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Class ServiceUIFactory

java.lang.Object
javax.print.ServiceUIFactory
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

Modifier and Type Field Description
static final int ABOUT_UIROLE
Denotes a UI which performs an informative "About" role.
static final int ADMIN_UIROLE
Denotes a UI which performs an administrative role.
static final String DIALOG_UI
Denotes a UI implemented as an AWT dialog.
static final String JCOMPONENT_UI
Denotes a UI implemented as a Swing component.
static final String JDIALOG_UI
Denotes a UI implemented as a Swing dialog.
static final int MAIN_UIROLE
Denotes a UI which performs the normal end user role.
static final String PANEL_UI
Denotes a UI implemented as an AWT panel.
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.

Constructor Summary

ServiceUIFactory()
Modifier Constructor Description
protected
Constructor for subclasses to call.

Method Summary

Modifier and Type Method Description
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.
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.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

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:

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:

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:

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:

ABOUT_UIROLE

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

ADMIN_UIROLE

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

MAIN_UIROLE

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

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:

Constructor Details

ServiceUIFactory

protected ServiceUIFactory()
Constructor for subclasses to call.

Method Details

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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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/print/ServiceUIFactory.html