程序包 java.util.prefs

接口 PreferencesFactory

public interface PreferencesFactory

A factory object that generates Preferences objects. Providers of new Preferences implementations should provide corresponding PreferencesFactory implementations so that the new Preferences implementation can be installed in place of the platform-specific default implementation.

This class is for Preferences implementers only. Normal users of the Preferences facility should have no need to consult this documentation.

从以下版本开始:

1.4

另请参阅:

Preferences

方法概要

限定符和类型	方法	说明
Preferences	systemRoot()	Returns the system root preference node.
Preferences	userRoot()	Returns the user root preference node corresponding to the calling user.

方法详细资料

systemRoot

Preferences systemRoot()

Returns the system root preference node. (Multiple calls on this method will return the same object reference.)

返回:

the system root preference node

userRoot

Preferences userRoot()

Returns the user root preference node corresponding to the calling user. In a server, the returned value will typically depend on some implicit client-context.

返回:

the user root preference node corresponding to the calling user