Interface java.beans.Visibility 
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Interface java.beans.Visibility

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 Index

o avoidingGui()
o dontUseGui()
This method instructs the bean that it should not use the Gui.
o needsGui()
o okToUseGui()
This method instructs the bean that it is OK to use the Gui.

Methods

o avoidingGui 
public abstract boolean avoidingGui()

Returns:
true if the bean is currently avoiding use of the Gui. e.g. due to a call on dontUseGui().
o dontUseGui 
public abstract void dontUseGui()
This method instructs the bean that it should not use the Gui.

o needsGui 
public abstract boolean needsGui()

Returns:
True if the bean absolutely needs a GUI available in order to get its work done.
o okToUseGui 
public abstract void okToUseGui()
This method instructs the bean that it is OK to use the Gui. 

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