Flatten file directories (fixes #159)

Sources/InMemoryStore.swift

@@ -0,0 +1,94 @@
+//
+//  InMemoryStore.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 CoreData
+
+
+// MARK: - InMemoryStore
+
+/**
+ A storage interface that is backed only by memory.
+ */
+public final class InMemoryStore: StorageInterface, DefaultInitializableStore {
+    
+    /**
+     Initializes an `InMemoryStore` for the specified configuration
+     - parameter configuration: an optional configuration name from the model file. If not specified, defaults to `nil`, the "Default" configuration.
+     */
+    public init(configuration: String?) {
+    
+        self.configuration = configuration
+    }
+    
+    
+    // MARK: DefaultInitializableStore
+    
+    /**
+     Initializes an `InMemoryStore` with the "Default" configuration
+     */
+    public init() {
+        
+        self.configuration = nil
+    }
+    
+    
+    // MARK: StorageInterface
+    
+    /**
+     The string identifier for the `NSPersistentStore`'s `type` property. For `InMemoryStore`s, this is always set to `NSInMemoryStoreType`.
+     */
+    public static let storeType = NSInMemoryStoreType
+    
+    /**
+     The configuration name in the model file
+     */
+    public let configuration: String?
+    
+    /**
+     The options dictionary for the `NSPersistentStore`. For `InMemoryStore`s, this is always set to `nil`.
+     */
+    public let storeOptions: [AnyHashable: Any]? = nil
+    
+    /**
+     Do not call directly. Used by the `DataStack` internally.
+     */
+    public func didAddToDataStack(_ dataStack: DataStack) {
+        
+        self.dataStack = dataStack
+    }
+    
+    /**
+     Do not call directly. Used by the `DataStack` internally.
+     */
+    public func didRemoveFromDataStack(_ dataStack: DataStack) {
+        
+        self.dataStack = nil
+    }
+    
+    
+    // MARK: Private
+    
+    private weak var dataStack: DataStack?
+}