Package org.fest.swing.applet

Class BasicAppletContext

java.lang.Object

org.fest.swing.applet.BasicAppletContext

All Implemented Interfaces:

AppletContext

public class BasicAppletContext
extends Object
implements AppletContext

Understands a basic (and limited) implementation of AppletContext.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	BasicAppletContext.EmptyAppletEnumeration

Field Summary

Fields

Modifier and Type	Field	Description
private static final Enumeration<Applet>	NO_APPLETS
private final StatusDisplay	statusDisplay
private final Map<String,InputStream>	streamMap

Constructor Summary

Constructors

Constructor	Description
BasicAppletContext(StatusDisplay statusDisplay)	Creates a new BasicAppletContext.

Method Summary

Modifier and Type	Method	Description
private static Applet	appletFrom(StatusDisplay statusDisplay)
Applet	getApplet(String name)	If the StatusDisplay passed to this context is an instance of AppletViewer, this method will return the Applet of such AppletViewer.
Enumeration<Applet>	getApplets()	Returns an enumeration containing the Applet returned by getApplet(String).
AudioClip	getAudioClip(URL url)	Not implemented.
Image	getImage(URL url)	Not implemented.
InputStream	getStream(String key)	Returns the stream to which specified key is associated within this applet context.
Iterator<String>	getStreamKeys()	Finds all the keys of the streams in this applet context.
void	setStream(String key, InputStream stream)	Associates the specified stream with the specified key in this applet context.
void	showDocument(URL url)	Not implemented.
void	showDocument(URL url, String target)	Not implemented.
void	showStatus(String status)	Requests that the given status be displayed in this context's StatusDisplay.

Methods inherited from class java.lang.Object

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

Field Details

NO_APPLETS

private static final Enumeration<Applet> NO_APPLETS

streamMap

private final Map<String,InputStream> streamMap

statusDisplay

private final StatusDisplay statusDisplay

Constructor Details

BasicAppletContext

public BasicAppletContext(StatusDisplay statusDisplay)

Creates a new BasicAppletContext.

Parameters:

statusDisplay - where the application can inform users of its current state.

Throws:

NullPointerException - if statusDisplay is null.

Method Details

getApplet

public Applet getApplet(String name)

If the StatusDisplay passed to this context is an instance of AppletViewer, this method will return the Applet of such AppletViewer. Otherwise this method returns null.

Specified by:

getApplet in interface AppletContext

Returns:

the Applet in this context's StatusDisplay (if any.)

See Also:

• AppletContext.getApplet(String)

getApplets

public Enumeration<Applet> getApplets()

Returns an enumeration containing the Applet returned by getApplet(String). If getApplet(String) returns null, this method will return an empty enumeration.

Specified by:

getApplets in interface AppletContext

Returns:

an enumeration containing the Applet in this context's StatusDisplay (if any.)

See Also:

• getApplet(String)
• AppletContext.getApplets()

appletFrom

private static Applet appletFrom(StatusDisplay statusDisplay)

getAudioClip

public AudioClip getAudioClip(URL url)

Not implemented. Returns null.

Specified by:

getAudioClip in interface AppletContext

See Also:

• AppletContext.getAudioClip(URL)

getImage

public Image getImage(URL url)

Not implemented. Returns null.

Specified by:

getImage in interface AppletContext

See Also:

• AppletContext.getImage(URL)

getStream

public InputStream getStream(String key)

Returns the stream to which specified key is associated within this applet context. Returns null if the applet context contains no stream for this key.

Specified by:

getStream in interface AppletContext

Parameters:

key - key whose associated stream is to be returned.

Returns:

the stream to which this applet context maps the key.

getStreamKeys

public Iterator<String> getStreamKeys()

Finds all the keys of the streams in this applet context.

Specified by:

getStreamKeys in interface AppletContext

Returns:

an iterator of all the names of the streams in this applet context.

setStream

public void setStream(String key,
 InputStream stream)

Associates the specified stream with the specified key in this applet context.

Specified by:

setStream in interface AppletContext

Parameters:

key - key with which the specified value is to be associated.

stream - stream to be associated with the specified key. If this parameter is null, the specified key is removed in this applet context.

showDocument

public void showDocument(URL url)

Not implemented.

Specified by:

showDocument in interface AppletContext

See Also:

• AppletContext.showDocument(URL)

showDocument

public void showDocument(URL url,
 String target)

Not implemented.

Specified by:

showDocument in interface AppletContext

See Also:

• AppletContext.showDocument(URL, String)

showStatus

public void showStatus(String status)

Requests that the given status be displayed in this context's StatusDisplay.

Specified by:

showStatus in interface AppletContext

Parameters:

status - a message to display.