Method Chaining.

October 27, 2008

ob.fun1().fun2():

This way of calling functions is called Method Chaining. I have seen this using in big projects quite often. Here 1st ob.fun1() will be called which will return the some object. Then this object's fun2() will be called.

The below example is to illustrate the Method Chaining.

Eg:

=================================================================

class A

{

int x;

public:

A() {x=10; }

int getX() { return x;}

};

class B

{

int y;

public:

B() { y=20; }

A fun2();

};

A B::fun2()

{

A o;

return o;

}

int main()

{

A ob;

B ob2;

cout<< ob2.fun2().getX() ;

return 0;

}

=================================================================

Output:

Comments

Vijay Koteswar said…

The below example is just to illustrate the Method Chaining.

Eg:
==============================
class A
{
int x;
public:
A() {x=10; }
int getX() { return x;}
};

class B
{
int y;
public:
B() { y=20; }
A fun2();
};

A B::fun2()
{
A o;
return o;
}

int main()
{
A ob;
B ob2;

cout<< ob2.fun2().getX();
return 0;
}
==============================

27 October 2008 at 17:08