org.h2.store.fs
Class FileSystemDiskNio

java.lang.Object
  org.h2.store.fs.FileSystem
      org.h2.store.fs.FileSystemWrapper
          org.h2.store.fs.FileSystemDiskNio

Direct Known Subclasses:

FileSystemDiskNioMapped

public class FileSystemDiskNio
extends FileSystemWrapper

This file system stores files on disk and uses java.nio to access the files. This class uses FileChannel.

Constructor Summary

FileSystemDiskNio()

Method Summary

protected java.lang.String	getPrefix() Get the prefix for this file system.
protected FileObject	open(java.lang.String fileName, java.lang.String mode) Try to open a file with this name and mode.
FileObject	openFileObject(java.lang.String fileName, java.lang.String mode) Open a random access file object.

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

accepts, canWrite, createDirs, createNewFile, createTempFile, delete, deleteRecursive, exists, fileStartsWith, getCanonicalPath, getFileName, getLastModified, getParent, isAbsolute, isDirectory, isReadOnly, length, listFiles, openFileInputStream, openFileOutputStream, rename, setReadOnly, tryDelete, unwrap

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

getInstance, getNextTempFileNamePart, register, unregister

Methods inherited from class java.lang.Object

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

Constructor Detail

FileSystemDiskNio

public FileSystemDiskNio()

Method Detail

openFileObject

public FileObject openFileObject(java.lang.String fileName,
                                 java.lang.String mode)
                          throws java.io.IOException

Description copied from class: FileSystem

Open a random access file object.

Overrides:

openFileObject in class FileSystemWrapper

Parameters:

fileName - the file name

mode - the access mode. Supported are r, rw, rws, rwd

Returns:

the file object

Throws:

java.io.IOException

getPrefix

protected java.lang.String getPrefix()

Get the prefix for this file system.

Specified by:

getPrefix in class FileSystemWrapper

Returns:

the prefix

open

protected FileObject open(java.lang.String fileName,
                          java.lang.String mode)
                   throws java.io.IOException

Try to open a file with this name and mode.

Parameters:

fileName - the file name

mode - the open mode

Returns:

the file object

Throws:

java.io.IOException - if opening fails