--- /dev/null
+//
+// NJMapping.h
+// Enjoy
+//
+// Created by Sam McCall on 4/05/09.
+// Copyright 2009 University of Otago. All rights reserved.
+//
+
+@class NJOutput;
+@class NJInput;
+
+@interface NJMapping : NSObject
+
+@property (nonatomic, copy) NSString *name;
+@property (nonatomic, readonly) NSMutableDictionary *entries;
+
+- (id)initWithName:(NSString *)name;
+- (NJOutput *)objectForKeyedSubscript:(NJInput *)input;
+- (void)setObject:(NJOutput *)output forKeyedSubscript:(NJInput *)input;
+- (NSDictionary *)serialize;
+- (BOOL)writeToURL:(NSURL *)url error:(NSError **)error;
+
++ (id)mappingWithContentsOfURL:(NSURL *)url mappings:(NSArray *)mappings error:(NSError **)error;
+
+@end