浅析Web Service数据转换器对象

//C# 
namespace VisionTask.Training.ServicePattern.DataTransferObject.Raw 
{ 
/// <summary> 
/// 需要通过多次调用生产者服务“拼凑”的消息。 
/// </summary> 
struct Quote 
{ 
public struct QuoteItem 
{ 
public string ProductId; 
public double UnitPrice; 
} 

public string Id; 
public string Company; 
public QuoteItem[] Items; 
} 

/// <summary> 
/// 通过Property + Indexer 方式实现的DTO 操作方式。 
/// </summary> 
class DataTransferObjectA 
{ 
private Quote quote = new Quote(); 

public string Id 
{ 
get { return quote.Id; } 
set { quote.Id = value; } 
} 

public string Company 
{ 
get { return quote.Company; } 
set { quote.Company = value; } 
} 

public Quote.QuoteItem this[int index] 
{ 
get { return quote.Items[index]; } 
set { quote.Items[index] = value; } 
} 
} 

/// <summary> 
/// 通过Get() + Set() 方式实现的DTO 操作方式。 
/// </summary> 
class DataTransferObjectB 
{ 
private Quote quote = new Quote(); 

public string GetId() 
{ 
return quote.Id; 
} 

public string GetCompany() 
{ 
return quote.Company; 
} 

public void SetId(string id) 
{ 
quote.Id = id; 
} 

public void SetCompany(string company) 
{ 
quote.Company = company; 
} 

public double GetUnitPrice(int index) 
{ 
return quote.Items[index].UnitPrice; 
} 

public void SetUnitPrice(int index, double unitPrice) 
{ 
quote.Items[index].UnitPrice = unitPrice; 
} 

public string GetProductId(int index) 
{ 
return quote.Items[index].ProductId; 
} 

public void SetProductId(int index, string productId) 
{ 
quote.Items[index].ProductId = productId; 
} 
} 
}