FilePathDisk (H2 Database Engine 2.0.0 API)

java.lang.Object
- org.h2.store.fs.FilePath
- - org.h2.store.fs.disk.FilePathDisk

```
public class FilePathDisk
extends FilePath
```
This file system stores files on disk. This is the most common file system.

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

FilePathDisk()

构造器
构造器和说明
`FilePathDisk()`

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`boolean`	`canWrite()` Check if the file is writable.
`void`	`createDirectory()` Create a directory (all required parent directories already exist).
`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.
`boolean`	`exists()` Checks if a file exists.
`static String`	`expandUserHomeDirectory(String fileName)` Expand '~' to the user home directory.
`FilePath`	`getParent()` Get the parent directory of a file or directory.
`FilePathDisk`	`getPath(String path)` Convert a file to a path.
`String`	`getScheme()` Get the scheme (prefix) for this file provider.
`boolean`	`isAbsolute()` Check if the file name includes a path.
`boolean`	`isDirectory()` Check if it is a file or a directory.
`boolean`	`isRegularFile()` Check if it is a regular file.
`long`	`lastModified()` Get the last modified date of a file
`void`	`moveTo(FilePath newName, boolean atomicReplace)` Rename a file if this is allowed.
`List<FilePath>`	`newDirectoryStream()` List the files and directories in the given directory.
`InputStream`	`newInputStream()` Create an input stream to read from the file.
`OutputStream`	`newOutputStream(boolean append)` Create an output stream to write into the file.
`FileChannel`	`open(String mode)` Open a random access file object.
`boolean`	`setReadOnly()` Disable the ability to write.
`long`	`size()` Get the size of a file in bytes
`FilePathDisk`	`toRealPath()` Normalize a file name.
`protected static String`	`translateFileName(String fileName)` Translate the file name to the native format.

从类继承的方法 org.h2.store.fs.FilePath
get, getName, newFileChannelOutputStream, register, toString, unregister, unwrap

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
  - FilePathDisk
```
public FilePathDisk()
```
- 方法详细资料
  - getPath
```
public FilePathDisk getPath(String path)
```
    从类复制的说明: FilePath
    
    Convert a file to a path. This is similar to java.nio.file.spi.FileSystemProvider.getPath, but may return an object even if the scheme doesn't match in case of the default file provider.
    
    指定者:
    
    getPath 在类中 FilePath
    
    参数:
    
    path - the path
    
    返回:
    
    the file path object
  - size
```
public long size()
```
    从类复制的说明: FilePath
    
    Get the size of a file in bytes
    
    指定者:
    
    size 在类中 FilePath
    
    返回:
    
    the size in bytes
  - translateFileName
```
protected static String translateFileName(String fileName)
```
    Translate the file name to the native format. This will replace '\' with '/' and expand the home directory ('~').
    
    参数:
    
    fileName - the file name
    
    返回:
    
    the native file name
  - expandUserHomeDirectory
```
public static String expandUserHomeDirectory(String fileName)
```
    Expand '~' to the user home directory. It is only be expanded if the '~' stands alone, or is followed by '/' or '\'.
    
    参数:
    
    fileName - the file name
    
    返回:
    
    the native file name
  - moveTo
```
public void moveTo(FilePath newName,
                   boolean atomicReplace)
```
    从类复制的说明: FilePath
    
    Rename a file if this is allowed.
    
    指定者:
    
    moveTo 在类中 FilePath
    
    参数:
    
    newName - 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
  - createFile
```
public boolean createFile()
```
    从类复制的说明: FilePath
    
    Create a new file.
    
    指定者:
    
    createFile 在类中 FilePath
    
    返回:
    
    true if creating was successful
  - exists
```
public boolean exists()
```
    从类复制的说明: FilePath
    
    Checks if a file exists.
    
    指定者:
    
    exists 在类中 FilePath
    
    返回:
    
    true if it exists
  - 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.
    
