org.h2.store.fs

类 FilePathEncrypt

java.lang.Object

org.h2.store.fs.FilePath

org.h2.store.fs.FilePathWrapper

org.h2.store.fs.FilePathEncrypt

public class FilePathEncrypt
extends FilePathWrapper

An encrypted file.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	FilePathEncrypt.FileEncrypt An encrypted file with a read cache.

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
FilePathEncrypt()

方法概要

限定符和类型	方法和说明
static byte[]	getPasswordBytes(char[] passwordChars) Convert a char array to a byte array, in UTF-16 format.
protected String	getPrefix()
String	getScheme() Get the scheme (prefix) for this file provider.
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.
static void	register() Register this file system.
long	size() Get the size of a file in bytes
FilePath	unwrap(String fileName) Get the base path for the given wrapped path.

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

canWrite, createDirectory, createFile, createTempFile, delete, exists, getBase, getParent, getPath, isAbsolute, isDirectory, lastModified, moveTo, newDirectoryStream, setReadOnly, toRealPath, unwrap, wrap

从类继承的方法 org.h2.store.fs.FilePath

get, getName, getNextTempFileNamePart, 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

FilePathEncrypt

public FilePathEncrypt()

方法详细资料

register

public static void register()

Register this file system.

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

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

getPrefix

protected String getPrefix()

覆盖:

getPrefix 在类中 FilePathWrapper

unwrap

public FilePath unwrap(String fileName)

从类复制的说明: FilePathWrapper

Get the base path for the given wrapped path.

覆盖:

unwrap 在类中 FilePathWrapper

参数:

fileName - the path including the scheme prefix

返回:

the base file path

size

public long size()

从类复制的说明: FilePath

Get the size of a file in bytes

覆盖:

size 在类中 FilePathWrapper

返回:

the size in bytes

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

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 FilePathWrapper

返回:

the input stream

抛出:

IOException

getPasswordBytes

public static byte[] getPasswordBytes(char[] passwordChars)

Convert a char array to a byte array, in UTF-16 format. The char array is not cleared after use (this must be done by the caller).

参数:

passwordChars - the password characters

返回:

the byte array