org.h2.store.fs
Class FileSystemSplit

java.lang.Object
  org.h2.store.fs.FileSystem
      org.h2.store.fs.FileSystemWrapper
          org.h2.store.fs.FileSystemSplit

public class FileSystemSplit
extends FileSystemWrapper

A file system that may split files into multiple smaller files. (required for a FAT32 because it only support files up to 2 GB).

Field Summary

static java.lang.String

PREFIX The prefix to use for this file system.

Constructor Summary

FileSystemSplit()

Method Summary

void	delete(java.lang.String fileName) Delete a file.
long	getLastModified(java.lang.String fileName) Get the last modified date of a file
protected java.lang.String	getPrefix() Get the prefix for this file system.
long	length(java.lang.String fileName) Get the length of a file.
java.lang.String[]	listFiles(java.lang.String directory) List the files in the given directory.
java.io.InputStream	openFileInputStream(java.lang.String fileName) Create an input stream to read from the file.
FileObject	openFileObject(java.lang.String fileName, java.lang.String mode) Open a random access file object.
java.io.OutputStream	openFileOutputStream(java.lang.String fileName, boolean append) Create an output stream to write into the file.
void	rename(java.lang.String oldName, java.lang.String newName) Rename a file if this is allowed.
boolean	setReadOnly(java.lang.String fileName) Disable the ability to write.
boolean	tryDelete(java.lang.String fileName) Try to delete a file.
java.lang.String	unwrap(java.lang.String fileName) Get the unwrapped file name (without wrapper prefixes if wrapping / delegating file systems are used).

Methods inherited from class org.h2.store.fs.FileSystemWrapper

accepts, canWrite, createDirs, createNewFile, createTempFile, deleteRecursive, exists, fileStartsWith, getCanonicalPath, getFileName, getParent, isAbsolute, isDirectory, isReadOnly

Methods inherited from class org.h2.store.fs.FileSystem

getInstance, getNextTempFileNamePart, register, unregister

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PREFIX

public static final java.lang.String PREFIX

The prefix to use for this file system.

See Also:

Constant Field Values

Constructor Detail

FileSystemSplit

public FileSystemSplit()

Method Detail

setReadOnly

public boolean setReadOnly(java.lang.String fileName)

Description copied from class: FileSystem

Disable the ability to write.

Overrides:

setReadOnly in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

true if the call was successful

delete

public void delete(java.lang.String fileName)

Description copied from class: FileSystem

Delete a file.

Overrides:

delete in class FileSystemWrapper

Parameters:

fileName - the file name

getLastModified

public long getLastModified(java.lang.String fileName)

Description copied from class: FileSystem

Get the last modified date of a file

Overrides:

getLastModified in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

the last modified date

length

public long length(java.lang.String fileName)

Description copied from class: FileSystem

Get the length of a file.

Overrides:

length in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

the length in bytes

listFiles

public java.lang.String[] listFiles(java.lang.String directory)

Description copied from class: FileSystem

List the files in the given directory.

Overrides:

listFiles in class FileSystemWrapper

Parameters:

directory - the directory

Returns:

the list of fully qualified file names

openFileInputStream

public java.io.InputStream openFileInputStream(java.lang.String fileName)
                                        throws java.io.IOException

Description copied from class: FileSystem

Create an input stream to read from the file.

Overrides:

openFileInputStream in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

the input stream

Throws:

java.io.IOException

openFileObject

public FileObject openFileObject(java.lang.String fileName,
                                 java.lang.String mode)
                          throws java.io.IOException

Description copied from class: FileSystem

Open a random access file object.

Overrides:

openFileObject in class FileSystemWrapper

Parameters:

fileName - the file name

mode - the access mode. Supported are r, rw, rws, rwd

Returns:

the file object

Throws:

java.io.IOException

openFileOutputStream

public java.io.OutputStream openFileOutputStream(java.lang.String fileName,
                                                 boolean append)

Description copied from class: FileSystem

Create an output stream to write into the file.

Overrides:

openFileOutputStream in class FileSystemWrapper

Parameters:

fileName - the file name

append - if true, the file will grow, if false, the file will be truncated first

Returns:

the output stream

rename

public void rename(java.lang.String oldName,
                   java.lang.String newName)

Description copied from class: FileSystem

Rename a file if this is allowed.

Overrides:

rename in class FileSystemWrapper

Parameters:

oldName - the old fully qualified file name

newName - the new fully qualified file name

tryDelete

public boolean tryDelete(java.lang.String fileName)

Description copied from class: FileSystem

Try to delete a file.

Overrides:

tryDelete in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

true if it could be deleted

unwrap

public java.lang.String unwrap(java.lang.String fileName)

Description copied from class: FileSystem

Get the unwrapped file name (without wrapper prefixes if wrapping / delegating file systems are used).

Overrides:

unwrap in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

the unwrapped

getPrefix

protected java.lang.String getPrefix()

Description copied from class: FileSystemWrapper

Get the prefix for this file system.

Specified by:

getPrefix in class FileSystemWrapper

Returns:

the prefix