Visibility (Java SE 14 & JDK 14)
Description: declaration: module: java.desktop, package: java.beans, interface: Visibility
Keywords: java.beans.Visibility interface

Module java.desktop
Package 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.

Since:
  1.1

- ## Method Summary

  Modifier and Type | Method | 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.

- ## Method Details

  - ### 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().