Package apple.foundation

Class NSError

    • Constructor Detail

      • NSError

        protected NSError​(org.moe.natj.general.Pointer peer)

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • alloc

        public static NSError alloc()

      • allocWithZone

        public static java.lang.Object allocWithZone​(org.moe.natj.general.ptr.VoidPtr zone)

      • automaticallyNotifiesObserversForKey

        public static boolean automaticallyNotifiesObserversForKey​(java.lang.String key)

      • cancelPreviousPerformRequestsWithTarget

        public static void cancelPreviousPerformRequestsWithTarget​(java.lang.Object aTarget)

      • cancelPreviousPerformRequestsWithTargetSelectorObject

        public static void cancelPreviousPerformRequestsWithTargetSelectorObject​(java.lang.Object aTarget,
                                                                         org.moe.natj.objc.SEL aSelector,
                                                                         java.lang.Object anArgument)

      • classFallbacksForKeyedArchiver

        public static NSArray<java.lang.String> classFallbacksForKeyedArchiver()

      • classForKeyedUnarchiver

        public static org.moe.natj.objc.Class classForKeyedUnarchiver()

      • debugDescription_static

        public static java.lang.String debugDescription_static()

      • description_static

        public static java.lang.String description_static()

      • errorWithDomainCodeUserInfo

        public static NSError errorWithDomainCodeUserInfo​(java.lang.String domain,
                                                  long code,
                                                  NSDictionary<java.lang.String,​?> dict)

      • hash_static

        public static long hash_static()

      • instanceMethodSignatureForSelector

        public static NSMethodSignature instanceMethodSignatureForSelector​(org.moe.natj.objc.SEL aSelector)

      • instancesRespondToSelector

        public static boolean instancesRespondToSelector​(org.moe.natj.objc.SEL aSelector)

      • isSubclassOfClass

        public static boolean isSubclassOfClass​(org.moe.natj.objc.Class aClass)

      • keyPathsForValuesAffectingValueForKey

        public static NSSet<java.lang.String> keyPathsForValuesAffectingValueForKey​(java.lang.String key)

      • new_objc

        public static java.lang.Object new_objc()

      • resolveClassMethod

        public static boolean resolveClassMethod​(org.moe.natj.objc.SEL sel)

      • resolveInstanceMethod

        public static boolean resolveInstanceMethod​(org.moe.natj.objc.SEL sel)

      • setUserInfoValueProviderForDomainProvider

        public static void setUserInfoValueProviderForDomainProvider​(java.lang.String errorDomain,
                                                             NSError.Block_setUserInfoValueProviderForDomainProvider provider)
        Specify a block which will be called from the implementations of localizedDescription, localizedFailureReason, localizedRecoverySuggestion, localizedRecoveryOptions, recoveryAttempter, helpAnchor, and debugDescription when the underlying value for these is not present in the userInfo dictionary of NSError instances with the specified domain. The provider will be called with the userInfo key corresponding to the queried property: For instance, NSLocalizedDescriptionKey for localizedDescription. The provider should return nil for any keys it is not able to provide and, very importantly, any keys it does not recognize (since we may extend the list of keys in future releases). The specified block will be called synchronously at the time when the above properties are queried. The results are not cached. This provider is optional. It enables localization and formatting of error messages to be done lazily; rather than populating the userInfo at NSError creation time, these keys will be fetched on-demand when asked for. It is expected that only the “owner” of an NSError domain specifies the provider for the domain, and this is done once. This facility is not meant for consumers of errors to customize the userInfo entries. This facility should not be used to customize the behaviors of error domains provided by the system. If an appropriate result for the requested key cannot be provided, return nil rather than choosing to manufacture a generic fallback response such as "Operation could not be completed, error 42." NSError will take care of the fallback cases.

      • setVersion_static

        public static void setVersion_static​(long aVersion)

      • superclass_static

        public static org.moe.natj.objc.Class superclass_static()

      • supportsSecureCoding

        public static boolean supportsSecureCoding()

      • version_static

        public static long version_static()

      • code

        public long code()

      • copyWithZone

        public java.lang.Object copyWithZone​(org.moe.natj.general.ptr.VoidPtr zone)
        Specified by:
        copyWithZone in interface NSCopying

      • domain

        public java.lang.String domain()
        These define the error. Domains are described by names that are arbitrary strings used to differentiate groups of codes; for custom domain using reverse-DNS naming will help avoid conflicts. Codes are domain-specific.

      • helpAnchor

        public java.lang.String helpAnchor()
        Return the help anchor that can be used to create a help button to accompany the error when it's displayed to the user. This is done automatically by +[NSAlert alertWithError:], which the presentError: variants in NSApplication go through. The default implementation of this picks up the value of the NSHelpAnchorErrorKey from the userInfo dictionary. If not present, it consults the userInfoValueProvider for the domain. If that returns nil, this also returns nil.

