javax.print

Class ServiceUIFactory

Table des matières

  • public abstract class ServiceUIFactory
extends Object
    Services may optionally provide UIs which allow different styles of interaction in different roles. One role may be end-user browsing and setting of print options. Another role may be administering the print service.

    Although the Print Service API does not presently provide standardised support for administering a print service, monitoring of the print service is possible and a UI may provide for private update mechanisms.

    The basic design intent is to allow applications to lazily locate and initialize services only when needed without any API dependencies except in an environment in which they are used.

    Swing UIs are preferred as they provide a more consistent L&F and can support accessibility APIs.

    Example usage: 

      ServiceUIFactory factory = printService.getServiceUIFactory();
  if (factory != null) {
      JComponent swingui = (JComponent)factory.getUI(
                                         ServiceUIFactory.MAIN_UIROLE,
                                         ServiceUIFactory.JCOMPONENT_UI);
      if (swingui != null) {
          tabbedpane.add("Custom UI", swingui);
      }
  }

    • Field Summary

      Fields 
      Modifier and Type Field and Description
      static int ABOUT_UIROLE
      Denotes a UI which performs an informative "About" role.
      static int ADMIN_UIROLE
      Denotes a UI which performs an administrative role.
      static String DIALOG_UI
      Denotes a UI implemented as an AWT dialog.
      static String JCOMPONENT_UI
      Denotes a UI implemented as a Swing component.
      static String JDIALOG_UI
      Denotes a UI implemented as a Swing dialog.
      static int MAIN_UIROLE
      Denotes a UI which performs the normal end user role.
      static String PANEL_UI
      Denotes a UI implemented as an AWT panel.
      static int RESERVED_UIROLE
      Not a valid role but role id's greater than this may be used for private roles supported by a service.

        

    • Constructor Summary

      Constructors 
      Constructor and Description
      ServiceUIFactory() 

        

    • Field Detail

      • JCOMPONENT_UI

        public static final String JCOMPONENT_UI
        Denotes a UI implemented as a Swing component. The value of the String is the fully qualified classname : "javax.swing.JComponent".
        See Also:
        Constant Field Values

      • PANEL_UI

        public static final String PANEL_UI
        Denotes a UI implemented as an AWT panel. The value of the String is the fully qualified classname : "java.awt.Panel"
        See Also:
        Constant Field Values

      • DIALOG_UI

        public static final String DIALOG_UI
        Denotes a UI implemented as an AWT dialog. The value of the String is the fully qualified classname : "java.awt.Dialog"
        See Also:
        Constant Field Values

      • JDIALOG_UI

        public static final String JDIALOG_UI
        Denotes a UI implemented as a Swing dialog. The value of the String is the fully qualified classname : "javax.swing.JDialog"
        See Also:
        Constant Field Values

      • ABOUT_UIROLE

        public static final int ABOUT_UIROLE
        Denotes a UI which performs an informative "About" role.
        See Also:
        Constant Field Values

      • ADMIN_UIROLE

        public static final int ADMIN_UIROLE
        Denotes a UI which performs an administrative role.
        See Also:
        Constant Field Values

      • MAIN_UIROLE

        public static final int MAIN_UIROLE
        Denotes a UI which performs the normal end user role.
        See Also:
        Constant Field Values

      • RESERVED_UIROLE

        public static final int RESERVED_UIROLE
        Not a valid role but role id's greater than this may be used for private roles supported by a service. Knowledge of the function performed by this role is required to make proper use of it.
        See Also:
        Constant Field Values

    • Constructor Detail

      • ServiceUIFactory

        public ServiceUIFactory()

    • Method Detail

      • getUI

        public abstract Object getUI(int role,
           String ui)
        Get a UI object which may be cast to the requested UI type by the application and used in its user interface.

        Parameters:
        role - requested. Must be one of the standard roles or a private role supported by this factory.
        ui - type in which the role is requested.
        Returns:
        the UI role or null if the requested UI role is not available from this factory
        Throws:
        IllegalArgumentException - if the role or ui is neither one of the standard ones, nor a private one supported by the factory.

      • getUIClassNamesForRole

        public abstract String[] getUIClassNamesForRole(int role)
        Given a UI role obtained from this factory obtain the UI types available from this factory which implement this role. The returned Strings should refer to the static variables defined in this class so that applications can use equality of reference ("==").
        Parameters:
        role - to be looked up.
        Returns:
        the UI types supported by this class for the specified role, null if no UIs are available for the role.
        Throws:
        IllegalArgumentException - is the role is a non-standard role not supported by this factory.

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Document créé le 30/08/2006, dernière modification le 04/03/2020
Source du document imprimé : https://www.gaudry.be/java-api-rf-javax/print/serviceuifactory.html

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Références

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