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:

java.io.Closeable, java.lang.AutoCloseable, java.nio.channels.ByteChannel, java.nio.channels.Channel, java.nio.channels.GatheringByteChannel, java.nio.channels.InterruptibleChannel, java.nio.channels.ReadableByteChannel, java.nio.channels.ScatteringByteChannel, java.nio.channels.SeekableByteChannel, java.nio.channels.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

java.nio.channels.FileChannel.MapMode

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
FileEncrypt(java.lang.String name, byte[] encryptionKey, java.nio.channels.FileChannel base)
FileEncrypt(java.lang.String name, FileEncrypt source, java.nio.channels.FileChannel base)

Method Summary

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

close, isOpen

Field Detail

BLOCK_SIZE

public static final int BLOCK_SIZE

The block size.

See Also:

Constant Field Values

Constructor Detail

FileEncrypt

public FileEncrypt(java.lang.String name,
                   byte[] encryptionKey,
                   java.nio.channels.FileChannel base)

FileEncrypt

public FileEncrypt(java.lang.String name,
                   FileEncrypt source,
                   java.nio.channels.FileChannel base)

Method Detail

implCloseChannel

protected void implCloseChannel()
                         throws java.io.IOException

Overrides:

implCloseChannel in class FileBase

Throws:

java.io.IOException

read

public int read(java.nio.ByteBuffer dst,
                long position)
         throws java.io.IOException

Overrides:

read in class FileBase

Throws:

java.io.IOException

write

public int write(java.nio.ByteBuffer src,
                 long position)
          throws java.io.IOException

Overrides:

write in class FileBase

Throws:

java.io.IOException

size

public long size()
          throws java.io.IOException

Specified by:

size in interface java.nio.channels.SeekableByteChannel

Specified by:

size in class java.nio.channels.FileChannel

Throws:

java.io.IOException

implTruncate

protected void implTruncate(long newSize)
                     throws java.io.IOException

Description copied from class: FileBaseDefault

The truncate implementation.

Specified by:

implTruncate in class FileBaseDefault

Parameters:

newSize - the new size

Throws:

java.io.IOException - on failure

force

public void force(boolean metaData)
           throws java.io.IOException

Overrides:

force in class FileBase

Throws:

java.io.IOException

tryLock

public java.nio.channels.FileLock tryLock(long position,
                                          long size,
                                          boolean shared)
                                   throws java.io.IOException

Overrides:

tryLock in class FileBase

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object