PreferencesFactory (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

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Java^TM 2 Platform
Std. Ed. v1.4.1

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java.util.prefs
Interface 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.

Since:: 1.4
See Also:: Preferences

Method Summary

Preferences systemRoot()
Returns the system root preference node.

Preferences userRoot()
Returns the user root preference node corresponding to the calling user.

Method Detail

systemRoot

public Preferences systemRoot()

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

userRoot

public 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.