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gnu.java.beans
Class DummyAppletContext  

java.lang.Object
  gnu.java.beans.DummyAppletContext

All Implemented Interfaces:

java.applet.AppletContext

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class DummyAppletContext

extends java.lang.Object

implements java.applet.AppletContext

A placeholder AppletContext implementation that does nothing.

This is the default implementation for GNU Classpath and is used for Applet beans being created with java.beans.Beans.instantiate.

It has no functionality in order to allow it to be used without any dependencies (e.g. sound, network access, ...).

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Field Summary
private static java.util.Enumeration	EMPTY_ENUMERATION

 

Constructor Summary
(package private)	DummyAppletContext()

 

Method Summary
java.applet.Applet	getApplet(java.lang.String name)           Returns null for every argument.
java.util.Enumeration	getApplets()           Returns always an empty Enumeration.
java.applet.AudioClip	getAudioClip(java.net.URL url)           Implementation is VM neutral and returns a dummy java.applet.AudioClip instance for every URL that returns a non-null object on URL.openConnection().
java.awt.Image	getImage(java.net.URL url)           Loads the Image instance by delegating to java.awt.Toolkit.createImage(URL) .
java.io.InputStream	getStream(java.lang.String key)           Returns null for every argument.
java.util.Iterator	getStreamKeys()           Returns always an empty iterator.
void	setStream(java.lang.String key, java.io.InputStream stream)           Does nothing.
void	showDocument(java.net.URL url)           Does nothing.
void	showDocument(java.net.URL url, java.lang.String target)           Does nothing.
void	showStatus(java.lang.String message)           Does nothing.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

EMPTY_ENUMERATION

private static final java.util.Enumeration EMPTY_ENUMERATION

Constructor Detail

DummyAppletContext

DummyAppletContext()

Method Detail

getAudioClip

public java.applet.AudioClip getAudioClip(java.net.URL url)

Implementation is VM neutral and returns a dummy java.applet.AudioClip instance for every URL that returns a non-null object on URL.openConnection().

Specified by:

getAudioClip in interface java.applet.AppletContext

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getImage

public java.awt.Image getImage(java.net.URL url)

Loads the Image instance by delegating to java.awt.Toolkit.createImage(URL) .

Specified by:

getImage in interface java.applet.AppletContext

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getApplet

public java.applet.Applet getApplet(java.lang.String name)

Returns null for every argument.

Specified by:

getApplet in interface java.applet.AppletContext

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getApplets

public java.util.Enumeration getApplets()

Returns always an empty Enumeration.

Specified by:

getApplets in interface java.applet.AppletContext

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showDocument

public void showDocument(java.net.URL url)

Does nothing.

Specified by:

showDocument in interface java.applet.AppletContext

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showDocument

public void showDocument(java.net.URL url,
                         java.lang.String target)

Does nothing.

Specified by:

showDocument in interface java.applet.AppletContext

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showStatus

public void showStatus(java.lang.String message)

Does nothing.

Specified by:

showStatus in interface java.applet.AppletContext

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setStream

public void setStream(java.lang.String key,
                      java.io.InputStream stream)
               throws java.io.IOException

Does nothing.

Specified by:

setStream in interface java.applet.AppletContext

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getStream

public java.io.InputStream getStream(java.lang.String key)

Returns null for every argument.

Specified by:

getStream in interface java.applet.AppletContext

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getStreamKeys

public java.util.Iterator getStreamKeys()

Returns always an empty iterator.

Specified by:

getStreamKeys in interface java.applet.AppletContext

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> gnu >> java >> [ beans overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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