected FileContentInfoFactory getFileContentInfoFactory()
```
    create the filecontentinfo implementation
  - injectType
```
protected void injectType(FileType fileType)
```
  - holdObject
```
public void holdObject(java.lang.Object strongRef)
```
    This method is meant to add a object where this object holds a strong reference then. E.g. a archive-filesystem creates a list of all childs and they shouldnt get garbage collected until the container is garbage collected
    
    Parameters:
    
    strongRef -
  - notifyAllStreamsClosed
```
protected void notifyAllStreamsClosed()
```
    will be called after this file-object closed all its streams.
  - getFileOperations
```
public FileOperations getFileOperations()
                                 throws FileSystemException
```
    Specified by:
    
    getFileOperations in interface FileObject
    
    Returns:
    
    FileOperations interface that provides access to the operations API.
    
    Throws:
    
    FileSystemException
  - finalize
```
protected void finalize()
                 throws java.lang.Throwable
```
    Overrides:
    
    finalize in class java.lang.Object
    
    Throws:
    
    java.lang.Throwable

Class AbstractFileObject

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractFileObject

Method Detail

doAttach

doDetach

doGetType

doIsHidden

doIsReadable

doIsWriteable

doListChildren

doListChildrenResolved

doDelete

doRename

doCreateFolder

onChildrenChanged

onChange

doGetLastModifiedTime

doSetLastModifiedTime

doGetAttributes

doSetAttribute

doGetCertificates

doGetContentSize

doGetInputStream

doGetRandomAccessContent

doGetOutputStream

toString

getName

getFileSystem

getURL

exists

getType

isHidden

isReadable

isWriteable

getParent

getChildren

getChild

resolveFile

resolveFile

delete

delete

createFile

createFolder

copyFrom

moveTo

isSameFile

doIsSameFile

canRenameTo

findFiles

getContent

refresh

close

getInputStream

getRandomAccessContent

getOutputStream

getOutputStream

endOutput

handleCreate

handleDelete

handleChanged

childrenChanged

childrenChanged

findFiles

isContentOpen

isAttached

getFileContentInfoFactory

injectType

holdObject

notifyAllStreamsClosed

getFileOperations

finalize