Abstract Factory pattern -- Structural example
2024-07-21 02:27:42
供稿：网友
uml class diagram
using system;
// "abstractfactory"
abstract class abstractfactory
{
// methods
abstract public abstractproducta createproducta();
abstract public abstractproductb createproductb();
}
// "concretefactory1"
class concretefactory1 : abstractfactory
{
// methods
override public abstractproducta createproducta()
{
return new producta1();
}
override public abstractproductb createproductb()
{
return new productb1();
}
}
// "concretefactory2"
class concretefactory2 : abstractfactory
{
// methods
override public abstractproducta createproducta()
{
return new producta2();
}
override public abstractproductb createproductb()
{
return new productb2();
}
}
// "abstractproducta"
abstract class abstractproducta
{
}
// "abstractproductb"
abstract class abstractproductb
{
// methods
abstract public void interact( abstractproducta a );
}
// "producta1"
class producta1 : abstractproducta
{
}
// "productb1"
class productb1 : abstractproductb
{
// methods
override public void interact( abstractproducta a )
{
console.writeline( this + " interacts with " + a );
}
}
// "producta2"
class producta2 : abstractproducta
{
}
// "productb2"
class productb2 : abstractproductb
{
// methods
override public void interact( abstractproducta a )
{
console.writeline( this + " interacts with " + a );
}
}
// "client" - the interaction environment of the products
class environment
{
// fields
private abstractproducta abstractproducta;
private abstractproductb abstractproductb;
// constructors
public environment( abstractfactory factory )
{
abstractproductb = factory.createproductb();
abstractproducta = factory.createproducta();
}
// methods
public void run()
{
abstractproductb.interact( abstractproducta );
}
}
/// <summary>
/// clientapp test environment
/// </summary>
class clientapp
{
public static void main(string[] args)
{
abstractfactory factory1 = new concretefactory1();
environment e1 = new environment( factory1 );
e1.run();
abstractfactory factory2 = new concretefactory2();
environment e2 = new environment( factory2 );
e2.run();
console.read();
}
}
