How about using interfaces to expose a subset of the functionality?
Here is one way.
interface Bar
{
Meth1();
Meth7();
}
class Foo:Bar
{
static Bar getBar()
{
return (Bar)new Foo()
}
static Foo getFoo()
{
return new Foo();
}
private Foo()
{
}
Bar.Meth1(){
Meth1();
}
Bar.Meth7() {
Meth7();
}
Meth1(){
}
.
.
Meth7(){
}
}
class TestFooAndBar {
Foo myFoo = Bar.getFoo();
Bar myBar = Bar.getBar();
myFoo.Meth1 //works
myFoo.Meth5 //works
myBar.Meth1 //works just like the myFoo call above
myBar.Meth5 //oops, the method doesn't exist
}
-----Original Message-----
From: Chris Jenkin [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 09, 2002 4:50 PM
To: [EMAIL PROTECTED]
Subject: [DOTNET] General object question?
I have a class that has grown quite large. It has come to pass that I would
like to expose a very small subset of this class' functionality as another
class(?). Here's the example:
I have class Foo with 10 methods lets say (Meth1 - Meth10)
class Foo {
Meht1 {
}
Meth2 {
}
etc...
}
What I would like to do is something like the following:
1) Create a class that exposes only a portion of the functionality of class
Foo, Bar is a good name for this.
class Bar : inherits Foo (?) {
Meth1 {
}
Meth7 {
}
}
2) Give the "user" a choice of which class they would like to use depending
on the functionality they need.
class TestFooAndBar {
Foo myFoo = new Foo();
Bar myBar = new Bar();
myFoo.Meth1 //works
myFoo.Meth5 //works
myBar.Meth1 //works just like the myFoo call above
myBar.Meth5 //oops, the method doesn't exist
}
Is this doable? I don't really want to rewrite Foo into a new Bar, because
Bar would need about 90% of the internal Foo code to work properly and I
would like to avoid big changes to Foo as it is already implemented in a
large volume of code. What to do?
TIA
CJ
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