      • initWithDomainCodeUserInfo

        public NSError initWithDomainCodeUserInfo​(java.lang.String domain,
                                          long code,
                                          NSDictionary<java.lang.String,​?> dict)
        Domain cannot be nil; dict may be nil if no userInfo desired.

      • localizedDescription

        public java.lang.String localizedDescription()
        The primary user-presentable message for the error, for instance for NSFileReadNoPermissionError: "The file "File Name" couldn't be opened because you don't have permission to view it.". This message should ideally indicate what failed and why it failed. This value either comes from NSLocalizedDescriptionKey, or NSLocalizedFailureErrorKey+NSLocalizedFailureReasonErrorKey, or NSLocalizedFailureErrorKey. The steps this takes to construct the description include: 1. Look for NSLocalizedDescriptionKey in userInfo, use value as-is if present. 2. Look for NSLocalizedFailureErrorKey in userInfo. If present, use, combining with value for NSLocalizedFailureReasonErrorKey if available. 3. Fetch NSLocalizedDescriptionKey from userInfoValueProvider, use value as-is if present. 4. Fetch NSLocalizedFailureErrorKey from userInfoValueProvider. If present, use, combining with value for NSLocalizedFailureReasonErrorKey if available. 5. Look for NSLocalizedFailureReasonErrorKey in userInfo or from userInfoValueProvider; combine with generic "Operation failed" message. 6. Last resort localized but barely-presentable string manufactured from domain and code. The result is never nil.

      • localizedFailureReason

        public java.lang.String localizedFailureReason()
        Return a complete sentence which describes why the operation failed. For instance, for NSFileReadNoPermissionError: "You don't have permission.". In many cases this will be just the "because" part of the error message (but as a complete sentence, which makes localization easier). Default implementation of this picks up the value of NSLocalizedFailureReasonErrorKey from the userInfo dictionary. If not present, it consults the userInfoValueProvider for the domain, and if that returns nil, this also returns nil.

      • localizedRecoveryOptions

        public NSArray<java.lang.String> localizedRecoveryOptions()
        Return titles of buttons that are appropriate for displaying in an alert. These should match the string provided as a part of localizedRecoverySuggestion. The first string would be the title of the right-most and default button, the second one next to it, and so on. If used in an alert the corresponding default return values are NSAlertFirstButtonReturn + n. Default implementation of this picks up the value of NSLocalizedRecoveryOptionsErrorKey from the userInfo dictionary. If not present, it consults the userInfoValueProvider for the domain, and if that returns nil, this also returns nil. nil return usually implies no special suggestion, which would imply a single "OK" button.

      • localizedRecoverySuggestion

        public java.lang.String localizedRecoverySuggestion()
        Return the string that can be displayed as the "informative" (aka "secondary") message on an alert panel. For instance, for NSFileReadNoPermissionError: "To view or change permissions, select the item in the Finder and choose File > Get Info.". Default implementation of this picks up the value of NSLocalizedRecoverySuggestionErrorKey from the userInfo dictionary. If not present, it consults the userInfoValueProvider for the domain, and if that returns nil, this also returns nil.

      • recoveryAttempter

        public java.lang.Object recoveryAttempter()
        Return an object that conforms to the NSErrorRecoveryAttempting informal protocol. The recovery attempter must be an object that can correctly interpret an index into the array returned by localizedRecoveryOptions. The default implementation of this picks up the value of NSRecoveryAttempterErrorKey from the userInfo dictionary. If not present, it consults the userInfoValueProvider for the domain. If that returns nil, this also returns nil.

      • _supportsSecureCoding

        public boolean _supportsSecureCoding()
        Description copied from interface: NSSecureCoding
        This property must return YES on all classes that allow secure coding. Subclasses of classes that adopt NSSecureCoding and override initWithCoder: must also override this method and return YES. The Secure Coding Guide should be consulted when writing methods that decode data.
        Specified by:
        _supportsSecureCoding in interface NSSecureCoding

      • userInfo

        public NSDictionary<java.lang.String,​?> userInfo()
        Additional info which may be used to describe the error further. Examples of keys that might be included in here are "Line Number", "Failed URL", etc. Embedding other errors in here can also be used as a way to communicate underlying reasons for failures; for instance "File System Error" embedded in the userInfo of an NSError returned from a higher level document object. If the embedded error information is itself NSError, the standard key NSUnderlyingErrorKey can be used.

      • fileProviderErrorForCollisionWithItem

        public static java.lang.Object fileProviderErrorForCollisionWithItem​(NSFileProviderItem existingItem)

      • fileProviderErrorForNonExistentItemWithIdentifier

        public static java.lang.Object fileProviderErrorForNonExistentItemWithIdentifier​(java.lang.String itemIdentifier)