Files
CoreStore/HardcoreData/ObjectQueryable.swift
John Rommel Estropia 6b8bb3e434 elegant queries
2014-12-14 23:47:18 +09:00

48 lines
2.1 KiB
Swift

//
// ObjectQueryable.swift
// HardcoreData
//
// Copyright (c) 2014 John Rommel Estropia
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
import UIKit
public typealias FetchRequestCustomization = (fetchRequest: NSFetchRequest) -> ()
public protocol ObjectQueryable {
func findFirst<T: NSManagedObject>(entity: T.Type) -> T?
func findFirst<T: NSManagedObject>(entity: T.Type, customizeFetch: FetchRequestCustomization?) -> T?
func findFirst<T: NSManagedObject>(query: ObjectQuery<T>) -> T?
func findFirst<T: NSManagedObject>(query: ObjectQuery<T>, customizeFetch: FetchRequestCustomization?) -> T?
func findAll<T: NSManagedObject>(entity: T.Type) -> [T]?
func findAll<T: NSManagedObject>(entity: T.Type, customizeFetch: FetchRequestCustomization?) -> [T]?
func findAll<T: NSManagedObject>(query: ObjectQuery<T>) -> [T]?
func findAll<T: NSManagedObject>(query: ObjectQuery<T>, customizeFetch: FetchRequestCustomization?) -> [T]?
func count<T: NSManagedObject>(entity: T.Type) -> Int
func count<T: NSManagedObject>(query: ObjectQuery<T>) -> Int
}