JavaTM 2 Platform Std. Ed. v1.6.0
java.beans
Interface Visibility
- All Known Subinterfaces:
- BeanContext, BeanContextServices
- All Known Implementing Classes:
- BeanContextServicesSupport, BeanContextSupport
public interface Visibility
Under some circumstances a bean may be run on servers where a GUI
is not available. This interface can be used to query a bean to
determine whether it absolutely needs a gui, and to advise the
bean whether a GUI is available.
This interface is for expert developers, and is not needed
for normal simple beans. To avoid confusing end-users we
avoid using getXXX setXXX design patterns for these methods.
Method Summary |
boolean |
avoidingGui()
Determines whether this bean is avoiding using a GUI. |
void |
dontUseGui()
This method instructs the bean that it should not use the Gui. |
boolean |
needsGui()
Determines whether this bean needs a GUI. |
void |
okToUseGui()
This method instructs the bean that it is OK to use the Gui. |
needsGui
boolean needsGui()
- Determines whether this bean needs a GUI.
- Returns:
- True if the bean absolutely needs a GUI available in
order to get its work done.
dontUseGui
void dontUseGui()
- This method instructs the bean that it should not use the Gui.
okToUseGui
void okToUseGui()
- This method instructs the bean that it is OK to use the Gui.
avoidingGui
boolean avoidingGui()
- Determines whether this bean is avoiding using a GUI.
- Returns:
- true if the bean is currently avoiding use of the Gui.
e.g. due to a call on dontUseGui().
Copyright 2003 Sun Microsystems, Inc. All rights reserved
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