apple.foundation.enums

Class NSFileWrapperWritingOptions

java.lang.Object

apple.foundation.enums.NSFileWrapperWritingOptions

public final class NSFileWrapperWritingOptions
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and 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create hard links in a new file package for performance because the record of names in the old file package would be out of date.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