net.aerith.misao.io
Class DiskFileSystem

java.lang.Object
  |
  +--net.aerith.misao.io.DiskFileSystem

public class DiskFileSystem

extends java.lang.Object

implements FileSystem

The DiskFileSystem represents a directory on the real file system on the disk drive.

Field Summary

protected java.io.File

db_folder The directory.

Constructor Summary

DiskFileSystem(java.io.File db_folder)
Constructs a DiskFileSystem.

Method Summary

Folder	createHierarchicalFolder(java.util.Vector folder_list) Creates the folder hierarchy and returns the folder.
void	discard() Discards the file system.
private boolean	discard(java.io.File file) Discards the specified folder.
Folder	getFolder(java.lang.String name) Gets the top folder.
Folder	getHierarchicalFolder(java.util.Vector folder_list) Gets the folder represented by the specified hierarchy.
PrimitiveManager	getPrimitiveManager(Folder folder, XmlDBHolder holder_class, XmlDBRecord record_class) Gets the new PrimitiveManager of the specified folder.

Methods inherited from class java.lang.Object

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

Field Detail

db_folder

protected java.io.File db_folder

The directory.

Constructor Detail

DiskFileSystem

public DiskFileSystem(java.io.File db_folder)
               throws java.io.IOException

Constructs a DiskFileSystem.

Parameters:

db_folder - the directory.

Throws:

java.io.IOException - if I/O error occurs.

Method Detail

getFolder

public Folder getFolder(java.lang.String name)

Gets the top folder.

Specified by:

getFolder in interface FileSystem

Parameters:

name - the folder name.

Returns:

the folder.

getHierarchicalFolder

public Folder getHierarchicalFolder(java.util.Vector folder_list)

Gets the folder represented by the specified hierarchy.

Specified by:

getHierarchicalFolder in interface FileSystem

Parameters:

folder_list - the list of hierarchical folders.

Returns:

the terminal folder.

createHierarchicalFolder

public Folder createHierarchicalFolder(java.util.Vector folder_list)
                                throws java.io.IOException

Creates the folder hierarchy and returns the folder.

Specified by:

createHierarchicalFolder in interface FileSystem

Parameters:

folder_list - the list of hierarchical folders.

Returns:

the terminal folder.

Throws:

java.io.IOException - if I/O error occurs.

getPrimitiveManager

public PrimitiveManager getPrimitiveManager(Folder folder,
                                            XmlDBHolder holder_class,
                                            XmlDBRecord record_class)
                                     throws java.io.IOException

Gets the new PrimitiveManager of the specified folder.

Specified by:

getPrimitiveManager in interface FileSystem

Parameters:

folder - the folder.

holder_class - the holder class object of the XML records.

record_class - the class object of the XML records.

Throws:

java.io.IOException - if I/O error occurs.

discard

public void discard()
             throws java.io.IOException

Discards the file system. All files and directories in the file system removed.

Specified by:

discard in interface FileSystem

Throws:

java.io.IOException - if I/O error occurs.

discard

private boolean discard(java.io.File file)

Discards the specified folder. All files and directories in the specified folder are removed.

Parameters:

file - the file or directory.

Returns:

true if all files and directories are successfully deleted.