Package org.h2.store.fs.encrypt

Class FileEncrypt

java.lang.Object

java.nio.channels.spi.AbstractInterruptibleChannel

java.nio.channels.FileChannel

org.h2.store.fs.FileBase

org.h2.store.fs.FileBaseDefault

org.h2.store.fs.encrypt.FileEncrypt

All Implemented Interfaces:

Closeable, AutoCloseable, ByteChannel, Channel, GatheringByteChannel, InterruptibleChannel, ReadableByteChannel, ScatteringByteChannel, SeekableByteChannel, WritableByteChannel

public class FileEncrypt
extends FileBaseDefault

An encrypted file with a read cache.

Nested Class Summary

Nested classes/interfaces inherited from class java.nio.channels.FileChannel

FileChannel.MapMode

Field Summary

Fields

Modifier and Type	Field	Description
static final int	BLOCK_SIZE	The block size.

Constructor Summary

Constructors

Constructor	Description
FileEncrypt(String name, byte[] encryptionKey, FileChannel base)
FileEncrypt(String name, FileEncrypt source, FileChannel base)

Method Summary

Modifier and Type	Method	Description
void	force(boolean metaData)
protected void	implCloseChannel()
protected void	implTruncate(long newSize)	The truncate implementation.
int	read(ByteBuffer dst, long position)
long	size()
String	toString()
FileLock	tryLock(long position, long size, boolean shared)
int	write(ByteBuffer src, long position)

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

position, position, read, truncate, write

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

lock, map, read, transferFrom, transferTo, write

Methods inherited from class java.nio.channels.FileChannel

lock, open, open, read, tryLock, write

Methods inherited from class java.nio.channels.spi.AbstractInterruptibleChannel

begin, close, end, isOpen

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.nio.channels.Channel

isOpen

Field Details

BLOCK_SIZE

public static final int BLOCK_SIZE

The block size.

See Also:

• Constant Field Values

Constructor Details

FileEncrypt

public FileEncrypt(String name,
 byte[] encryptionKey,
 FileChannel base)

FileEncrypt

public FileEncrypt(String name,
 FileEncrypt source,
 FileChannel base)

Method Details

implCloseChannel

protected void implCloseChannel()
                         throws IOException

Overrides:

implCloseChannel in class FileBase

Throws:

IOException

read

public int read(ByteBuffer dst,
 long position)
         throws IOException

Overrides:

read in class FileBase

Throws:

IOException

write

public int write(ByteBuffer src,
 long position)
          throws IOException

Overrides:

write in class FileBase

Throws:

IOException

size

public long size()
          throws IOException

Specified by:

size in interface SeekableByteChannel

Specified by:

size in class FileChannel

Throws:

IOException

implTruncate

protected void implTruncate(long newSize)
                     throws IOException

Description copied from class: FileBaseDefault

The truncate implementation.

Specified by:

implTruncate in class FileBaseDefault

Parameters:

newSize - the new size

Throws:

IOException - on failure

force

public void force(boolean metaData)
           throws IOException

Overrides:

force in class FileBase

Throws:

IOException

tryLock

public FileLock tryLock(long position,
 long size,
 boolean shared)
                 throws IOException

Overrides:

tryLock in class FileBase

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object