Model Class Reference

#import <Model.h>

Inherits IModel-p.

List of all members.

Public Member Functions
(id)	- init
(void)	- initializeModel
(BOOL)	- hasProxy: [implementation]
(void)	- registerProxy: [implementation]
(id< IProxy >)	- removeProxy: [implementation]
(id< IProxy >)	- retrieveProxy: [implementation]
Static Public Member Functions
(id< IModel >)	+ getInstance

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Detailed Description

A Singleton IModel implementation.

In PureMVC, the Model class provides access to model objects (Proxies) by named lookup.

The Model assumes these responsibilities:

• Maintain a cache of IProxy instances.
• Provide methods for registering, retrieving, and removing IProxy instances.

Your application must register IProxy instances with the Model. Typically, you use an ICommand to create and register IProxy instances once the Facade has initialized the Core actors.

See also:

Proxy, IProxy

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Member Function Documentation

+ (id< IModel >) getInstance

Model Singleton Factory method.

Returns:

the Singleton instance

- (BOOL) hasProxy:

(NSString *)

proxyName

[implementation]

Check if a Proxy is registered

Parameters:

proxyName

Returns:

whether a Proxy is currently registered with the given proxyName.

Reimplemented from < IModel >.

- (id) init

Constructor.

This IModel implementation is a Singleton, so you should not call the constructor directly, but instead call the static Singleton Factory method [Model getInstance]

Exceptions:

NSException

if Singleton instance has already been constructed

- (void) initializeModel

Initialize the Singleton Model instance.

Called automatically by the constructor, this is your opportunity to initialize the Singleton instance in your subclass without overriding the constructor.

Returns:

void

- (void) registerProxy:

(id<IProxy>)

proxy

[implementation]

Register an IProxy with the Model.

Parameters:

proxy

an IProxy to be held by the Model.

Reimplemented from < IModel >.

- (id< IProxy >) removeProxy:

(NSString *)

proxyName

[implementation]

Remove an IProxy from the Model.

Parameters:

proxyName

name of the IProxy instance to be removed.

Returns:

the IProxy that was removed from the Model

Reimplemented from < IModel >.

- (id< IProxy >) retrieveProxy:

(NSString *)

proxyName

[implementation]

Retrieve an IProxy from the Model.

Parameters:

proxyName

Returns:

the IProxy instance previously registered with the given proxyName.

Reimplemented from < IModel >.