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PreferencesFactory (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档


Java™ Platform
Standard Ed. 6

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

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


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.


Java™ Platform
Standard Ed. 6

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.