/*

 File: EntityModel.h

 Abstract: Provides a simple entity-relationship model for describing 

 records, their attributes and relationships.

 Version: 1.0

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 Software without specific prior written permission from Apple.  Except

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 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION

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 */ 

#import <Cocoa/Cocoa.h>

#import "Entity.h"

@interface EntityModel : NSObject

{

    __strong id _representation;

}

- (id)initWithFileWrapper:(id)fileWrapper;

- (id)initWithContentsOfFile:(NSString *)filePath;

- (NSFileWrapper *)fileWrapperRepresentation;

//- (BOOL)addEntityName:(id)entityName withPropertyKeys:(NSArray *)propertyKeys;

- (NSMutableArray *)allEntities;

- (NSArray *)entityNames;

//- (NSArray *)propertyKeys;

- (NSString *)name;

- (NSArray *)propertyKeysForEntityName:(id)entityName;

- (NSArray *)attributeKeysForEntityName:(id)entityName;

- (NSArray *)relationshipKeysForEntityName:(id)entityName;

- (void)setName:(NSString *)name;

- (NSData *)xmlValue;

- (Entity *)entityWithName:(NSString *)name;

- (Entity *)entityWithEntityName:(NSString *)entityName;

@end