WIP: objective-C fetching

Sources/ObjectiveC/CSWhere.swift

@@ -0,0 +1,147 @@
+//
+//  CSWhere.swift
+//  CoreStore
+//
+//  Copyright © 2016 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 Foundation
+import CoreData
+
+
+// MARK: - CSWhere
+
+/**
+ The `CSWhere` serves as the Objective-C bridging type for `Where`.
+ */
+@objc
+public final class CSWhere: NSObject, CSFetchClause, CSQueryClause, CSDeleteClause, CoreStoreBridge {
+    
+    /**
+     Initializes a `CSWhere` clause with an `NSPredicate`
+     
+     - parameter predicate: the `NSPredicate` for the fetch or query
+     - returns: a `CSWhere` clause with an `NSPredicate`
+     */
+    @objc
+    public static func predicate(predicate: NSPredicate) -> CSWhere {
+        
+        return self.init(Where(predicate))
+    }
+
+    /**
+     Initializes a `CSWhere` clause with a predicate that always evaluates to the specified boolean value
+     
+     - parameter value: the boolean value for the predicate
+     - returns: a `CSWhere` clause with a predicate that always evaluates to the specified boolean value
+     */
+    @objc
+    public static func value(value: Bool) -> CSWhere {
+        
+        return self.init(Where(value))
+    }
+    
+    /**
+     Initializes a `CSWhere` clause with a predicate using the specified string format and arguments
+     
+     - parameter format: the format string for the predicate
+     - parameter argumentArray: the arguments for `format`
+     - returns: a `CSWhere` clause with a predicate using the specified string format and arguments
+     */
+    @objc
+    public static func format(format: String, argumentArray: [NSObject]?) -> CSWhere {
+        
+        return self.init(Where(format, argumentArray: argumentArray))
+    }
+    
+    /**
+     Initializes a `CSWhere` clause that compares equality
+     
+     - parameter keyPath: the keyPath to compare with
+     - parameter value: the arguments for the `==` operator
+     - returns: a `CSWhere` clause that compares equality
+     */
+    @objc
+    public static func keyPath(keyPath: KeyPath, isEqualTo value: NSObject?) -> CSWhere {
+        
+        return self.init(Where(keyPath, isEqualTo: value))
+    }
+    
+    /**
+     Initializes a `CSWhere` clause that compares membership
+     
+     - parameter keyPath: the keyPath to compare with
+     - parameter list: the array to check membership of
+     - returns: a `CSWhere` clause that compares membership
+     */
+    @objc
+    public static func keyPath(keyPath: KeyPath, isMemberOf list: NSArray) -> CSWhere {
+        
+        return self.init(Where(keyPath, isMemberOf: list))
+    }
+    
+    
+    // MARK: NSObject
+    
+    public override var hash: Int {
+        
+        return self.swift.hashValue
+    }
+    
+    public override func isEqual(object: AnyObject?) -> Bool {
+        
+        guard let object = object as? CSWhere else {
+            
+            return false
+        }
+        return self.swift == object.swift
+    }
+    
+    
+    // MARK: CSFetchClause, CSQueryClause, CSDeleteClause
+    
+    @objc
+    public func applyToFetchRequest(fetchRequest: NSFetchRequest) {
+        
+        self.swift.applyToFetchRequest(fetchRequest)
+    }
+    
+    
+    // MARK: CoreStoreBridge
+    
+    internal let swift: Where
+    
+    internal init(_ swiftObject: Where) {
+        
+        self.swift = swiftObject
+        super.init()
+    }
+}
+
+
+// MARK: - Where
+
+extension Where: CoreStoreBridgeable {
+    
+    // MARK: CoreStoreBridgeable
+    
+    internal typealias ObjCType = CSWhere
+}