Java subclass: several constructors inherited from an abstract superclass

Question

Basically, I have:

public abstract class AbstractClass {
    public AbstractClass( Type arg0, Type arg1, Type arg2 ) {
        // do some stuff with all those args
    }

    public AbstractClass( Type onlyOneArg ) {
        // do different stuffs with this different arg.
    }

    protected someMethods() { /* ... */ }
}

And I have several problems in subclasses:

• First, in most cases, I should uselessly rewrite the constructors. Not very annoying, just a little dirty for the eyes.
• And, more important , I am not forced to implement both constructors (although both of them are used in the program).

An example of my current subclasses:

public class MyClass extends AbstractClass {
    public MyClass( Type arg0, Type arg1, Type arg2 ) {
        super( arg0, arg1, arg2 );
    }

    public MyClass( Type onlyOneArg ) {
        super( onlyOneArg );
    }
}

and

• I should be able to write some specific code in the constructor of the subclass if I want.
• I have too much common code that I want to keep in an abstract class.

Can i do something? Is there something I don't know about Java? Or is my design bad? Or..?

Answer 1

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interface AbstractClassFactory {
  AbstractClass create( Type arg0, Type arg1, Type arg2 );
  AbstractClass create( Type onlyOneArg );
}

Answer 2

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