static void Main(string[] args)
{
#region Prototype Pattern
/* Use the Prototype pattern when
* You want to:
* • Hide concrete classes from the client.
* • Add and remove new classes (via prototypes) at runtime.
* • Keep the number of classes in the system to a minimum.
* • Adapt to changing structures of data at runtime.
* Because:
* • In C# 3.0, cloning by deep copying is absolutely straightforward.
* Consider using this pattern:
* • With the Composite pattern, to provide archiving.
* • Instead of the Factory Method pattern, when subclasses start proliferating
*/
Console.WriteLine("");
Console.WriteLine("=================Prototype Pattern=========================");
WholeLifePremiumIllustrations illustrations = new WholeLifePremiumIllustrations();
WholeLife wl1 = illustrations.Prototypes["SFWholeLife"].Clone();
wl1.ChildRiders[0].CoverageAmount = 1000000000;
WholeLife wl2 = illustrations.Prototypes["IMLWholeLife"].DeepCopy();
wl2.ChildRiders[0].CoverageAmount = 1000000000;
Console.WriteLine("");
Console.WriteLine("SFWholeLife Actual Object Coverage Amount : " + illustrations.Prototypes["SFWholeLife"].ChildRiders[0].CoverageAmount);
Console.WriteLine("SFWholeLife Cloned Copy Coverage Amount : " + wl1.ChildRiders[0].CoverageAmount);
Console.WriteLine("");
Console.WriteLine("IMLWholeLife Actual Object Coverage Amount : " + illustrations.Prototypes["IMLWholeLife"].ChildRiders[0].CoverageAmount);
Console.WriteLine("IMLWholeLife Deep Copy Object Coverage Amount : " + wl2.ChildRiders[0].CoverageAmount);
Console.WriteLine("");
#endregion
#region Factory Pattern
/*The Factory Method pattern is a way of creating objects, but letting subclasses
* decide exactly which class to instantiate. Various subclasses might implement the
* interface; the Factory Method instantiates the appropriate subclass based on information
* supplied by the client or extracted from the current state.
*
* Use the Factory Method pattern when
* • Flexibility is important.
* • Objects can be extended in subclasses
* • There is a specific reason why one subclass would be chosen over another—this logic forms part of the Factory
* Method.
* • A client delegates responsibilities to subclasses in parallel hierarchies.
* Consider using instead....
* • The Abstract Factory, Prototype, or Builder patterns, which are more flexible (though also more complex).
* • The Prototype pattern to store a set of objects to clone from the abstract factory.
*/
Samples.StructuralPatterns.General.ProductRequest request = new Samples.StructuralPatterns.General.ProductRequest()
{
Amount = 10000,
IsSmoker = false,
IssueAge = 45,
ProductType = StructuralPatterns.Common.ProductTypes.WholeLife
};
ProductCreator creator = new ProductCreator();
IProduct product = creator.GetFactoryProduct(request);
Console.WriteLine("=================Factory Pattern=========================");
Console.WriteLine("");
Console.WriteLine("Whole Life Product Amount: {0} and Premium: {1} ", product.Benefit.ToString("C"), product.CalculatePremium().ToString("C"));
Console.WriteLine("");
#endregion
#region Singleton Pattern
#endregion
#region Abstract Factory
/* Use the Abstract Factory pattern when
* • A system should be independent of how its products are created, composed, and represented.
* • A system can be configured with one of multiple families of products.
* • The constraint requiring products from the same factory to be used together must be enforced.
* • The emphasis is on revealing interfaces, not implementations.
*/
ILifeFactory factory = new LifeFactory(request);
ILifeProduct lifeproduct = factory.GetLifeProduct();
ITermProduct tpProduct = factory.GetTermProduct(false);
ITermProduct ropProduct = factory.GetTermProduct(true);
Console.WriteLine("");
Console.WriteLine("==========================Abstract Factory==============================");
Console.WriteLine("Whole Life Product Premium : " + lifeproduct.CalculatePremium().ToString("C"));
Console.WriteLine("Term Plan Product Premium : " + tpProduct.CalculatePremium().ToString("C"));
Console.WriteLine("ROP Product Premium : " + ropProduct.CalculatePremium().ToString("C"));
Console.WriteLine("");
IDIFactory difactory = new DIFactory(request);
IPaycheckProtection diproduct = difactory.GetDIProduct();
IBusinessExpense beproduct = difactory.GetBEProduct(false);
IBusinessExpense beproduct1 = difactory.GetBEProduct(true);
Console.WriteLine("");
Console.WriteLine("Paycheck protection Product Premium : " + diproduct.CalculatePremium().ToString("C"));
Console.WriteLine("Business Expense Product Premium : " + beproduct.CalculatePremium().ToString("C"));
Console.WriteLine("Business Expense 2013 Product Premium : " + beproduct1.CalculatePremium().ToString("C"));
Console.WriteLine("");
#endregion
#region Builder Pattern
Samples.StructuralPatterns.General.ProductRequest request11 = new StructuralPatterns.General.ProductRequest()
{
Amount = 100000,
IsSmoker = false,
IssueAge = 34,
ProductType = Common.ProductTypes.WholeLife
};
Samples.StructuralPatterns.General.ProductRequest berequest1 = new StructuralPatterns.General.ProductRequest()
{
Amount = 40000,
IsSmoker = true,
IssueAge = 45,
ProductType = Common.ProductTypes.BusinessExpense
};
IBuilder builder = new LifeBuilder(request11);
IBuilder bebuilder = new DIBuilder(berequest1);
Console.WriteLine("");
Console.WriteLine("==========================Builder Pattern=============================");
Console.WriteLine("Created Whole Life Extended product and Calcuated Premium is : " + builder.InsuranceProduct.CalculatePremium().ToString("C"));
Console.WriteLine("Created BE Extended product and Calcuated Premium is : " + bebuilder.InsuranceProduct.CalculatePremium().ToString("C"));
Console.WriteLine("");
#endregion
Console.ReadKey();
}