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- 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.
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Method Summary
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.
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Method Detail
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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.
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dontUseGui
void dontUseGui()
This method instructs the bean that it should not use the Gui.
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okToUseGui
void okToUseGui()
This method instructs the bean that it is OK to use the Gui.
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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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