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  1. JDK
  2. JDK-4493891

(prefs) Ability to determine if key is available

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    • Icon: Enhancement Enhancement
    • Resolution: Future Project
    • Icon: P4 P4
    • None
    • 1.4.0
    • core-libs
    • generic
    • generic

      Name: bsC130419 Date: 08/20/2001


      java version "1.4.0-beta"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
      Java HotSpot(TM) Client VM (build 1.4.0-beta-b65, mixed mode)

      I love the Preferences class, and I respect the reason why all of the getXxxx()
      methods require defaults. However, sometimes there are preferences of the
      user's that have an important affect on what the user is expecting. I do not
      want to revert to a system default without at least informing them.

      I could use the Properties class for these important preferences, but I love
      the hierarchical nature of Preferences. It also would seem to be a
      unnecessarily large code change if the business requirement of what was
      important and what was not changed.

      So I propose a few different solutions to my issue. I would love to have all
      of these methods, but any one of them would work. These methods would be on
      the Preferences class:

          public boolean keyExists(String key) throws BackingStoreException;
          public String get(String key) throws BackingStoreException;
          public static boolean isBackingStoreAvailable();

      Thanks for listening!
      (Review ID: 130259)
      ======================================================================
      ###@###.### 11/3/04 20:31 GMT

            sherman Xueming Shen
            bstrathesunw Bill Strathearn (Inactive)
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