edwardean/factory

7/10

Factory Method

运行时动态决定子类的对象

ZHObject:

Des: 单元数据集合
SubClassing: NSObject
Property: ZHPeople *people
		  ZHMessage *message;
Methods:  -(void)bindWithObject:(id<ZHObject>)object;
*IMPORTANT*: 该方法必须由子类重写实现，完成子类数据处理

ZHPeople:

Des: 单元数据(人)
SubClassing: ZHObject
Property:	NSString* name;

ZHMessage:

Des: 单元数据(消息)
SubClassing: ZHObject
Property: NSString *messageContent

ZHFactory

Des: Factory method, create ZHPeople or ZHMessage instance
SubClassing: NSObject
Property: ZHPeople *people;
		  ZHMessage *message;
Methods: + (ZHObject *)Factory:(id<ZHObject>)object;

ZHModel

Des: 实现数据绑定
SubClassing: NSObject
Property: ZHObject *object; 基本数据单元
		  NSArray *objects; 数据集合
Methods: - (void)bindModel:(id<ZHModel>)model;

ZHViewController

Des: 测试

  ZHPeople *people = [[ZHPeople alloc] init];
  people.name = @"Edward";
  
  ZHMessage *message = [[ZHMessage alloc] init];
  message.messageContent = @"The isa instance variable of the new instance is 
  	initialized to a data structure that describes the class; memory for all other 
  	instance variables is set to 0.";
  
  NSArray *objects = @[people,message];
  ZHModel *model = [[ZHModel alloc] init];
  model.objects = objects;
  [model bindModel:model];