Package org.h2.store.fs

Class FileBaseDefault

java.lang.Object

java.nio.channels.spi.AbstractInterruptibleChannel

java.nio.channels.FileChannel

org.h2.store.fs.FileBase

org.h2.store.fs.FileBaseDefault

All Implemented Interfaces:

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

Direct Known Subclasses:

FileEncrypt

public abstract class FileBaseDefault
extends FileBase

Default implementation of the slow operations that need synchronization because they involve the file position.

Nested Class Summary

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

FileChannel.MapMode

Constructor Summary

Constructors

Constructor	Description
FileBaseDefault()

Method Summary

Modifier and Type	Method	Description
protected abstract void	implTruncate(long size)	The truncate implementation.
final long	position()
final FileChannel	position(long newPosition)
final int	read(ByteBuffer dst)
final FileChannel	truncate(long newLength)
final int	write(ByteBuffer src)

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

force, implCloseChannel, lock, map, read, read, transferFrom, transferTo, tryLock, write, write

Methods inherited from class java.nio.channels.FileChannel

lock, open, open, read, size, 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, toString, wait, wait, wait

Methods inherited from interface java.nio.channels.Channel

isOpen

Constructor Details

FileBaseDefault

public FileBaseDefault()

Method Details

position

public final long position()
                    throws IOException

Specified by:

position in interface SeekableByteChannel

Specified by:

position in class FileChannel

Throws:

IOException

position

public final FileChannel position(long newPosition)
                           throws IOException

Specified by:

position in interface SeekableByteChannel

Specified by:

position in class FileChannel

Throws:

IOException

read

public final int read(ByteBuffer dst)
               throws IOException

Specified by:

read in interface ReadableByteChannel

Specified by:

read in interface SeekableByteChannel

Specified by:

read in class FileChannel

Throws:

IOException

write

public final int write(ByteBuffer src)
                throws IOException

Specified by:

write in interface SeekableByteChannel

Specified by:

write in interface WritableByteChannel

Specified by:

write in class FileChannel

Throws:

IOException

truncate

public final FileChannel truncate(long newLength)
                           throws IOException

Specified by:

truncate in interface SeekableByteChannel

Specified by:

truncate in class FileChannel

Throws:

IOException

implTruncate

protected abstract void implTruncate(long size)
                              throws IOException

The truncate implementation.

Parameters:

size - the new size

Throws:

IOException - on failure