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.
Methods
| Modifier and Type | Method and Description |
|---|---|
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. |
Methods
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().
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Documentation extracted from Debian's OpenJDK Development Kit package.
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https://docs.oracle.com/javase/8/docs/api/java/beans/Visibility.html