//Depedency injection using constructor
public void SavePerson(Person person)
{
dbDal.SavePersonalDetails(person);
}
public void SavePersonalDetails(Person person)
{
Console.WriteLine("Personal details saved to oracle " + person.PersonName);
}
//Depedency Injection using function parameter
public void SavePerson(Person person,IDatabase DB)
{
DB.SavePersonalDetails(person);
}
static void Main(string[] args)
{
Person person = new Person() { PersonID = 101, PersonName = "karan" };
IDatabase db;
//saving in SQL
db = new SQLServerDB();
person.SavePerson(person, db);
db = new OracleDB();
person.SavePerson(person, db);
//Depedency injection using constructor
Person personSQL = new Person(new SQLServerDB()) { PersonID = 102, PersonName = "shukla" };
Person personOracle = new Person(new OracleDB()) { PersonID = 103, PersonName = "John" };
personSQL.SavePerson(personSQL);
personOracle.SavePerson(personOracle);
//depdency injection by unity
IUnityContainer containerObj = new UnityContainer();
containerObj.RegisterType<Person>();
containerObj.RegisterType<IDatabase, SQLServerDB>();
//save into sql
Person _person = containerObj.Resolve<Person>();
_person.PersonID = 103;
_person.PersonName = "SQL Iunity";
_person.SavePerson(_person);
containerObj.RegisterType<IDatabase, OracleDB>();
_person = containerObj.Resolve<Person>();
_person.PersonID = 104;
_person.PersonName = "Orcale Iunity";
_person.SavePerson(_person);
Console.Read();
}