COAttachmentID class documentation

COAttachmentID : NSObject <NSCopying>

Reference to an attachment, composed of the hash of the referenced attachment.

AuthorsGenerated by qmathe
Declared inCOAttachmentID.h


Can appear as a value object inside a COItem.


- (instancetype) initWithData: (NSData *)aData

Initializes and returns an attachmend ID based on the given hash.

You should almost always use -[COSSQLiteStore importAttachmentFromURL:] to get an attachment ID, and let the store import the original attachment.

The hash represents the attachment in a unique way. For example, you can pass a hash generated from the attachment content.

    - (NSData *) dataValue

    Returns the attachment hash.

    See -initWithData: .