org.h2.store.fs
Class RecordingFileSystem

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

public class RecordingFileSystem
extends FileSystemWrapper

A file system that records all write operations and can re-play them.

Field Summary

static java.lang.String

PREFIX The prefix used for a debugging file system.

Constructor Summary

RecordingFileSystem()

Method Summary

void	createDirs(java.lang.String fileName) Create all required directories that are required for this file.
boolean	createNewFile(java.lang.String fileName) Create a new file.
java.lang.String	createTempFile(java.lang.String prefix, java.lang.String suffix, boolean deleteOnExit, boolean inTempDir) Create a new temporary file.
void	delete(java.lang.String fileName) Delete a file.
void	deleteRecursive(java.lang.String directory, boolean tryOnly) Delete a directory or file and all subdirectories and files.
java.lang.String	getPrefix() Get the prefix for this file system.
boolean	isTrace()
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.
static void	register() Register the file system.
void	rename(java.lang.String oldName, java.lang.String newName) Rename a file if this is allowed.
static void	setRecorder(Recorder recorder) Set the recorder class.
void	setTrace(boolean trace)
boolean	tryDelete(java.lang.String fileName) Try to delete a file.

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

accepts, canWrite, exists, fileStartsWith, getCanonicalPath, getFileName, getLastModified, getParent, isAbsolute, isDirectory, isReadOnly, length, listFiles, openFileInputStream, setReadOnly, unwrap

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 used for a debugging file system.

See Also:

Constant Field Values

Constructor Detail

RecordingFileSystem

public RecordingFileSystem()

Method Detail

register

public static void register()

Register the file system.

setRecorder

public static void setRecorder(Recorder recorder)

Set the recorder class.

Parameters:

recorder - the recorder

createDirs

public void createDirs(java.lang.String fileName)

Description copied from class: FileSystem

Create all required directories that are required for this file.

Overrides:

createDirs in class FileSystemWrapper

Parameters:

fileName - the file name (not directory name)

createNewFile

public boolean createNewFile(java.lang.String fileName)

Description copied from class: FileSystem

Create a new file.

Overrides:

createNewFile in class FileSystemWrapper

Parameters:

fileName - the file name

Returns:

true if creating was successful

createTempFile

public java.lang.String createTempFile(java.lang.String prefix,
                                       java.lang.String suffix,
                                       boolean deleteOnExit,
                                       boolean inTempDir)
                                throws java.io.IOException

Description copied from class: FileSystem

Create a new temporary file.

Overrides:

createTempFile in class FileSystemWrapper

Parameters:

prefix - the prefix of the file name (including directory name if required)

suffix - the suffix

deleteOnExit - if the file should be deleted when the virtual machine exists

inTempDir - if the file should be stored in the temporary directory

Returns:

the name of the created file

Throws:

java.io.IOException

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

deleteRecursive

public void deleteRecursive(java.lang.String directory,
                            boolean tryOnly)

Description copied from class: FileSystem

Delete a directory or file and all subdirectories and files.

Overrides:

deleteRecursive in class FileSystemWrapper

Parameters:

directory - the directory

tryOnly - whether errors should be ignored

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

getPrefix

public 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

isTrace

public boolean isTrace()

setTrace

public void setTrace(boolean trace)