Package apple.foundation.enums

Class NSFileWrapperWritingOptions

  • public final class NSFileWrapperWritingOptions
extends java.lang.Object

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static long Atomic
      Whether writing is done atomically.
      static long WithNameUpdating
      Whether descendant file wrappers are sent -setFilename: if the writing succeeds.

    • Method Summary

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • Atomic

        public static final long Atomic
        Whether writing is done atomically. You can use this option to ensure that when overwriting a file package the overwriting either completely succeeds or completely fails, with no possibility of leaving the file package in an inconsistent state. Because this option causes additional I/O you shouldn't use it unnecessarily. For example, on Mac OS X you wouldn't use this option in an override of -[NSDocument writeToURL:ofType:error:] because NSDocument's implementation of safe saving already does atomic writing.
        See Also:
        Constant Field Values

      • WithNameUpdating

        public static final long WithNameUpdating
        Whether descendant file wrappers are sent -setFilename: if the writing succeeds. This is necessary when your application passes original contents URLs to -writeToURL:options:originalContentsURL:error:. Without using this and reusing child file wrappers properly subsequent invocations of -writeToURL:options:originalContentsURL:error: wouldn't be able to reliably create hard links in a new file package for performance because the record of names in the old file package would be out of date.
        See Also:
        Constant Field Values