计算器:
public interface ICalculator
{
int Calculate(int a, int b);
}
public class Calculator : ICalculator
{
private readonly ICalculatorStrategy _calculatorStrategy;
public Calculator(ICalculatorStrategy calculatorStrategy)
{
_calculatorStrategy = calculatorStrategy;
}
public int Calculate(int a, int b)
{
return _calculatorStrategy.Calculate(a, b);
}
}
计算器策略:
public interface ICalculatorStrategy
{
int Calculate(int a, int b);
}
public class AdditionCalculator : ICalculatorStrategy
{
public int Calculate(int a, int b)
{
return a + b;
}
}
public class MultiplyCalculator : ICalculatorStrategy
{
public int Calculate(int a, int b)
{
return a * b;
}
}
计算器用途:
public class CalculatorUsageOne
{
private readonly ICalculator _calculator;
public CalculatorUsageOne(ICalculator calculator)
{
_calculator = calculator;
}
public void Process()
{
Console.WriteLine(_calculator.Calculate(6, 5));
}
}
public class CalculatorUsageTwo
{
private readonly ICalculator _calculator;
public CalculatorUsageTwo(ICalculator calculator)
{
_calculator = calculator;
}
public void Process()
{
Console.WriteLine(_calculator.Calculate(6, 5));
}
}
结构图注册表:
public class DependencyRegistry : Registry
{
public DependencyRegistry()
{
For<ICalculatorStrategy>().Use<AdditionCalculator>().Named("Addition");
For<ICalculatorStrategy>().Use<MultiplyCalculator>().Named("Multiply");
For<ICalculator>().Use<Calculator.Calculator>();
}
}
对于 CalculatorUsageOne 我想添加数字(使用AdditionCalculator)。对于 CalculatorUsageTwo 我想将数字相乘(使用MultiplyCalculator)。
如何使用 StructureMap 实现这一目标?