/*

 File: Entity.h

 Abstract: Describes an entity belonging to an EntityModel.

 Version: 1.0

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 */ 

#import <Cocoa/Cocoa.h>

@interface Entity : NSObject

{

    __strong id _representation;

}

// Creating an Entity object

+ (id)entityWithDictionary:(NSDictionary *)dict;

- (id)initWithDictionary:(NSDictionary *)dict;

// Saving and loading support

- (NSData *)fileRepresentation;

// Adding and removing properties

- (void)addAttribute:(id)attribute;

- (void)removeAttribute:(id)attribute;

- (void)addRelationship:(id)relationship;

- (void)removeRelationship:(id)relationship;

// Getting and setting entity properties

- (NSString *)name;

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

- (NSString *)className;

- (void)setClassName:(NSString *)className;

- (NSString *)displayName;

- (void)setDisplayName:(NSString *)displayName;

- (NSString *)entityName;

- (void)setEntityName:(NSString *)entityName;

- (NSArray *)identityKeys;

- (void)setIdentityKeys:(NSArray *)identityProperties;

- (BOOL)isReadOnly;

- (void)setReadOnly:(BOOL)flag;

- (NSArray *)propertyKeys;

// Getting attribute properties

- (id)attributeNamed:(NSString *)name;

- (NSMutableArray *)attributes;

- (NSArray *)attributeKeys;

// Getting relationship properties

- (id)relationshipNamed:(NSString *)name;

- (NSMutableArray *)relationships;

- (NSArray *)relationshipKeys;

@end