    指定者:
    
    delete 在类中 FilePath
  - newDirectoryStream
```
public List<FilePath> newDirectoryStream()
```
    从类复制的说明: FilePath
    
    List the files and directories in the given directory.
    
    指定者:
    
    newDirectoryStream 在类中 FilePath
    
    返回:
    
    the list of fully qualified file names
  - canWrite
```
public boolean canWrite()
```
    从类复制的说明: FilePath
    
    Check if the file is writable.
    
    指定者:
    
    canWrite 在类中 FilePath
    
    返回:
    
    if the file is writable
  - setReadOnly
```
public boolean setReadOnly()
```
    从类复制的说明: FilePath
    
    Disable the ability to write.
    
    指定者:
    
    setReadOnly 在类中 FilePath
    
    返回:
    
    true if the call was successful
  - toRealPath
```
public FilePathDisk toRealPath()
```
    从类复制的说明: FilePath
    
    Normalize a file name.
    
    指定者:
    
    toRealPath 在类中 FilePath
    
    返回:
    
    the normalized file name
  - getParent
```
public FilePath getParent()
```
    从类复制的说明: FilePath
    
    Get the parent directory of a file or directory.
    
    指定者:
    
    getParent 在类中 FilePath
    
    返回:
    
    the parent directory name
  - isDirectory
```
public boolean isDirectory()
```
    从类复制的说明: FilePath
    
    Check if it is a file or a directory.
    
    指定者:
    
    isDirectory 在类中 FilePath
    
    返回:
    
    true if it is a directory
  - isRegularFile
```
public boolean isRegularFile()
```
    从类复制的说明: FilePath
    
    Check if it is a regular file.
    
    指定者:
    
    isRegularFile 在类中 FilePath
    
    返回:
    
    true if it is a regular file
  - isAbsolute
```
public boolean isAbsolute()
```
    从类复制的说明: FilePath
    
    Check if the file name includes a path.
    
    指定者:
    
    isAbsolute 在类中 FilePath
    
    返回:
    
    if the file name is absolute
  - lastModified
```
public long lastModified()
```
    从类复制的说明: FilePath
    
    Get the last modified date of a file
    
    指定者:
    
    lastModified 在类中 FilePath
    
    返回:
    
    the last modified date
  - createDirectory
```
public void createDirectory()
```
    从类复制的说明: FilePath
    
    Create a directory (all required parent directories already exist).
    
    指定者:
    
    createDirectory 在类中 FilePath
  - 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 FilePath
    
    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
  - newInputStream
```
public InputStream newInputStream()
                           throws IOException
```
    从类复制的说明: FilePath
    
    Create an input stream to read from the file.
    
    覆盖:
    
    newInputStream 在类中 FilePath
    
    返回:
    
    the input stream
    
    抛出:
    
    IOException - If an I/O error occurs
  - open
```
public FileChannel open(String mode)
                 throws IOException
```
    从类复制的说明: FilePath
    
    Open a random access file object.
    
    指定者:
    
    open 在类中 FilePath
    
    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
  - getScheme
```
public String getScheme()
```
    从类复制的说明: FilePath
    
    Get the scheme (prefix) for this file provider. This is similar to java.nio.file.spi.FileSystemProvider.getScheme.
    
    指定者:
    
    getScheme 在类中 FilePath
    
    返回:
    
    the scheme
  - 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 FilePath
    
    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

类 FilePathDisk

字段概要

从类继承的字段 org.h2.store.fs.FilePath

构造器概要

方法概要

从类继承的方法 org.h2.store.fs.FilePath

从类继承的方法 java.lang.Object

构造器详细资料

FilePathDisk

方法详细资料

getPath

size

translateFileName

expandUserHomeDirectory

moveTo

createFile

exists

delete

newDirectoryStream

canWrite

setReadOnly

toRealPath

getParent

isDirectory

isRegularFile

isAbsolute

lastModified

createDirectory

newOutputStream

newInputStream

open

getScheme

createTempFile