Implementing ICloneable in a class
suggest changeImplement ICloneable
in a class with a twist. Expose a public type safe Clone()
and implement object Clone()
privately.
public class Person : ICloneable
{
// Contents of class
public string Name { get; set; }
public int Age { get; set; }
// Constructor
public Person(string name, int age)
{
this.Name=name;
this.Age=age;
}
// Copy Constructor
public Person(Person other)
{
this.Name=other.Name;
this.Age=other.Age;
}
#region ICloneable Members
// Type safe Clone
public Person Clone() { return new Person(this); }
// ICloneable implementation
object ICloneable.Clone()
{
return Clone();
}
#endregion
}
Later to be used as follows:
{
Person bob=new Person("Bob", 25);
Person bob_clone=bob.Clone();
Debug.Assert(bob_clone.Name==bob.Name);
bob.Age=56;
Debug.Assert(bob.Age!=bob.Age);
}
Notice that changing the age of bob
does not change the age of bob_clone
. This is because the design uses cloning instead of assigning of (reference) variables.
Found a mistake? Have a question or improvement idea?
Let me know.
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