public static Mammal CreateMammal(MammalSpecies Species)
{
Mammal animalObj = null;//Animaltype unknown at this time.
//Lets determine users choice of animal.
switch (Species)
{
case MammalSpecies.Cat:
animalObj = new Cat();
break;
case MammalSpecies.Dog:
animalObj = new Dog();
break;
case MammalSpecies.Gorilla:
animalObj = new Gorilla();
break;
default:
Debug.Assert(false, "Not implemented");
break;
}
//Set animal category
animalObj.Category = CategoryType.Mammal;
return animalObj;//Return created instance of object.
}
public static Animal CreateAnimal(string animalCategory, string animalName,int shoutNumber)
{
Animal result=null;
switch (animalCategory)
{
case "貓":
result = new Cat(animalName);
break;
case "狗":
result = new Dog(animalName);
break;
case "羊":
result = new Sheep(animalName);
break;
}
result.ShoutNum = shoutNumber;
return result;
}
public static Mammal CreateMammal(MammalSpecies species)
{
Mammal animalObj = null;//Object type not known at this time
try
{
//Object type determined by late binding
switch (species)
{
case MammalSpecies.Cat:
animalObj = new Cat();//late binding
break;
case MammalSpecies.Dog:
animalObj = new Dog();//late binding
break;
default:
Debug.Assert(false, "To be completed!");
break;
}
}
//custom exception
catch (Exception e)
{
e.Message.ToString();
}
finally
{
//set category
animalObj.Category = CategoryType.Mammal;
}
return animalObj;
}
/// <summary>
/// Method creates animal
/// </summary>
/// <param name="row"></param>
/// <returns></returns>
public Animal CreateAnimal(DataRow row)
{
string creature = null;
string objID = row["ID"].ToString();
string objName = row["Name"].ToString();
int objAge = int.Parse(row["Age"].ToString());
GenderType objGender = (GenderType)row["Gender"];
CategoryType objCategory = (CategoryType)row["Category"];
string objInfo = row["ExtraInfo"].ToString();
//type now known at this time
Animal animalObject = null;
string ID = animalObject.ID;
string nickName = animalObject.NickName;
int age = animalObject.Age;
CategoryType category = animalObject.Category;
;
GenderType gender = animalObject.Gender;
int numberOfTeeth = animalObject.NumberOfTeeth;
bool quaranteen = animalObject.Quarantine;
int numberOfDays = animalObject.NumberOfDays;
if (creature == "Dog")
{
animalObject = new Dog(ID, nickName, age, category, gender, numberOfTeeth, quaranteen, numberOfDays);
}
else if (creature == "Cat")
{
animalObject = new Cat();
}
return animalObject;
}