org.h2.store.fs.rec

类 FilePathRec

java.lang.Object

org.h2.store.fs.FilePath

org.h2.store.fs.FilePathWrapper

org.h2.store.fs.rec.FilePathRec

public class FilePathRec
extends FilePathWrapper

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

字段概要

从类继承的字段 org.h2.store.fs.FilePath

name

构造器概要

构造器

构造器和说明
FilePathRec()

方法概要

限定符和类型	方法和说明
boolean	createFile() Create a new file.
FilePath	createTempFile(String suffix, boolean inTempDir) Create a new temporary file.
void	delete() Delete a file or directory if it exists.
String	getScheme() Get the prefix for this file system.
boolean	isTrace()
void	moveTo(FilePath newPath, boolean atomicReplace) Rename a file if this is allowed.
OutputStream	newOutputStream(boolean append) Create an output stream to write into the file.
FileChannel	open(String mode) Open a random access file object.
static void	register() Register the file system.
static void	setRecorder(Recorder recorder) Set the recorder class.
void	setTrace(boolean trace)

从类继承的方法 org.h2.store.fs.FilePathWrapper

canWrite, createDirectory, exists, getBase, getParent, getPath, getPrefix, isAbsolute, isDirectory, isRegularFile, lastModified, newDirectoryStream, newInputStream, setReadOnly, size, toRealPath, unwrap, unwrap, wrap

从类继承的方法 org.h2.store.fs.FilePath

get, getName, newFileChannelOutputStream, register, toString, unregister

从类继承的方法 java.lang.Object

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

构造器详细资料

FilePathRec

public FilePathRec()

方法详细资料

register

public static void register()

Register the file system.

setRecorder

public static void setRecorder(Recorder recorder)

Set the recorder class.

参数:

recorder - the recorder

createFile

public boolean createFile()

从类复制的说明: FilePath

Create a new file.

覆盖:

createFile 在类中 FilePathWrapper

返回:

true if creating was successful

createTempFile

public FilePath createTempFile(String suffix,
                               boolean inTempDir)
                        throws IOException

从类复制的说明: FilePath

Create a new temporary file.

覆盖:

createTempFile 在类中 FilePathWrapper

参数:

suffix - the suffix

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

返回:

the name of the created file

抛出:

IOException - on failure

delete

public void delete()

从类复制的说明: FilePath

Delete a file or directory if it exists. Directories may only be deleted if they are empty.

覆盖:

delete 在类中 FilePathWrapper

open

public FileChannel open(String mode)
                 throws IOException

从类复制的说明: FilePath

Open a random access file object.

覆盖:

open 在类中 FilePathWrapper

参数:

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

返回:

the file object

抛出:

IOException - If an I/O error occurs

newOutputStream

public OutputStream newOutputStream(boolean append)
                             throws IOException

从类复制的说明: FilePath

Create an output stream to write into the file.

覆盖:

newOutputStream 在类中 FilePathWrapper

参数:

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

返回:

the output stream

抛出:

IOException - If an I/O error occurs

moveTo

public void moveTo(FilePath newPath,
                   boolean atomicReplace)

从类复制的说明: FilePath

Rename a file if this is allowed.

覆盖:

moveTo 在类中 FilePathWrapper

参数:

newPath - the new fully qualified file name

atomicReplace - whether the move should be atomic, and the target file should be replaced if it exists and replacing is possible

isTrace

public boolean isTrace()

setTrace

public void setTrace(boolean trace)

getScheme

public String getScheme()

Get the prefix for this file system.

指定者:

getScheme 在类中 FilePath

返回:

the prefix