net.sf.jguiraffe.examples.tutorial.mainwnd

Class FileSystemListModel

java.lang.Object

net.sf.jguiraffe.examples.tutorial.mainwnd.FileSystemListModel

All Implemented Interfaces:

net.sf.jguiraffe.gui.builder.components.model.ListModel

public class FileSystemListModel
extends Object
implements net.sf.jguiraffe.gui.builder.components.model.ListModel

A ListModel implementation for the roots of the available file systems.

In the main window there is a combobox that allows the user to select a file system whose content is then displayed by the file system browser. This class is the underlying model of this combobox. At construction time it determines the available file system roots. The methods defined by the ListModel interface are implemented on these root objects. As values the corresponding java.io.File objects are returned. As display names the file names are used.

Version:

$Id: FileSystemListModel.java 205 2012-01-29 18:29:57Z oheger $

Author:

Oliver Heger

Constructor Summary

Constructors

Constructor and Description
FileSystemListModel() Creates a new instance of FileSystemListModel.

Method Summary

Modifier and Type	Method and Description
Object	getDisplayObject(int index) Returns the display object at the given index.
Class<?>	getType() Returns the data type of the model elements.
Object	getValueObject(int index) Returns the value object at the given index.
int	size() Returns the size of this model.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileSystemListModel

public FileSystemListModel()

Creates a new instance of FileSystemListModel.

Method Detail

getDisplayObject

public Object getDisplayObject(int index)

Returns the display object at the given index. This implementation returns the name of the java.io.File representing the file system root at the given index.

Specified by:

getDisplayObject in interface net.sf.jguiraffe.gui.builder.components.model.ListModel

Parameters:

index - the index

Returns:

the display object for this model element

getType

public Class<?> getType()

Returns the data type of the model elements. For this model implementation java.io.File is the data type.

Specified by:

getType in interface net.sf.jguiraffe.gui.builder.components.model.ListModel

Returns:

the data type of this model

getValueObject

public Object getValueObject(int index)

Returns the value object at the given index. This implementation returns the java.io.File object representing the file system root at the given index.

Specified by:

getValueObject in interface net.sf.jguiraffe.gui.builder.components.model.ListModel

Parameters:

index - the index

Returns:

the value object at this index

size

public int size()

Returns the size of this model. This implementation returns the number of file system roots available.

Specified by:

size in interface net.sf.jguiraffe.gui.builder.components.model.ListModel

Returns:

the size of this model