• Original search API on macOS
• Document-centric
  Search results identify document
  Not location in document
• Not ideal for databases

Original search tool on iOS Database-friendly Spotlight API Search for content in apps Allows deep linking Access CoreSpotlight search data from your app No zero-length files

Way to indicate property participation NSPropertyDescription.indexedBySpotlight Way to specify display name NSEntityDescription.coreSpotlightDisplayNameExpression Exporter

NSExpression Evaluated during Core Spotlight update object parameter will be an instance of NSManagedObject Can return anything Core Spotlight can accept CSLocalizedString Keypath Property name Function lowercase:(displayName) FUNCTION:(castTo:(@“Class”, @“MyUtilityClass”), @“displayNameFor:”, self))

Implements CSSearchableIndexDelegate Default implementations of all methods Uses a separate store on a background thread Initialize with NSPersistentStoreDescription + model Override point is NSCoreDataCoreSpotlightDelegate.attributeSet(for object:)

Will automatically export to Core Spotlight on first launch Uses Persistent History Tracking to ensure all data is pushed

Core Spotlight and Spotlight integration mutually exclusive
entity.coreSpotlightDisplayNameExpression OR property.storedInExternalRecord Doesn’t track results of batch operations

• Configure database for faster search
• One or more columns per index
• One or more indexes per column
• Database will choose most efficient index based on query

• Single property index

NSAttributeDescription.isIndexed

• Multiple column index

NSEntityDescription.compoundIndexes